National Library of Energy BETA

Sample records for active remote sensors

  1. Remote electrochemical sensor

    DOE Patents [OSTI]

    Wang, Joseph (Las Cruces, NM); Olsen, Khris (Richland, WA); Larson, David (Las Cruces, NM)

    1997-01-01

    An electrochemical sensor for remote detection, particularly useful for metal contaminants and organic or other compounds. The sensor circumvents technical difficulties that previously prevented in-situ remote operations. The microelectrode, connected to a long communications cable, allows convenient measurements of the element or compound at timed and frequent intervals and instrument/sample distances of ten feet to more than 100 feet. The sensor is useful for both downhole groundwater monitoring and in-situ water (e.g., shipboard seawater) analysis.

  2. Remote electrochemical sensor

    DOE Patents [OSTI]

    Wang, J.; Olsen, K.; Larson, D.

    1997-10-14

    An electrochemical sensor is described for remote detection, particularly useful for metal contaminants and organic or other compounds. The sensor circumvents technical difficulties that previously prevented in-situ remote operations. The microelectrode, connected to a long communications cable, allows convenient measurements of the element or compound at timed and frequent intervals and instrument/sample distances of ten feet to more than 100 feet. The sensor is useful for both downhole groundwater monitoring and in-situ water (e.g., shipboard seawater) analysis. 21 figs.

  3. Remote Sensor Placement

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the last decade there has been significant interest in research to deploy sensor networks. This research is driven by the fact that the costs associated with installing sensor...

  4. Remote Sensor Placement

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners *ReindustrializationEnergy Remote AlaskanJ.E.M.

  5. Multiple Instrument Distributed Aperture Sensor (MIDAS) For Planetary Remote Sensing

    E-Print Network [OSTI]

    Marcus, Philip S.

    Multiple Instrument Distributed Aperture Sensor (MIDAS) For Planetary Remote Sensing Joe Pitman An innovative approach that enables greatly increased return from planetary science remote sensing missions as the primary remote sensing science payload, thereby reducing the cost, resources, complexity, integration

  6. Microwave Sensors Active and David G. Long

    E-Print Network [OSTI]

    Long, David G.

    Chapter 6 Microwave Sensors ­ Active and Passive David G. Long Electrical and Computer Engineering Department Brigham Young University Center for Remote Sensing 459 Clyde Building, Provo, UT 84602, long be classified as either passive (radiometers) or active (radars). Each sensor class provides unique insight

  7. Multiple Instrument Distributed Aperture Sensor (MIDAS) For Remote Sensing

    E-Print Network [OSTI]

    Fienup, James R.

    Multiple Instrument Distributed Aperture Sensor (MIDAS) For Remote Sensing Joe Pitman,a , Alan that enables greatly increased return from earth and planetary science remote sensing missions is described are integrated into MIDAS as the primary remote sensing science payload, thereby reducing the cost, resources

  8. An Overview of the Use of Remote Embedded Sensors for Audio Acquisition and Processing

    E-Print Network [OSTI]

    Girod, Lewis; Roch, Marie A

    2006-01-01

    Conference on Embedded Networked Sensor Systems (SenSys05),LEAP) embedded networked sensor system. In IPSN ’06:building a remote embedded sensing system. In practice, many

  9. Optimal Strategies for Communication and Remote Estimation with an Energy Harvesting Sensor

    E-Print Network [OSTI]

    Teneketzis, Demosthenis

    1 Optimal Strategies for Communication and Remote Estimation with an Energy Harvesting Sensor A strategies. Communication problems with energy harvesting transmitters have been studied recently (see [1 with an energy harvesting sensor and a remote estimator. The sensor observes the state of a discrete-time source

  10. A non invasive, wearable sensor platform for multi-parametric remote monitoring in CHF

    E-Print Network [OSTI]

    Lu?trek, Mitja

    ; Congestive Heart Failure (CHF); Multi- parametric monitoring; Electrocardiogram (ECG); Skin temperature1 A non invasive, wearable sensor platform for multi-parametric remote monitoring in CHF patients parameters. In this context, accurate and reliable remote monitoring solutions based on state

  11. The RTMS (Remote Traffic Microwave Sensor) unit is a traffic sensor which uses microwave signals to detect vehicles. Unlike sensors which use the Doppler effect, this sensor

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    1 RTMS The RTMS (Remote Traffic Microwave Sensor) unit is a traffic sensor which uses microwave counter unit. Additional items for deployment include solar panel, batteries and modem with cellular dimly. The LED is bright only when data is being downloaded from it. Solar Panel The solar panel

  12. EVALUATING AN INNOVATIVE OXYGEN SENSOR FOR REMOTE SUBSURFACE OXYGEN MEASUREMENTS

    SciTech Connect (OSTI)

    Millings, M; Brian Riha, B; Warren Hyde, W; Karen Vangelas, K; Brian02 Looney, B

    2006-10-12

    Oxygen is a primary indicator of whether anaerobic reductive dechlorination and similar redox based processes contribute to natural attenuation remedies at chlorinated solvent contaminated sites. Thus, oxygen is a viable indicator parameter for documenting that a system is being sustained in an anaerobic condition. A team of researchers investigated the adaptation of an optical sensor that was developed for oceanographic applications. The optical sensor, because of its design and operating principle, has potential for extended deployment and sensitivity at the low oxygen levels relevant to natural attenuation. The results of the research indicate this tool will be useful for in situ long-term monitoring applications, but that the traditional characterization tools continue to be appropriate for characterization activities.

  13. Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies

    E-Print Network [OSTI]

    Pan, Ming

    Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies-sensor/multi-platform approach to water and energy cycle prediction is demonstrated in an effort to understand the variability to an improved understanding of water and energy cycles within the NAME region and providing a novel framework

  14. Remotely controlled sensor apparatus for use in dig-face characterization system

    DOE Patents [OSTI]

    Josten, N.E.; Svoboda, J.M.

    1999-05-25

    A remotely controlled sensor platform apparatus useful in a dig-face characterization system is deployed from a mobile delivery device such as standard heavy construction equipment. The sensor apparatus is designed to stabilize sensors against extraneous motions induced by heavy equipment manipulations or other outside influences, and includes a terrain sensing and sensor elevation control system to maintain the sensors in close ground proximity. The deployed sensor apparatus is particularly useful in collecting data in work environments where human access is difficult due to the presence of hazardous conditions, rough terrain, or other circumstances that prevent efficient data collection by conventional methods. Such work environments include hazardous waste sites, unexploded ordnance sites, or construction sites. Data collection in these environments by utilizing the deployed sensor apparatus is desirable in order to protect human health and safety, or to assist in planning daily operations to increase efficiency. 13 figs.

  15. Remotely controlled sensor apparatus for use in dig-face characterization system

    DOE Patents [OSTI]

    Josten, Nicholas E. (Idaho Falls, ID); Svoboda, John M. (Idaho Falls, ID)

    1999-01-01

    A remotely controlled sensor platform apparatus useful in a dig-face characterization system is deployed from a mobile delivery device such as standard heavy construction equipment. The sensor apparatus is designed to stabilize sensors against extraneous motions induced by heavy equipment manipulations or other outside influences, and includes a terrain sensing and sensor elevation control system to maintain the sensors in close ground proximity. The deployed sensor apparatus is particularly useful in collecting data in work environments where human access is difficult due to the presence of hazardous conditions, rough terrain, or other circumstances that prevent efficient data collection by conventional methods. Such work environments include hazardous waste sites, unexploded ordnance sites, or construction sites. Data collection in these environments by utilizing the deployed sensor apparatus is desirable in order to protect human health and safety, or to assist in planning daily operations to increase efficiency.

  16. Potentiometric Sensor for Real-Time Remote Surveillance of Actinides in Molten Salts

    SciTech Connect (OSTI)

    Natalie J. Gese; Jan-Fong Jue; Brenda E. Serrano; Guy L. Fredrickson

    2012-07-01

    A potentiometric sensor is being developed at the Idaho National Laboratory for real-time remote surveillance of actinides during electrorefining of spent nuclear fuel. During electrorefining, fuel in metallic form is oxidized at the anode while refined uranium metal is reduced at the cathode in a high temperature electrochemical cell containing LiCl-KCl-UCl3 electrolyte. Actinides present in the fuel chemically react with UCl3 and form stable metal chlorides that accumulate in the electrolyte. This sensor will be used for process control and safeguarding of activities in the electrorefiner by monitoring the concentrations of actinides in the electrolyte. The work presented focuses on developing a solid-state cation conducting ceramic sensor for detecting varying concentrations of trivalent actinide metal cations in eutectic LiCl-KCl molten salt. To understand the basic mechanisms for actinide sensor applications in molten salts, gadolinium was used as a surrogate for actinides. The ß?-Al2O3 was selected as the solid-state electrolyte for sensor fabrication based on cationic conductivity and other factors. In the present work Gd3+-ß?-Al2O3 was prepared by ion exchange reactions between trivalent Gd3+ from GdCl3 and K+-, Na+-, and Sr2+-ß?-Al2O3 precursors. Scanning electron microscopy (SEM) was used for characterization of Gd3+-ß?-Al2O3 samples. Microfocus X-ray Diffraction (µ-XRD) was used in conjunction with SEM energy dispersive X-ray spectroscopy (EDS) to identify phase content and elemental composition. The Gd3+-ß?-Al2O3 materials were tested for mechanical and chemical stability by exposing them to molten LiCl-KCl based salts. The effect of annealing on the exchanged material was studied to determine improvements in material integrity post ion exchange. The stability of the ß?-Al2O3 phase after annealing was verified by µ-XRD. Preliminary sensor tests with different assembly designs will also be presented.

  17. Self-Organizing Relay Network Supporting Remotely Deployed Sensor Nodes in Military Operations

    E-Print Network [OSTI]

    Eliassen, Frank

    Self-Organizing Relay Network Supporting Remotely Deployed Sensor Nodes in Military Operations Dalimir Orfanus, Frank Eliassen Department of Informatics University of Oslo Oslo, Norway dalimir.orfanus@no.abb. Thus, alternative communications approaches have to be used, such as relay links via unmanned aerial

  18. ARM - Evaluation Product - Active Remote Sensing of Clouds from...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ProductsActive Remote Sensing of Clouds from Ka-band ARM Zenith Radars ARM Data Discovery Browse Data Documentation Use the Data File Inventory tool to view data availability at...

  19. THE APPLICATION OF REMOTE SENSOR TECHNOLOGY TO ASSIST

    E-Print Network [OSTI]

    Biagioni, Edoardo S.

    , and solar radiation sensors. Our units must be "invisible" (camouflaged), very low energy, and must allow, rainfall, wind and solar radiation in the rare species' habitat. In addition, it is useful to have the same distributed local computation. Data rates are 1 to 100 bytes/second per node, but networks can be large

  20. Remote sensor response study in the regime of the microwave radiation-induced magnetoresistance oscillations

    SciTech Connect (OSTI)

    Ye, Tianyu; Mani, R. G. [Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 (United States)] [Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 (United States); Wegscheider, W. [Laboratorium für Festkörperphysik, ETH Zürich, 8093 Zürich (Switzerland)] [Laboratorium für Festkörperphysik, ETH Zürich, 8093 Zürich (Switzerland)

    2013-11-04

    A concurrent remote sensing and magneto-transport study of the microwave excited two dimensional electron system (2DES) at liquid helium temperatures has been carried out using a carbon detector to remotely sense the microwave activity of the 2D electron system in the GaAs/AlGaAs heterostructure during conventional magneto-transport measurements. Various correlations are observed and reported between the oscillatory magnetotransport and the remotely sensed reflection. In addition, the oscillatory remotely sensed signal is shown to exhibit a power law type variation in its amplitude, similar to the radiation-induced magnetoresistance oscillations.

  1. REMOTE DETECTION OF INTERNAL PIPELINE CORROSION USING FLUIDIZED SENSORS

    SciTech Connect (OSTI)

    Narasi Sridhar; Garth Tormoen; Ashok Sabata

    2005-10-31

    Pipelines present a unique challenge to monitoring because of the great geographical distances they cover, their burial depth, their age, and the need to keep the product flowing without much interruption. Most other engineering structures that require monitoring do not pose such combined challenges. In this regard, a pipeline system can be considered analogous to the blood vessels in the human body. The human body has an extensive ''pipeline'' through which blood and other fluids are transported. The brain can generally sense damage to the system at any location and alert the body to provide temporary repair, unless the damage is severe. This is accomplished through a vast network of fixed and floating sensors combined with a vast and extremely complex communication/decision making system. The project described in this report mimics the distributed sensor system of our body, albeit in a much more rudimentary fashion. Internal corrosion is an important factor in pipeline integrity management. At present, the methods to assess internal corrosion in pipelines all have certain limitations. In-line inspection tools are costly and cannot be used in all pipelines. Because there is a significant time interval between inspections, any impact due to upsets in pipeline operations can be missed. Internal Corrosion Direct Assessment (ICDA) is a procedure that can be used to identify locations of possible internal corrosion. However, the uncertainties in the procedure require excavation and location of damage using more detailed inspection tools. Non-intrusive monitoring techniques can be used to monitor internal corrosion, but these tools also require pipeline excavation and are limited in the spatial extent of corrosion they can examine. Therefore, a floating sensor system that can deposit at locations of water accumulation and communicate the corrosion information to an external location is needed. To accomplish this, the project is divided into four main tasks related to wireless data transmission, corrosion sensor development, sensor system motion and delivery, and consideration of other pipeline operations issues. In the first year of the program, focus was on sensor development and wireless data transmission. The second year of the program, which was discontinued due to funding shortfall, would have focused on further wireless transmission development, packaging of sensor on wireless, and other operational issues. Because, the second year funding has been discontinued, recommendations are made for future studies.

  2. SPATIO-TEMPORAL CHARACTERIZATION OF AEROSOLS THROUGH ACTIVE USE OF DATA FROM MULTIPLE SENSORS

    E-Print Network [OSTI]

    Obradovic, Zoran

    climate change related studies. In recent years remote sensing instruments of various properties have been. Aerosol concentration and chemical properties are important parameters in climate change modelsSPATIO-TEMPORAL CHARACTERIZATION OF AEROSOLS THROUGH ACTIVE USE OF DATA FROM MULTIPLE SENSORS Z

  3. Airborne Infrared Target Tracking with the Nintendo Wii Remote Sensor 

    E-Print Network [OSTI]

    Beckett, Andrew 1984-

    2012-11-12

    to interface with the Wiimote without modi cation using the Bluetooth? wireless communication protocol, in practice this is not desirable in a UAS because electromagnetic interference (EMI) from these radios may degrade performance of the aircraft telemetry... for logging ight data and relies largely on wireless telemetry for transmitting vehicle state information at up to 10 Hz for display and logging on the ground. For this experiment, the sensor data is collected at 30 Hz to match the camcorder frame rate...

  4. Radiation interchange modeling for active infrared proximity sensor design 

    E-Print Network [OSTI]

    Piper, James Clarice

    1999-01-01

    . This research focuses on information gathered using active optical proximity sensors in the reflectance sensing mode. The portion of energy reflected to a given sensor in combination with the known location of the source and sensor elements provide the basic...

  5. V-140: Apache ActiveMQ Bugs Let Remote Users Conduct Cross-Site...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    0: Apache ActiveMQ Bugs Let Remote Users Conduct Cross-Site Scripting Attacks, Deny Service, and Obtain Potentially Sensitive Information V-140: Apache ActiveMQ Bugs Let Remote...

  6. Remote area wind energy harvesting for low-power autonomous sensors Abstract--A growing demand for deployment of autonomous

    E-Print Network [OSTI]

    Remote area wind energy harvesting for low-power autonomous sensors Abstract--A growing demand a wide range of wind speeds. Results show that power harvesting capability using the discussed alternator electronics to be less than the available power for harvest, which varies as a function of wind speed

  7. Ecological & Environmental Acoustic Remote Sensor (EcoEARS) Application for Long-Term Monitoring and Assessment of Wildlife

    E-Print Network [OSTI]

    Maher, Robert C.

    Ecological & Environmental Acoustic Remote Sensor (EcoEARS) Application for Long-Term Monitoring and Assessment of Wildlife Gonzalo Sanchez; President, Sanchez Industrial Design, Inc., 3510 Beltline Hwy and installation of specialized electronic hardware used to collect both acoustic and environmental data. He holds

  8. New radiological material detection technologies for nuclear forensics: Remote optical imaging and graphene-based sensors.

    SciTech Connect (OSTI)

    Harrison, Richard Karl; Martin, Jeffrey B.; Wiemann, Dora K.; Choi, Junoh; Howell, Stephen W.

    2015-09-01

    We developed new detector technologies to identify the presence of radioactive materials for nuclear forensics applications. First, we investigated an optical radiation detection technique based on imaging nitrogen fluorescence excited by ionizing radiation. We demonstrated optical detection in air under indoor and outdoor conditions for alpha particles and gamma radiation at distances up to 75 meters. We also contributed to the development of next generation systems and concepts that could enable remote detection at distances greater than 1 km, and originated a concept that could enable daytime operation of the technique. A second area of research was the development of room-temperature graphene-based sensors for radiation detection and measurement. In this project, we observed tunable optical and charged particle detection, and developed improved devices. With further development, the advancements described in this report could enable new capabilities for nuclear forensics applications.

  9. Remote sensing image segmentation by active queries Devis Tuia a,n

    E-Print Network [OSTI]

    Camps-Valls, Gustavo

    Remote sensing image segmentation by active queries Devis Tuia a,n , Jordi Mun~oz-Mari´ b , Gustavo Multiscale image segmentation Remote sensing Hyperspectral imagery Multispectral imagery a b s t r a c- istics in a compact way. For remote sensing image segmentation, the selected samples are the most

  10. Rechargeable Sensor Activation under Temporally Correlated Events

    E-Print Network [OSTI]

    Kar, Koushik

    -surveilled regions. For long term monitoring of such environments, sensors can be deployed with rechargeable their occurrences. Typically, sensors are heavily constrained in terms of energy, and thus energy usage optimally only if events are uncorrelated. Index Terms Rechargeable Sensors, Temporal Correlations, Node

  11. Review of remote-sensor potential for wind-energy studies

    SciTech Connect (OSTI)

    Hooke, W.H.

    1981-03-01

    This report evaluates a number of remote-sensing systems such as radars, lidars, and acoustic echo sounders which are potential alternatives to the cup- and propeller anemometers routinely used in wind energy siting. The high costs and demanding operational requirements of these sensors currently preclude their use in the early stages of a multi-phase wind energy siting strategy such as that recently articulated by Hiester and Pennell (1981). Instead, these systems can be used most effectively in the lattermost stages of the siting process - what Hiester and Pennell (1981) refer to as the site development phase, necessary only for the siting of large wind-energy conversion systems (WECS) or WECS clusters. Even for this particular application only four techniques appear to be operational now; that is, if used properly, these techniques should provide the data sets currently considered adequate for wind-energy siting purposes. They are, in rough order of increasing expense and operating demands: optical transverse wind sensors; acoustic Doppler sounders; time-of-flight and continuous wave (CW) Doppler lidar; and frequency-modulated, continuous wave (FM-CW) Doppler radar.

  12. Three-Dimensional Routing in Underwater Acoustic Sensor Networks

    E-Print Network [OSTI]

    Pompili, Dario

    -ASN can perform pollu- tion monitoring (chemical, biological, and nuclear). ¢ Disaster Prevention. Sensor networks that measure seismic activity from remote locations can provide tsunami warnings to coastal areas

  13. Active Control Strategies for Chemical Sensors and Sensor Arrays 

    E-Print Network [OSTI]

    Gosangi, Rakesh

    2013-07-17

    balance between sensing costs and performance. Inspired from the history of active sensing, in this dissertation, we developed active sensing algorithms that address three different computational problems in chemical sensing. First, we consider...

  14. Creating 35 mm Camera Active Pixel Sensors by Glenn Chapman*

    E-Print Network [OSTI]

    Chapman, Glenn H.

    #12;Creating 35 mm Camera Active Pixel Sensors by Glenn Chapman* and Yves Audet** * Simon Fraser Pixel Sensor imaging area device is studied which would be ideal for use with standard 35 mm cameras.5 per sq. cm. By being a retrofit for current 35 mm cameras, and having larger photodiode pixels than

  15. Active pixel sensors for X-ray astronomy

    E-Print Network [OSTI]

    Cohen, Matthew (Matthew L.)

    2005-01-01

    An active pixel sensor array, APS-1, has been fabricated for the purpose of scientific x-ray detection. This thesis presents the results of testing the device. Alternate design architectures are explored. Recommendations ...

  16. PREDICTIVE SIMULATION OF PIEZOELECTRIC WAFER ACTIVE SENSORS FOR STRUCTURAL HEALTH MONITORING

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    1 PREDICTIVE SIMULATION OF PIEZOELECTRIC WAFER ACTIVE SENSORS FOR STRUCTURAL HEALTH MONITORING: structural health monitoring (SHM), piezoelectric wafer active sensors (PWAS), nondestructive evaluation (NDE sensors (PWAS) are lightweight and inexpensive enablers for structural health monitoring (SHM). After

  17. The Sandia MEMS passive shock sensor : FY07 maturation activities.

    SciTech Connect (OSTI)

    Houston, Jack E.; Blecke, Jill; Mitchell, John Anthony; Wittwer, Jonathan W.; Crowson, Douglas A.; Clemens, Rebecca C.; Walraven, Jeremy Allen; Epp, David S.; Baker, Michael Sean

    2008-08-01

    This report describes activities conducted in FY07 to mature the MEMS passive shock sensor. The first chapter of the report provides motivation and background on activities that are described in detail in later chapters. The second chapter discusses concepts that are important for integrating the MEMS passive shock sensor into a system. Following these two introductory chapters, the report details modeling and design efforts, packaging, failure analysis and testing and validation. At the end of FY07, the MEMS passive shock sensor was at TRL 4.

  18. Application and state of development for remote chemical sensors in environmental monitoring: A literature review

    SciTech Connect (OSTI)

    Schabron, J.F.; Niss, N.D.; Hart, B.K.

    1991-09-01

    A study was performed on chemical sensor technology currently available and under development. The information was compiled into a format wherein information on the sensors is listed in a comparable manner. An introductory section is provided to illustrate the regulatory environment in which such sensor technology will be used. This information should allow corporations or federal agencies ready access to useful information for the potential licensing of sensor technology for commercial development or specific environmental monitoring operations. Although every attempt was made to identify as many chemical sensors as possible, we recognize that some may be missed inadvertently. The accuracy of the information provided by the various sources regarding the state of development for the various sensors was not verified. Judgments or opinions regarding the actual state of development or utility of these devices are not included in this report. However, we feel that this report accurately reflects the state of the art at the present time.

  19. Application and state of development for remote chemical sensors in environmental monitoring: A literature review

    SciTech Connect (OSTI)

    Schabron, J.F.; Niss, N.D.; Hart, B.K.

    1991-09-01

    A study was performed on chemical sensor technology currently available and under development. The information was compiled into a format wherein information on the sensors is listed in a comparable manner. As introductory section is provided to illustrate the regulatory environment in which such sensor technology will be used. This information should allow corporations or federal agencies ready access to useful information for the potential licensing of sensor technology for commercial development or specific environmental monitoring operations. Although every attempt was made to identify as many chemical sensors as possible, we recognize that some may be missed inadvertently. The accuracy of the information provided by the various sources regarding the state of development for the various sensors was not verified. Judgments or opinions regarding the actual state of development or utility of these devices are not included in this report. However, we feel that this report accurately reflects the state of the art at the present time.

  20. EXTENDED PERFORMANCE HANDHELD AND MOBILE SENSORS FOR REMOTE DETECTION OF NATURAL GAS LEAKS

    SciTech Connect (OSTI)

    Michael B. Frish; B. David Green; Richard T. Wainner; Francesca Scire-Scappuzzo; Paul Cataldi; Matthew C. Laderer

    2005-05-01

    This report summarizes work performed by Physical Sciences Inc. (PSI) to advance the state-of-the-art of surveying for leaks of natural gas from transmission and distribution pipelines. The principal project goal was to develop means of deploying on an automotive platform an improved version of the handheld laser-based standoff natural gas leak detector previously developed by PSI and known as the Remote Methane Leak Detector or RMLD. A laser beam which interrogates the air for methane is projected from a spinning turret mounted upon a van. As the van travels forward, the laser beam scans an arc to the front and sides of the van so as to survey across streets and to building walls from a moving vehicle. When excess methane is detected within the arc, an alarm is activated. In this project, we built and tested a prototype Mobile RMLD (MRMLD) intended to provide lateral coverage of 10 m and one lateral scan for every meter of forward motion at forward speeds up to 10 m/s. Using advanced detection algorithms developed as part of this project, the early prototype MRMLD, installed on the back of a truck, readily detected simulated gas leaks of 50 liters per hour. As a supplement to the originally planned project, PSI also participated in a DoE demonstration of several gas leak detection systems at the Rocky Mountain Oilfield Testing Center (RMOTC) during September 2004. Using a handheld RMLD upgraded with the advanced detection algorithms developed in this project, from within a moving vehicle we readily detected leaks created along the 7.4 mile route of a virtual gas transmission pipeline.

  1. Quad Remote Diode and Local Temperature Sensor with SMBus Interface and TruThermTM Technology

    E-Print Network [OSTI]

    Berns, Hans-Gerd

    package Key Specifications Local Temperature Accuracy ±2.0°C (max) Remote Diode Temperature Accuracy ±0 Information Part Number Package Marking NS Package Number Transport Media LM95234CISD 95234CI SDA14B (LLP-14 Block Diagram 20106302 www.national.com 2 LM95234 #12;Pin Descriptions Label Pin # Function Typical

  2. Evaluating a genetically encoded optical sensor of neural activity using electrophysiology in intact adult fruit flies

    E-Print Network [OSTI]

    Laurent, Gilles

    Evaluating a genetically encoded optical sensor of neural activity using electrophysiology. However, the interpretation of images of brain activity produced using such sensors is not straightforward. Several recent studies of sensory coding used G-CaMP 1.3--a calcium sensor--as an indicator of neural

  3. Space Application of Piezoelectric Wafer Active Sensors for Structural Health Monitoring**

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Space Application of Piezoelectric Wafer Active Sensors for Structural Health Monitoring** V class of structural health monitoring (SHM) applications. This paper presents and discusses with conclusions and suggestions for further work. Key Words: structural health monitoring, piezoelectric, sensors

  4. Activity recognition with end-user sensor installation in the home

    E-Print Network [OSTI]

    Rockinson, Randy Joseph

    2008-01-01

    In this work, a system for recognizing activities in the home setting that uses a set of small and simple state-change sensors, machine learning algorithms, and electronic experience sampling is introduced. The sensors are ...

  5. Clustering-based Active Learning on Sensor Type Classification in Buildings

    E-Print Network [OSTI]

    Weimer, Westley

    study on metadata collected from over 20 different sensor types and 2,500 sen- sor streams in threeClustering-based Active Learning on Sensor Type Classification in Buildings Dezhi Hong, Hongning- lenge. Based on the large deployment of sensors in modern commercial buildings, many organizations

  6. SHM of wind turbine blades using piezoelectric active-sensors

    SciTech Connect (OSTI)

    Park, Gyuhae [Los Alamos National Laboratory; Taylor, Stuart G [Los Alamos National Laboratory; Farinholt, Kevin M [Los Alamos National Laboratory; Farrar, Charles R [Los Alamos National Laboratory

    2010-01-01

    This paper presents a variety of structural health monitoring (SHM) techniques, based on the use of piezoelectric active-sensors, used to determine the structural integrity of wind turbine blades. Specifically, Lamb wave propagations, frequency response functions, and time series based methods are utilized to estimate the condition of wind turbine blades. For experiments, a 1m section of a 9m CX100 blade is used. Overall, these three methods yielded a sufficient damage detection capability to warrant further investigation into field deployment. A full-scale fatigue test of a CX-100 wind turbine blade is also conducted. This paper summarizes considerations needed to design such SHM systems, experimental procedures and results, and practical implementation issues that can be used as guidelines for future investigations.

  7. An Activity-Based Sensor Networks Course for Undergraduates with Sun SPOT Devices

    E-Print Network [OSTI]

    Bulusu, Nirupama

    An Activity-Based Sensor Networks Course for Undergraduates with Sun SPOT Devices Damon Tyman that had previously been entirely lecture-based. For the laboratory exercises, we utilized Sun's Java-programmable Sun SPOT [7] sensor network technology. We found the Sun SPOT based laboratory activities to be quite

  8. Structural health monitoring with piezoelectric wafer active sensors predictive modeling and simulation

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Structural health monitoring with piezoelectric wafer active sensors ­ predictive modeling of the state of the art in structural health monitoring with piezoelectric wafer active sensors and follows with conclusions and suggestions for further work Key Words: structural health monitoring, SHM, nondestructive

  9. Thin n-in-p planar pixel sensors and active edge sensors for the ATLAS upgrade at HL-LHC

    E-Print Network [OSTI]

    S. Terzo; A. Macchiolo; R. Nisius; B. Paschen

    2014-11-20

    Silicon pixel modules employing n-in-p planar sensors with an active thickness of 200 $\\mu$m, produced at CiS, and 100-200 $\\mu$m thin active/slim edge sensor devices, produced at VTT in Finland have been interconnected to ATLAS FE-I3 and FE-I4 read-out chips. The thin sensors are designed for high energy physics collider experiments to ensure radiation hardness at high fluences. Moreover, the active edge technology of the VTT production maximizes the sensitive region of the assembly, allowing for a reduced overlap of the modules in the pixel layer close to the beam pipe. The CiS production includes also four chip sensors according to the module geometry planned for the outer layers of the upgraded ATLAS pixel detector to be operated at the HL-LHC. The modules have been characterized using radioactive sources in the laboratory and with high precision measurements at beam tests to investigate the hit efficiency and charge collection properties at different bias voltages and particle incidence angles. The performance of the different sensor thicknesses and edge designs are compared before and after irradiation up to a fluence of $1.4\\times10^{16}n_{eq}/cm^{2}$.

  10. Optimal Remote Homing for Providing Service Differentiation in Information-Aware Multi-Layered Wireless Sensor Networks

    E-Print Network [OSTI]

    Vokkarane, Vinod M.

    -Layered Wireless Sensor Networks Jianping Wang Department of Computer Sciences Georgia Southern University@umassd.edu Abstract-- Sensor networks are fundamentally deployed to handle extreme behaviors across sensing sites. Service differen- tiation in information-aware wireless sensor network refers to the ability to provide

  11. IEEE SENSORS JOURNAL, VOL. 3, NO. 5, OCTOBER 2003 595 Active Structural Error Suppression in MEMS

    E-Print Network [OSTI]

    Chen, Zhongping

    -run perturbations are presented. Index Terms--Error suppression, microelectromechanical sys- tems (MEMS), rate integrating gyroscopes, smart MEMS. I. INTRODUCTION AS MICROELECTROMECHANICAL systems (MEMS) inertial sensorsIEEE SENSORS JOURNAL, VOL. 3, NO. 5, OCTOBER 2003 595 Active Structural Error Suppression in MEMS

  12. Finite Element Simulation of Piezoelectric Wafer Active Sensors for Structural Health Monitoring with Coupled-Filed

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Finite Element Simulation of Piezoelectric Wafer Active Sensors for Structural Health Monitoring) is emerging as an effective and powerful technique in structural health monitoring (SHM). Modeling to analytical calculation and experimental data. Key words: Structural Health Monitoring, PWAS, finite element

  13. Structural Health Monitoring with Piezoelectric Wafer Active Sensors for Space Applications

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Structural Health Monitoring with Piezoelectric Wafer Active Sensors for Space Applications Adrian detection and structural health monitoring. Where appropriate, comparison between different methods-coupling coefficient I. Introduction STRUCTURAL health monitoring (SHM) is an emerging research area with multiple

  14. Characterization of Three-Dimensional-Integrated Active Pixel Sensor for X-Ray Detection

    E-Print Network [OSTI]

    Bautz, Marshall W.

    We have developed a back-illuminated active pixel sensor (APS) which includes an SOI readout circuit and a silicon diode detector array implemented in a separate high-resistivity wafer. Both are connected together using a ...

  15. INT. J. REMOTE SENSING, 2003, VOL. 24, NO. 11, 23232344 Resolution dependence of infrared imagery of active thermal features

    E-Print Network [OSTI]

    Lovejoy, Shaun

    of active thermal features at Kilauea Volcano H. GAONAC'H Centre GEOTOP, Universite´ du Que´bec a` Montre of various vol- canic features in the thermal infrared spectral region (8­12 mm) acquired above the active the (essentially subjective) sensor resolution when interpreting and model- ling active volcanic thermal fields

  16. Scheduling Sensor Activity for Point Information Coverage in Wireless Sensor Networks

    E-Print Network [OSTI]

    Srinivasan, Vikram

    , to monitor some targets of interests at all times. Sensors are often equipped with non-rechargeable batteries such that all targets can be monitored all the time and the network can operate as long as possible. A solution network is the coverage problem [2], which addresses how well a target area is monitored. In some

  17. Rail Sensor Testbed Program: Active Agents in Containers for

    E-Print Network [OSTI]

    Kansas, University of

    . Project Sponsor: Office of Naval Research Contract: N00014-07-1-1042 The University of Kansas Technical of the project, we have developed several data mining algorithms to enable intelligent agents to detect changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4. Data Mining Foundation of Anomaly Detection in Wireless Sensor Networks 10 4.1. Network

  18. A Reconfigurable Active Retrodirective/Direct Conversion Receiver Array for Wireless Sensor Systems

    E-Print Network [OSTI]

    Itoh, Tatsuo

    of California, Los Angeles 405 Hilgard Ave., Los Angeles, CA 90095 Abstract -- A reconfigurable active time. In a retrodirective system, the communication link between the transponder and base station can (a), the array system works as a direct conversion receiver and stores data received from remote

  19. Mountable eddy current sensor for in-situ remote detection of surface and sub-surface fatigue cracks

    DOE Patents [OSTI]

    Yepez, III, Esteban (Albuquerque, NM); Roach, Dennis P. (Albuquerque, NM); Rackow, Kirk A. (Albuquerque, NM); DeLong, Waylon A. (Albuquerque, NM)

    2011-09-06

    A wireless, integrated, mountable, portable, battery-operated, non-contact eddy current sensor that provides similar accuracy to 1970's laboratory scale equipment (e.g., a Hewlett-Packard GP4194A Impedance Analyzer) at a fraction of the size and cost.

  20. ITER Engineering Design Activities -R & DITER-In-Vessel Remote Handling

    E-Print Network [OSTI]

    and to transport radioactive items from the tokamak to the hot-cell where refurbishment or waste disposal radioactive and will require remote maintenance, with special remote handling equipment. An in-vessel transporter system is used for the removal and reinstallation of blanket modules, multifunction manipulators

  1. Studying Altocumulus with Ice Virga Using Ground-Based Active and Passive Remote Sensors

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect PhotovoltaicsStructure andChallenge | Department,AerosolSeasonal andStudying

  2. Studying Mixed-Phased Clouds Using Ground-Based Active and Passive Remote Sensors

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect PhotovoltaicsStructure andChallenge | Department,AerosolSeasonalStudying

  3. Improved Humidity Profiling by Combining Passive and Active Remote Sensors at the Southern Great Plains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATION PLAN FOR THE SITE-218 58 84 168 167Control - EnergyImproved

  4. Remote shock sensing and notification system

    DOE Patents [OSTI]

    Muralidharan, Govindarajan (Knoxville, TN) [Knoxville, TN; Britton, Charles L. (Alcoa, TN) [Alcoa, TN; Pearce, James (Lenoir City, TN) [Lenoir City, TN; Jagadish, Usha (Knoxville, TN) [Knoxville, TN; Sikka, Vinod K. (Oak Ridge, TN) [Oak Ridge, TN

    2010-11-02

    A low-power shock sensing system includes at least one shock sensor physically coupled to a chemical storage tank to be monitored for impacts, and an RF transmitter which is in a low-power idle state in the absence of a triggering signal. The system includes interface circuitry including or activated by the shock sensor, wherein an output of the interface circuitry is coupled to an input of the RF transmitter. The interface circuitry triggers the RF transmitter with the triggering signal to transmit an alarm message to at least one remote location when the sensor senses a shock greater than a predetermined threshold. In one embodiment the shock sensor is a shock switch which provides an open and a closed state, the open state being a low power idle state.

  5. Remote shock sensing and notification system

    DOE Patents [OSTI]

    Muralidharan, Govindarajan (Knoxville, TN); Britton, Charles L. (Alcoa, TN); Pearce, James (Lenoir City, TN); Jagadish, Usha (Knoxville, TN); Sikka, Vinod K. (Oak Ridge, TN)

    2008-11-11

    A low-power shock sensing system includes at least one shock sensor physically coupled to a chemical storage tank to be monitored for impacts, and an RF transmitter which is in a low-power idle state in the absence of a triggering signal. The system includes interference circuitry including or activated by the shock sensor, wherein an output of the interface circuitry is coupled to an input of the RF transmitter. The interface circuitry triggers the RF transmitting with the triggering signal to transmit an alarm message to at least one remote location when the sensor senses a shock greater than a predetermined threshold. In one embodiment the shock sensor is a shock switch which provides an open and a closed state, the open state being a low power idle state.

  6. Remote radiation dosimetry

    DOE Patents [OSTI]

    Braunlich, Peter F. (Pullman, WA); Tetzlaff, Wolfgang (Pullman, WA); Hegland, Joel E. (Pullman, WA); Jones, Scott C. (Pullman, WA)

    1991-01-01

    Disclosed are methods and apparatus for remotely measuring radiation levels. Such are particularly useful for measuring relatively high levels or dosages of radiation being administered in radiation therapy. They are also useful for more general radiation level measurements where remote sensing from the remaining portions of the apparatus is desirable. The apparatus uses a beam generator, such as a laser beam, to provide a stimulating beam. The stimulating beam is preferably of wavelengths shorter than 6 microns, or more advantageously less than 2 microns. The stimulating beam is used to stimulate a remote luminescent sensor mounted in a probe which emits stored luminescent energy resulting from exposure of the sensor to ionizing radiation. The stimulating beam is communicated to the remote luminescent sensor via transmissive fiber which also preferably serves to return the emission from the luminescent sensor. The stimulating beam is advantageously split by a beam splitter to create a detector beam which is measured for power during a reading period during which the luminescent phosphor is read. The detected power is preferably used to control the beam generator to thus produce desired beam power during the reading period. The luminescent emission from the remote sensor is communicated to a suitable emission detector, preferably after filtering or other selective treatment to better isolate the luminescent emission.

  7. Remote radiation dosimetry

    DOE Patents [OSTI]

    Braunlich, P.F.; Tetzlaff, W.; Hegland, J.E.; Jones, S.C.

    1991-03-12

    Disclosed are methods and apparatus for remotely measuring radiation levels. Such are particularly useful for measuring relatively high levels or dosages of radiation being administered in radiation therapy. They are also useful for more general radiation level measurements where remote sensing from the remaining portions of the apparatus is desirable. The apparatus uses a beam generator, such as a laser beam, to provide a stimulating beam. The stimulating beam is preferably of wavelengths shorter than 6 microns, or more advantageously less than 2 microns. The stimulating beam is used to stimulate a remote luminescent sensor mounted in a probe which emits stored luminescent energy resulting from exposure of the sensor to ionizing radiation. The stimulating beam is communicated to the remote luminescent sensor via a transmissive fiber which also preferably serves to return the emission from the luminescent sensor. The stimulating beam is advantageously split by a beam splitter to create a detector beam which is measured for power during a reading period during which the luminescent phosphor is read. The detected power is preferably used to control the beam generator to thus produce desired beam power during the reading period. The luminescent emission from the remote sensor is communicated to a suitable emission detector, preferably after filtering or other selective treatment to better isolate the luminescent emission. 8 figures.

  8. An Experiment in Hierarchical Recognition of Group Activities using Wearable Sensors

    E-Print Network [OSTI]

    Beigl, Michael

    /office setting. One node was connected to a smart-phone using a USB adapter and acted as a bridge between the WSN equipped with 3D acceleration sensors were attached to coffee mugs (Smart Mugs) in a university and the smart-phone. The nodes sampled activity and context data at the mugs, processed this data to the d

  9. Comparison between active sensor and radiosonde cloud boundaries over the ARM Southern Great Plains site

    E-Print Network [OSTI]

    to test the strengths and limitations of cloud boundary retrievals from radiosonde profiles, 4 yearsComparison between active sensor and radiosonde cloud boundaries over the ARM Southern Great Plains radiosonde-based methods applied to 200 m resolution profiles obtained at the same site. The lidar

  10. Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors VICTOR of structural damage such as fatigue cracks and corrosion. Two main detection strategies are considered: (a) the wave propagation method for far-field damage detection; and (b) the electro-mechanical (E/M) impedance

  11. Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors VICTOR the onset and progress of structural damage such as fatigue cracks and corrosion. Two main detection strategies are considered: (a) the wave propagation method for far-field damage detection; and (b

  12. Tuned Lamb Wave Excitation and Detection with Piezoelectric Wafer Active Sensors for Structural Health Monitoring

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    and detect tuned Lamb waves for structural health monitoring is explored. First, a brief review of Lamb waves mode Lamb waves is demonstrated as an effective structural health monitoring method. Key Words: structural health monitoring, Lamb waves, piezoelectric wafer active sensors, aging aircraft, cracks, damage

  13. Piezoelectric Wafer Embedded Active Sensors for Aging Aircraft Structural Health Monitoring

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    41 Piezoelectric Wafer Embedded Active Sensors for Aging Aircraft Structural Health Monitoring ends with a conceptual design of a structural health monitoring system and suggestions for aging damage detection Á structural health monitoring Á failure prevention Á ultrasonics Á pulse-echo Á emitter

  14. BodyScope: A Wearable Acoustic Sensor for Activity Recognition

    E-Print Network [OSTI]

    Toronto, University of

    , speaking, laughing, and coughing. The F-measure of the Support Vector Machine classification of 12 of activities (e.g., eating, drinking, speaking, laughing and coughing) with BodyScope reveals that the system

  15. End-user modification and correction of home activity recognition

    E-Print Network [OSTI]

    Burns, Edward E. (Edward Eugene)

    2010-01-01

    Sensor-enabled computer systems capable of recognizing specific activities taking place in the home may enable a host of "context-aware" applications such as health monitoring, home automation, remote presence, and on-demand ...

  16. Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds

    DOE Patents [OSTI]

    Dinh, T.V.

    1996-06-11

    A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the light emitted from the complex will indicate the presence of the contaminant. A probe containing the photo-activator has an excitation light interface and a contaminant interface. One particular embodiment uses a porous membrane as the contaminant interface, so that the contaminant can migrate there through to the photo-activator and thereby form the complex. 23 figs.

  17. Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds

    DOE Patents [OSTI]

    Dinh, Tuan V. (Knoxville, TN)

    1996-01-01

    A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the light emitted from the complex will indicate the presence of the contaminant. A probe containing the photo-activator has an excitation light interface and a contaminant interface. One particular embodiment uses a porous membrane as the contaminant interface, so that the contaminant can migrate therethrough to the photo-activator and thereby form the complex.

  18. Active Control of Instabilities in Laminar BoundaryLayer Flow --Part II: Use of Sensors and Spectral Controller

    E-Print Network [OSTI]

    Erlebacher, Gordon

    Active Control of Instabilities in Laminar Boundary­Layer Flow -- Part II: Use of Sensors growth and stabilize the instabilities within the laminar boundary layer. This scenario is shown in Fig

  19. Interactive Visualization of Remote Sensing Data

    E-Print Network [OSTI]

    Blanz, Volker

    Interactive Visualization of Remote Sensing Data Interaktive Visualisierung von Fernerkundungsdaten alterungsbeständigem holz- und säurefreiem Papier. #12;Abstract Remote Sensing is an important tool for the analysis and spaceborne Remote Sensing systems produce a rapidly growing number of data sets, and improvements in sensor

  20. Sensor Network for Motor Energy Management | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sensor Network for Motor Energy Management Sensor Network for Motor Energy Management Remote Sensing Electric Motor Operation Optimizes Maintenance and Energy Efficiency Electric...

  1. Remote reset circuit

    DOE Patents [OSTI]

    Gritzo, Russell E. (West Melbourne, FL)

    1987-01-01

    A remote reset circuit acts as a stand-alone monitor and controller by clocking in each character sent by a terminal to a computer and comparing it to a given reference character. When a match occurs, the remote reset circuit activates the system's hardware reset line. The remote reset circuit is hardware based centered around monostable multivibrators and is unaffected by system crashes, partial serial transmissions, or power supply transients.

  2. Remote reset circuit

    DOE Patents [OSTI]

    Gritzo, R.E.

    1985-09-12

    A remote reset circuit acts as a stand-along monitor and controller by clocking in each character sent by a terminal to a computer and comparing it to a given reference character. When a match occurs, the remote reset circuit activates the system's hardware reset line. The remote reset circuit is hardware based centered around monostable multivibrators and is unaffected by system crashes, partial serial transmissions, or power supply transients. 4 figs.

  3. Self-activated ultrahigh chemosensitivity of oxide thin film nanostructures for transparent sensors

    E-Print Network [OSTI]

    Moon, Hi Gyu

    One of the top design priorities for semiconductor chemical sensors is developing simple, low-cost, sensitive and reliable sensors to be built in handheld devices. However, the need to implement heating elements in sensor ...

  4. U-081: McAfee SaaS 'myCIOScn.dll' ActiveX Control Lets Remote...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Remote Users Execute Arbitrary Code PLATFORM: McAfee ABSTRACT: A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's...

  5. Preserving Area Coverage in Wireless Sensor Networks by using

    E-Print Network [OSTI]

    Boyer, Edmond

    a studied phenomenon. Sensor nodes are deployed over hostile or remote environments to monitor a target area

  6. Remote Systems Design & Deployment

    SciTech Connect (OSTI)

    Bailey, Sharon A.; Baker, Carl P.; Valdez, Patrick LJ

    2009-08-28

    The Pacific Northwest National Laboratory (PNNL) was tasked by Washington River Protection Solutions, LLC (WRPS) to provide information and lessons learned relating to the design, development and deployment of remote systems, particularly remote arm/manipulator systems. This report reflects PNNL’s experience with remote systems and lays out the most important activities that need to be completed to successfully design, build, deploy and operate remote systems in radioactive and chemically contaminated environments. It also contains lessons learned from PNNL’s work experiences, and the work of others in the national laboratory complex.

  7. DIFFRACTION, REFRACTION, AND REFLECTION OF AN EXTREME-ULTRAVIOLET WAVE OBSERVED DURING ITS INTERACTIONS WITH REMOTE ACTIVE REGIONS

    SciTech Connect (OSTI)

    Shen Yuandeng; Liu Yu; Zhao Ruijuan; Tian Zhanjun; Su Jiangtao; Li Hui; Ichimoto, Kiyoshi; Shibata, Kazunari

    2013-08-20

    We present observations of the diffraction, refraction, and reflection of a global extreme-ultraviolet (EUV) wave propagating in the solar corona. These intriguing phenomena are observed when the wave interacts with two remote active regions, and together they exhibit properties of an EUV wave. When the wave approached AR11465, it became weaker and finally disappeared in the active region, but a few minutes later a new wavefront appeared behind the active region, and it was not concentric with the incoming wave. In addition, a reflected wave was also simultaneously observed on the wave incoming side. When the wave approached AR11459, it transmitted through the active region directly and without reflection. The formation of the new wavefront and the transmission could be explained with diffraction and refraction effects, respectively. We propose that the different behaviors observed during the interactions may be caused by different speed gradients at the boundaries of the two active regions. We find that the EUV wave formed ahead of a group of expanding loops a few minutes after the start of the loops' expansion, which represents the initiation of the associated coronal mass ejection (CME). Based on these results, we conclude that the EUV wave should be a nonlinear magnetosonic wave or shock driven by the associated CME, which propagated faster than the ambient fast mode speed and gradually slowed down to an ordinary linear wave. Our observations support the hybrid model that includes both fast wave and slow non-wave components.

  8. Remote actuated valve implant

    DOE Patents [OSTI]

    McKnight, Timothy E; Johnson, Anthony; Moise, Jr., Kenneth J; Ericson, Milton Nance; Baba, Justin S; Wilgen, John B; Evans, III, Boyd McCutchen

    2014-02-25

    Valve implant systems positionable within a flow passage, the systems having an inlet, an outlet, and a remotely activatable valve between the inlet and outlet, with the valves being operable to provide intermittent occlusion of the flow path. A remote field is applied to provide thermal or magnetic activation of the valves.

  9. T-615: IBM Rational System Architect ActiveBar ActiveX Control Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    There is a high risk security vulnerability with the ActiveBar ActiveX controls used by IBM Rational System Architect.

  10. Prototype Active Silicon Sensor in 150 nm HR-CMOS Technology for ATLAS Inner Detector Upgrade

    E-Print Network [OSTI]

    Rymaszewski, Piotr; Breugnon, Patrick; Godiot, Stépahnie; Gonella, Laura; Hemperek, Tomasz; Hirono, Toko; Hügging, Fabian; Krüger, Hans; Liu, Jian; Pangaud, Patrick; Peric, Ivan; Rozanov, Alexandre; Wang, Anqing; Wermes, Norbert

    2016-01-01

    The LHC Phase-II upgrade will lead to a significant increase in luminosity, which in turn will bring new challenges for the operation of inner tracking detectors. A possible solution is to use active silicon sensors, taking advantage of commercial CMOS technologies. Currently ATLAS R&D programme is qualifying a few commercial technologies in terms of suitability for this task. In this paper a prototype designed in one of them (LFoundry 150 nm process) will be discussed. The chip architecture will be described, including different pixel types incorporated into the design, followed by simulation and measurement results.

  11. Prototype Active Silicon Sensor in 150 nm HR-CMOS Technology for ATLAS Inner Detector Upgrade

    E-Print Network [OSTI]

    Piotr Rymaszewski; Marlon Barbero; Patrick Breugnon; Stépahnie Godiot; Laura Gonella; Tomasz Hemperek; Toko Hirono; Fabian Hügging; Hans Krüger; Jian Liu; Patrick Pangaud; Ivan Peric; Alexandre Rozanov; Anqing Wang; Norbert Wermes

    2016-01-04

    The LHC Phase-II upgrade will lead to a significant increase in luminosity, which in turn will bring new challenges for the operation of inner tracking detectors. A possible solution is to use active silicon sensors, taking advantage of commercial CMOS technologies. Currently ATLAS R&D programme is qualifying a few commercial technologies in terms of suitability for this task. In this paper a prototype designed in one of them (LFoundry 150 nm process) will be discussed. The chip architecture will be described, including different pixel types incorporated into the design, followed by simulation and measurement results.

  12. ERSDAC and Its ActivityERSDAC and Its ActivityERSDAC and Its Activity ERSDACERSDACEarth Remote Sensing Data Analysis Center, Tokyo, Japan

    E-Print Network [OSTI]

    Exploration and Exploitation · Monitoring , Management of Agriculture(rice, wheat) and Forestry. · Disaster and Reflection Radiometer) - NASA, U.S. - CERESCERES ((Clouds and the Earth's Radiant Energy System) MISRMISR) Remote Sensing Data Center Operation of ASTER "Ground Data System" (GDS) and PALSAR GDS · Production

  13. Remote Activation of ICs for Piracy Prevention and Digital Right Management

    E-Print Network [OSTI]

    Potkonjak, Miodrag

    ]. IC metering involves a set of security protocols that enables the design house to gain post-fabrication control through passive or active counts of produced ICs, through the monitoring of IC properties and use the watermarked IP. With passive metering, each IC is uniquely registered into a database, so a suspicious chip

  14. Renewable-reagent electrochemical sensor

    DOE Patents [OSTI]

    Wang, J.; Olsen, K.B.

    1999-08-24

    A new electrochemical probe(s) design allowing for continuous (renewable) reagent delivery is described. The probe comprises an integrated membrane sampling/electrochemical sensor that prevents interferences from surface-active materials and greatly extends the linear range. The probe(s) is useful for remote or laboratory-based monitoring in connection with microdialysis sampling and electrochemical measurements of metals and organic compounds that are not readily detected in the absence of reacting with the compound. Also disclosed is a method of using the probe(s). 19 figs.

  15. Renewable-reagent electrochemical sensor

    DOE Patents [OSTI]

    Wang, Joseph (Las Cruces, NM); Olsen, Khris B. (Richland, WA)

    1999-01-01

    A new electrochemical probe(s) design allowing for continuous (renewable) reagent delivery. The probe comprises an integrated membrane-sampling/electrochemical sensor that prevents interferences from surface-active materials and greatly extends the linear range. The probe(s) is useful for remote or laboratory-based monitoring in connection with microdialysis sampling and electrochemical measurements of metals and organic compounds that are not readily detected in the absence of reacting with the compound. Also disclosed is a method of using the probe(s).

  16. Application of piezoelectric active-sensors for SHM of wind turbine blades

    SciTech Connect (OSTI)

    Park, Gyuhae [Los Alamos National Laboratory; Taylor, Stuart G. [Los Alamos National Laboratory; Farinholt, Kevin M [Los Alamos National Laboratory; Farrar, Charles R [Los Alamos National Laboratory

    2010-10-04

    The goal of this study is to characterize the dynamic response of a CX-100 wind blade and the design parameters of SHM techniques as they apply to wind turbine blades, and to investigate the performance of high-frequency active-sensing SHM techniques, including lamb wave and frequency response functions, as a way to monitor the health of a wind turbine blade. The results of the dynamic characterization will be used to validate a numerical model and understand the effect of structural damage on the performance of the blades. The focus of SHM study is to assess and compare the performance of each method in identifying incipient damage, with a special consideration given to field deployability. For experiments, a 9-m CX-100 blade was used. Overall, the methods yielded sufficient damage detection to warrant further investigation into field deployment. This paper also summarizes the SHM results of a full-scale fatigue test of 9-m CX-100 blade using piezoelectric active-sensors.

  17. A Monolithic active pixel sensor for ionizing radiation using a 180nm HV-SOI process

    E-Print Network [OSTI]

    Tomasz Hemperek; Tetsuichi Kishishita; Hans Krüger; Norbert Wermes

    2015-02-23

    An improved SOI-MAPS (Silicon On Insulator Monolithic Active Pixel Sensor) for ionizing radiation based on thick-film High Voltage SOI technology (HV-SOI) has been developed. Similar to existing Fully Depleted SOI-based (FD-SOI) MAPS, a buried silicon oxide inter-dielectric (BOX) layer is used to separate the CMOS electronics from the handle wafer which is used as a depleted charge collection layer. FD-SOI MAPS suffer from radiation damage such as transistor threshold voltage shifts due to charge traps in the oxide layers and charge states created at the silicon oxide boundaries (back gate effect). The X-FAB 180-nm HV-SOI technology offers an additional isolation by deep non-depleted implant between the BOX layer and the active circuitry witch mitigates this problem. Therefore we see in this technology a high potential to implement radiation-tolerant MAPS with fast charge collection property. The design and measurement results from a first prototype are presented including charge collection in neutron irradiated samples.

  18. COMPRESSIVE PUSHBROOM AND WHISKBROOM SENSING FOR HYPERSPECTRAL REMOTE-SENSING IMAGING

    E-Print Network [OSTI]

    Fowler, James E.

    COMPRESSIVE PUSHBROOM AND WHISKBROOM SENSING FOR HYPERSPECTRAL REMOTE-SENSING IMAGING James E to the sensor. On the other hand, hyperspectral im- agery in remote-sensing applications is frequently acquired- ically, hyperspectral remote-sensing sensors are mounted on some type of airborne or satellite

  19. iCalm: Wearable Sensor and Network Architecture for Wirelessly Communicating and Logging Autonomic Activity

    E-Print Network [OSTI]

    Dobson, Kelly

    Widespread use of affective sensing in healthcare applications has been limited due to several practical factors, such as lack of comfortable wearable sensors, lack of wireless standards, and lack of low-power affordable ...

  20. Activity recognition in the home setting using simple and ubiquitous sensors

    E-Print Network [OSTI]

    Munguia Tapia, Emmanuel, 1978-

    2003-01-01

    During the past several years, researchers have demonstrated that when new wireless sensors are placed in the home environment, data collected from them can be used by software to automatically infer context, such as the ...

  1. Improved Design of Active Pixel CMOS Sensors for Charged Particle Detection

    SciTech Connect (OSTI)

    Deptuch, Grzegorz

    2007-11-12

    The Department of Energy (DOE) nuclear physics program requires developments in detector instrumentation electronics with improved energy, position and timing resolution, sensitivity, rate capability, stability, dynamic range, and background suppression. The current Phase-I project was focused on analysis of standard-CMOS photogate Active Pixel Sensors (APS) as an efficient solution to this challenge. The advantages of the CMOS APS over traditional hybrid approaches (i.e., separate detection regions bump-bonded to readout circuits) include greatly reduced cost, low power and the potential for vastly larger pixel counts and densities. However, challenges remain in terms of the signal-to-noise ratio (SNR) and readout speed (currently on the order of milliseconds), which is the major problem for this technology. Recent work has shown that the long readout time for photogate APS is due to the presence of (interface) traps at the semiconductor-oxide interface. This Phase-I work yielded useful results in two areas: (a) Advanced three-dimensional (3D) physics-based simulation models and simulation-based analysis of the impact of interface trap density on the transient charge collection characteristics of existing APS structures; and (b) Preliminary analysis of the feasibility of an improved photogate pixel structure (i.e., new APS design) with an induced electric field under the charge collecting electrode to enhance charge collection. Significant effort was dedicated in Phase-I to the critical task of implementing accurate interface trap models in CFDRC's NanoTCAD 3D semiconductor device-physics simulator. This resulted in validation of the new NanoTCAD models and simulation results against experimental (published) data, within the margin of uncertainty associated with obtaining device geometry, material properties, and experimentation details. Analyses of the new, proposed photogate APS design demonstrated several promising trends.

  2. On-Road Remote Sensing of Automobile Emissions in the Denver Area: Year 5,

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Denver Area: Year 5, January 2005 Gary A, Suite 140 Alpharetta, Georgia 30022 Contract No. E-23-9 #12;On-Road Remote Sensing of Automobile-day remote sensing study in the Denver, CO area in the winter of 2005. The remote sensor used in this study

  3. On-Road Remote Sensing of Automobile Emissions in the Denver Area: Year 4,

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Denver Area: Year 4, January 2003 Daniel A year of a multi-year remote sensing study in the Denver area. The remote sensor used in this study channel was somewhat significant. #12;On-Road Remote Sensing in the Denver Area: Year 4 2 INTRODUCTION

  4. Mini-lidar sensor for the remote stand-off sensing of chemical/biological substances and method for sensing same

    DOE Patents [OSTI]

    Ray, Mark D.; Sedlacek, Arthur J.

    2003-08-19

    A method and apparatus for remote, stand-off, and high efficiency spectroscopic detection of biological and chemical substances. The apparatus including an optical beam transmitter which transmits a beam having an axis of transmission to a target, the beam comprising at least a laser emission. An optical detector having an optical detection path to the target is provided for gathering optical information. The optical detection path has an axis of optical detection. A beam alignment device fixes the transmitter proximal to the detector and directs the beam to the target along the optical detection path such that the axis of transmission is within the optical detection path. Optical information gathered by the optical detector is analyzed by an analyzer which is operatively connected to the detector.

  5. Capacitive chemical sensor

    DOE Patents [OSTI]

    Manginell, Ronald P; Moorman, Matthew W; Wheeler, David R

    2014-05-27

    A microfabricated capacitive chemical sensor can be used as an autonomous chemical sensor or as an analyte-sensitive chemical preconcentrator in a larger microanalytical system. The capacitive chemical sensor detects changes in sensing film dielectric properties, such as the dielectric constant, conductivity, or dimensionality. These changes result from the interaction of a target analyte with the sensing film. This capability provides a low-power, self-heating chemical sensor suitable for remote and unattended sensing applications. The capacitive chemical sensor also enables a smart, analyte-sensitive chemical preconcentrator. After sorption of the sample by the sensing film, the film can be rapidly heated to release the sample for further analysis. Therefore, the capacitive chemical sensor can optimize the sample collection time prior to release to enable the rapid and accurate analysis of analytes by a microanalytical system.

  6. Monolithic fiber optic sensor assembly

    DOE Patents [OSTI]

    Sanders, Scott

    2015-02-10

    A remote sensor element for spectrographic measurements employs a monolithic assembly of one or two fiber optics to two optical elements separated by a supporting structure to allow the flow of gases or particulates therebetween. In a preferred embodiment, the sensor element components are fused ceramic to resist high temperatures and failure from large temperature changes.

  7. Active time scheduling for rechargeable sensor networks Volodymyr Pryyma, Damla Turgut and Ladislau Boloni

    E-Print Network [OSTI]

    Turgut, Damla

    a significant performance advantage. Key words: rechargeable, energy harvesting, sensor network 1. Introduction that energy is acquired through a solar cell, thus it is dependent on the weather (more exactly, the available, FL 32816­2362 Email: vpryyma,turgut,lboloni@eecs.ucf.edu Abstract Recent progress in energy

  8. Making Sensor Networks Accessible to Undergraduates Through Activity-Based Laboratory Materials

    E-Print Network [OSTI]

    Bulusu, Nirupama

    used the SunSPOT devices [1] which have been made publicly available by Sun Microsystems since April 2007. SunSPOTs are programmed in Java, relieving the necessity of students having to learn Tiny for a concentration on sensor network concepts such as localization, wireless communication, and power management

  9. Efficient Electromechanical (E/M) Impedance Measuring Method for Active Sensor Structural Health Monitoring

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    technique for structural health monitoring. The E/M impedance method utilizes as its main apparatus Fourier Transform, PWAS, impedance analyzer 1. INTRODUCTION Structural health monitoring (SHM) is a method International Symposium on NDE for Health Monitoring and Diagnostics, Sensors and Smart Structures Technologies

  10. Nanogenerator as an active sensor for vortex capture and ambient wind-velocity detection

    E-Print Network [OSTI]

    Wang, Zhong L.

    efficiently convert the vortex motion in the atmosphere into electricity. Based on the Karman vortex street in wireless environmental monitoring networks. 1. Introduction Self-powered nanosystem is a promising concept for the realization of environmental wireless sensor networks. Due to the enormous demands of distributed nodes

  11. Advanced Detector Research - Fabrication and Testing of 3D Active-Edge Silicon Sensors: High Speed, High Yield

    SciTech Connect (OSTI)

    Parker, Sherwood I

    2008-09-01

    Development of 3D silicon radiation sensors employing electrodes fabricated perpendicular to the sensor surfaces to improve fabrication yields and increasing pulse speeds.

  12. Remote Access

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProtonAbout UsRegionalScientific andRemote Access Remote

  13. Remote Connections

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProtonAbout UsRegionalScientific andRemote AccessRemote

  14. Application Independent Energy Efficient Data Aggregation in Wireless Sensor Networks

    E-Print Network [OSTI]

    Virmani, Deepali; Ghanshyam,; Ahlawat, Khyati; Noble,

    2012-01-01

    Wireless Sensor networks are dense networks of small, low-cost sensors, which collect and disseminate environmental data and thus facilitate monitoring and controlling of physical environment from remote locations with better accuracy. The major challenge is to achieve energy efficiency during the communication among the nodes. This paper aims at proposing a solution to schedule the node's activities to reduce the energy consumption. We propose the construction of a decentralized lifetime maximizing tree within clusters. We aim at minimizing the distance of transmission with minimization of energy consumption. The sensor network is distributed into clusters based on the close proximity of the nodes. Data transfer among the nodes is done with a hybrid technique of both TDMA/ FDMA which leads to efficient utilization of bandwidth and maximizing throughput.

  15. Evaluation of Compression of Remote Network Monitoring Data Streams

    E-Print Network [OSTI]

    Ioannidis, Sotiris

    network sensors but the need to track remote networks continues to grow. Where-ever there are remote applications require packet payload inspection. Such applications include pattern matching for IDS purposes and peer-top-peer traffic classification over port 80. Our goal is to reduce the amount of bandwidth

  16. Ris-R-1340(EN) Fundamentals for Remote Structural

    E-Print Network [OSTI]

    Risø-R-1340(EN) Fundamentals for Remote Structural Health Monitoring of Wind Turbine Blades for Remote Structural Health Monitoring of Wind Turbine Blades - a Preproject Annex A - Cost of embedded sensors for damage detection in large wind turbine blades - structural health monitoring - (in

  17. Sensor readout detector circuit

    DOE Patents [OSTI]

    Chu, D.D.; Thelen, D.C. Jr.

    1998-08-11

    A sensor readout detector circuit is disclosed that is capable of detecting sensor signals down to a few nanoamperes or less in a high (microampere) background noise level. The circuit operates at a very low standby power level and is triggerable by a sensor event signal that is above a predetermined threshold level. A plurality of sensor readout detector circuits can be formed on a substrate as an integrated circuit (IC). These circuits can operate to process data from an array of sensors in parallel, with only data from active sensors being processed for digitization and analysis. This allows the IC to operate at a low power level with a high data throughput for the active sensors. The circuit may be used with many different types of sensors, including photodetectors, capacitance sensors, chemically-sensitive sensors or combinations thereof to provide a capability for recording transient events or for recording data for a predetermined period of time following an event trigger. The sensor readout detector circuit has applications for portable or satellite-based sensor systems. 6 figs.

  18. Measurements on HV-CMOS Active Sensors After Irradiation to HL-LHC fluences

    E-Print Network [OSTI]

    B. Ristic; for the ATLAS CMOS pixel collaboration

    2015-01-13

    During the long shutdown (LS) 3 beginning 2022 the LHC will be upgraded for higher luminosities pushing the limits especially for the inner tracking detectors of the LHC experiments. In order to cope with the increased particle rate and radiation levels the ATLAS Inner Detector will be completely replaced by a purely silicon based one. Novel sensors based on HV-CMOS processes prove to be good candidates in terms of spatial resolution and radiation hardness. In this paper measurements conducted on prototypes built in the AMS H18 HV-CMOS process and irradiated to fluences of up to $2\\cdot10^{16}\\,\\text{n}_\\text{eq}\\text{cm}^{-2}$ are presented.

  19. On Using Weather Information for Efficient Remote Data Collection in WSN

    E-Print Network [OSTI]

    Son, Sang H.

    On Using Weather Information for Efficient Remote Data Collection in WSN Woochul Kang, John A|stankovic|son}@cs.virginia.edu ABSTRACT Even though real-time data access to remote sensor data is desirable for many WSN applications, collecting remote data reliably from a WSN is a challenging task since many components of the WSN are subject

  20. On-Road Remote Sensing of Automobile Emissions in the Los Angeles Area: Year 3

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Los Angeles Area: Year 3 (Riverside) Sajal S., Suite 140 Alpharetta, GA. 30022 Contract No. E-23-4 #12;On-Road Remote Sensing in the Los Angeles Area sensing study in the Los Angeles, CA area. The remote sensor used in this study is capable of measuring

  1. On-Road Remote Sensing of Automobile Emissions in the Los Angeles Area

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Los Angeles Area: Year 1 Gary A. Bishop a nine-day remote sensing study in the Los Angeles, CA area in the summer of 1999. The remote sensor used in this study exhibit a gamma distribution, with the dirtiest 10% of the fleet responsible for 70%, 53%, and 51

  2. On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 2

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 2 Sajal S. Pokharel, Gary in the Phoenix Area: Year 2 1 EXECUTIVE SUMMARY The University of Denver conducted a five-day remote sensing study in the Phoenix, AZ area in the fall of 1999. The remote sensor used in this study is capable

  3. On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 5,

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 5, November 2004 Gary A Emissions in the Phoenix Area: Year 5 1 EXECUTIVE SUMMARY The University of Denver conducted a five-day remote sensing study in the Phoenix, AZ area in the fall of 2004. The remote sensor used in this study

  4. On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 4,

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 4, November 2002 Gary A Sensing of Automobile Emissions in the Phoenix Area: Year 4 1 EXECUTIVE SUMMARY The University of Denver conducted a five-day remote sensing study in the Phoenix, AZ area in the fall of 2002. The remote sensor

  5. On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 3

    E-Print Network [OSTI]

    Denver, University of

    On-Road Remote Sensing of Automobile Emissions in the Phoenix Area: Year 3 Sajal S. Pokharel, Gary in the Phoenix Area: Year 3 1 EXECUTIVE SUMMARY The University of Denver conducted a five-day remote sensing study in the Phoenix, AZ area in the fall of 2000. The remote sensor used in this study is capable

  6. MULTIFUNCTIONAL VEHICLE STRUCTURAL HEALTH MONITORING OPPORTUNITIES WITH PIEZOELECTRIC WAFER ACTIVE SENSORS

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    MULTIFUNCTIONAL VEHICLE STRUCTURAL HEALTH MONITORING OPPORTUNITIES WITH PIEZOELECTRIC WAFER ACTIVE and the research needs are also discussed. INTRODUCTION Structural Health Monitoring is a major component of the remaining structural life. For the health monitoring of an actual structure, networks of embedded active

  7. Remote Sensing Laboratory - RSL

    SciTech Connect (OSTI)

    2014-11-06

    One of the primary resources supporting homeland security is the Remote Sensing Laboratory, or RSL. The Laboratory creates advanced technologies for emergency response operations, radiological incident response, and other remote sensing activities. RSL emergency response teams are on call 24-hours a day, and maintain the capability to deploy domestically and internationally in response to threats involving the loss, theft, or release of nuclear or radioactive material. Such incidents might include Nuclear Power Plant accidents, terrorist incidents involving nuclear or radiological materials, NASA launches, and transportation accidents involving nuclear materials. Working with the US Department of Homeland Security, RSL personnel equip, maintain, and conduct training on the mobile detection deployment unit, to provide nuclear radiological security at major national events such as the super bowl, the Indianapolis 500, New Year's Eve celebrations, presidential inaugurations, international meetings and conferences, just about any event where large numbers of people will gather.

  8. Remote Sensing Laboratory - RSL

    ScienceCinema (OSTI)

    None

    2015-01-09

    One of the primary resources supporting homeland security is the Remote Sensing Laboratory, or RSL. The Laboratory creates advanced technologies for emergency response operations, radiological incident response, and other remote sensing activities. RSL emergency response teams are on call 24-hours a day, and maintain the capability to deploy domestically and internationally in response to threats involving the loss, theft, or release of nuclear or radioactive material. Such incidents might include Nuclear Power Plant accidents, terrorist incidents involving nuclear or radiological materials, NASA launches, and transportation accidents involving nuclear materials. Working with the US Department of Homeland Security, RSL personnel equip, maintain, and conduct training on the mobile detection deployment unit, to provide nuclear radiological security at major national events such as the super bowl, the Indianapolis 500, New Year's Eve celebrations, presidential inaugurations, international meetings and conferences, just about any event where large numbers of people will gather.

  9. Remote Sensing of Natural Areas: Procedures and Considerations for

    E-Print Network [OSTI]

    be used for detecting vegetation stress and pollution. Remote sensing can be used for more far-rang- ing, land development, and erosion in natural areas. As with stress detection and pollution, the data to the sensor. A brightness value of 0 means that sensor recorded no light from an area, or that light levels

  10. Pipeline Structural Health Monitoring Using Macro-fiber Composite Active Sensors

    SciTech Connect (OSTI)

    A.B. Thien

    2006-03-01

    The United States economy is heavily dependent upon a vast network of pipeline systems to transport and distribute the nation's energy resources. As this network of pipelines continues to age, monitoring and maintaining its structural integrity remains essential to the nation's energy interests. Numerous pipeline accidents over the past several years have resulted in hundreds of fatalities and billions of dollars in property damages. These accidents show that the current monitoring methods are not sufficient and leave a considerable margin for improvement. To avoid such catastrophes, more thorough methods are needed. As a solution, the research of this thesis proposes a structural health monitoring (SHM) system for pipeline networks. By implementing a SHM system with pipelines, their structural integrity can be continuously monitored, reducing the overall risks and costs associated with current methods. The proposed SHM system relies upon the deployment of macro-fiber composite (MFC) patches for the sensor array. Because MFC patches are flexible and resilient, they can be permanently mounted to the curved surface of a pipeline's main body. From this location, the MFC patches are used to monitor the structural integrity of the entire pipeline. Two damage detection techniques, guided wave and impedance methods, were implemented as part of the proposed SHM system. However, both techniques utilize the same MFC patches. This dual use of the MFC patches enables the proposed SHM system to require only a single sensor array. The presented Lamb wave methods demonstrated the ability to correctly identify and locate the presence of damage in the main body of the pipeline system, including simulated cracks and actual corrosion damage. The presented impedance methods demonstrated the ability to correctly identify and locate the presence of damage in the flanged joints of the pipeline system, including the loosening of bolts on the flanges. In addition to damage to the actual pipeline itself, the proposed methods were used to demonstrate the capability of detecting deposits inside of pipelines. Monitoring these deposits can prevent clogging and other hazardous situations. Finally, suggestions are made regarding future research issues which are needed to advance this research. Because the research of this thesis has only demonstrated the feasibility of the techniques for such a SHM system, these issues require attention before any commercial applications can be realized.

  11. BScope: A Scalable, Run-Time Architecture for Activity Recognition Using Wireless Sensor Networks

    E-Print Network [OSTI]

    Teixeira, Thiago

    be con- nected together into hierarchies to provide even more com- plex interpretations. The power are used to generate summaries of daily activities and to trigger various levels of alarms as well as cell-phone

  12. Mitigating container security risk using real-time monitoring with active Radio Frequency Identification and sensors

    E-Print Network [OSTI]

    Schlesinger, Adam Ian

    2005-01-01

    The global village in which we live enables increased trade and commerce across regions but also brings a complicated new set of challenges such as terrorist activity, human and drug smuggling and theft in foreign or ...

  13. CMOS Photodiodes with Substrate Openings for Higher Conversion Gain in Active Pixel Sensors

    E-Print Network [OSTI]

    Hornsey, Richard

    . Lee, R. I. Hornsey Dept. of Electrical and Computer Engineering, University of Waterloo, Ontario by a source-follower; the capacitance of the device determines the conversion gain. In the case of CMOS active

  14. Ultra-wideband radar sensors and networks

    DOE Patents [OSTI]

    Leach, Jr., Richard R; Nekoogar, Faranak; Haugen, Peter C

    2013-08-06

    Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a heart and respiration monitor combined with the motion sensor further improves discrimination.

  15. Revealing Protocol Information and Activity from Energy Instrumentation in Wireless Sensor

    E-Print Network [OSTI]

    Gnawali, Omprakash

    of features based on various aspects of energy data and use those features to classify and reveal network based on energy data by doing extensive experiments on three WSN testbeds. Our results from analyzing four-million energy data and ra- dio activity points, indicate that energy instrumentation

  16. Are Wireless Sensors and Controls Ready for the Building Automation Industry? Selected Case Studies and Technology Development Activities

    SciTech Connect (OSTI)

    Kintner-Meyer, Michael CW; Brambley, Michael R.

    2006-09-13

    This paper discusses whether or not today’s wireless sensors are ready for building controls and energy efficiency monitoring applications.

  17. In Situ Decommissioning Sensor Network, Meso-Scale Test Bed - Phase 3 Fluid Injection Test Summary Report

    SciTech Connect (OSTI)

    Serrato, M. G.

    2013-09-27

    The DOE Office of Environmental management (DOE EM) faces the challenge of decommissioning thousands of excess nuclear facilities, many of which are highly contaminated. A number of these excess facilities are massive and robust concrete structures that are suitable for isolating the contained contamination for hundreds of years, and a permanent decommissioning end state option for these facilities is in situ decommissioning (ISD). The ISD option is feasible for a limited, but meaningfull number of DOE contaminated facilities for which there is substantial incremental environmental, safety, and cost benefits versus alternate actions to demolish and excavate the entire facility and transport the rubble to a radioactive waste landfill. A general description of an ISD project encompasses an entombed facility; in some cases limited to the blow-grade portion of a facility. However, monitoring of the ISD structures is needed to demonstrate that the building retains its structural integrity and the contaminants remain entombed within the grout stabilization matrix. The DOE EM Office of Deactivation and Decommissioning and Facility Engineering (EM-13) Program Goal is to develop a monitoring system to demonstrate long-term performance of closed nuclear facilities using the ISD approach. The Savannah River National Laboratory (SRNL) has designed and implemented the In Situ Decommissioning Sensor Network, Meso-Scale Test Bed (ISDSN-MSTB) to address the feasibility of deploying a long-term monitoring system into an ISD closed nuclear facility. The ISDSN-MSTB goal is to demonstrate the feasibility of installing and operating a remote sensor network to assess cementitious material durability, moisture-fluid flow through the cementitious material, and resulting transport potential for contaminate mobility in a decommissioned closed nuclear facility. The original ISDSN-MSTB installation and remote sensor network operation was demonstrated in FY 2011-12 at the ISDSN-MSTB test cube located at the Florida International University Applied Research Center, Miami, FL (FIU-ARC). A follow-on fluid injection test was developed to detect fluid and ion migration in a cementitious material/grouted test cube using a limited number of existing embedded sensor systems. This In Situ Decommissioning Sensor Network, Meso-Scale Test Bed (ISDSN-MSTB) - Phase 3 Fluid Injection Test Summary Report summarizes the test implementation, acquired and processed data, and results from the activated embedded sensor systems used during the fluid injection test. The ISDSN-MSTB Phase 3 Fluid Injection Test was conducted from August 27 through September 6, 2013 at the FIU-ARC ISDSN-MSTB test cube. The fluid injection test activated a portion of the existing embedded sensor systems in the ISDSN-MSTB test cube: Electrical Resistivity Tomography-Thermocouple Sensor Arrays, Advance Tensiometer Sensors, and Fiber Loop Ringdown Optical Sensors. These embedded sensor systems were activated 15 months after initial placement. All sensor systems were remotely operated and data acquisition was completed through the established Sensor Remote Access System (SRAS) hosted on the DOE D&D Knowledge Management Information Tool (D&D DKM-IT) server. The ISDN Phase 3 Fluid Injection Test successfully demonstrated the feasibility of embedding sensor systems to assess moisture-fluid flow and resulting transport potential for contaminate mobility through a cementitious material/grout monolith. The ISDSN embedded sensor systems activated for the fluid injection test highlighted the robustness of the sensor systems and the importance of configuring systems in-depth (i.e., complementary sensors and measurements) to alleviate data acquisition gaps.

  18. "Non-Reflective" Boundary Design via Remote Sensing and PID Control Valve

    SciTech Connect (OSTI)

    Zhang, Qin Fen; Karney, Professor Byran W.; Pejovic, Dr. Stanislav

    2011-01-01

    This paper develops the concept of a nonreflective (or semireflective) boundary condition using the combination of a remote sensor and a control system to modulate a relief valve. The essential idea is to sense the pressure change at a remote location and then to use the measured data to adjust the opening of an active control valve at the end of the line to eliminate or attenuate the wave reflections at the valve, thus controlling system transient pressures. This novel idea is shown here through numerical simulation to have considerable potential for transient protection. Using this model, wave reflections and resonance can be effectively eliminated for frictionless pipelines or initial no-flow conditions and can be better controlled in more realistic pipelines for a range of transient disturbances. In addition, the features of even-order harmonics and nonreflective boundary conditions during steady oscillation, obtained through time domain transient analysis, are verified by hydraulic impedance analysis in the frequency domain.

  19. Sensing remote nuclear spins

    E-Print Network [OSTI]

    Nan Zhao; Jan Honert; Berhard Schmid; Junichi Isoya; Mathew Markham; Daniel Twitchen; Fedor Jelezko; Ren-Bao Liu; Helmut Fedder; Jörg Wrachtrup

    2012-04-29

    Sensing single nuclear spins is a central challenge in magnetic resonance based imaging techniques. Although different methods and especially diamond defect based sensing and imaging techniques in principle have shown sufficient sensitivity, signals from single nuclear spins are usually too weak to be distinguished from background noise. Here, we present the detection and identification of remote single C-13 nuclear spins embedded in nuclear spin baths surrounding a single electron spins of a nitrogen-vacancy centre in diamond. With dynamical decoupling control of the centre electron spin, the weak magnetic field ~10 nT from a single nuclear spin located ~3 nm from the centre with hyperfine coupling as weak as ~500 Hz is amplified and detected. The quantum nature of the coupling is confirmed and precise position and the vector components of the nuclear field are determined. Given the distance over which nuclear magnetic fields can be detected the technique marks a firm step towards imaging, detecting and controlling nuclear spin species external to the diamond sensor.

  20. High aspect ratio, remote controlled pumping assembly

    DOE Patents [OSTI]

    Brown, S.B.; Milanovich, F.P.

    1995-11-14

    A miniature dual syringe-type pump assembly is described which has a high aspect ratio and which is remotely controlled, for use such as in a small diameter penetrometer cone or well packer used in water contamination applications. The pump assembly may be used to supply and remove a reagent to a water contamination sensor, for example, and includes a motor, gearhead and motor encoder assembly for turning a drive screw for an actuator which provides pushing on one syringe and pulling on the other syringe for injecting new reagent and withdrawing used reagent from an associated sensor. 4 figs.

  1. High aspect ratio, remote controlled pumping assembly

    DOE Patents [OSTI]

    Brown, Steve B. (Livermore, CA); Milanovich, Fred P. (Lafayette, CA)

    1995-01-01

    A miniature dual syringe-type pump assembly which has a high aspect ratio and which is remotely controlled, for use such as in a small diameter penetrometer cone or well packer used in water contamination applications. The pump assembly may be used to supply and remove a reagent to a water contamination sensor, for example, and includes a motor, gearhead and motor encoder assembly for turning a drive screw for an actuator which provides pushing on one syringe and pulling on the other syringe for injecting new reagent and withdrawing used reagent from an associated sensor.

  2. Sensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal Scheduling of Sensor Trees

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    in such a way that the total energy usage of the active sensor nodes in the tree is minimized. However whenSensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal, node energy, etc), the collected data are transmitted to their final destination, usually a fusion

  3. Energy-Efficient Target Coverage in Wireless Sensor Networks

    E-Print Network [OSTI]

    Cardei, Mihaela

    successively. Only the sensors from the current active set are responsible for monitoring all targets

  4. RemoteEyes: A Remote Low-Cost Position Sensing Infrastructure for Ubiquitous Computing

    E-Print Network [OSTI]

    British Columbia, University of

    RemoteEyes: A Remote Low-Cost Position Sensing Infrastructure for Ubiquitous Computing Changsong infrastructure for ubiquitous computing. To reduce the cost, each tracked object carries an inexpensive active, sensing, network, FPGA, ubiquitous computing INTRODUCTION Context information is required by many

  5. Advanced sensors

    SciTech Connect (OSTI)

    Elliot, T.C.

    1994-08-01

    This article examines how advances in sensor technology are beginning to close the gap with advances in other parts of the control and sensing loops; these advances are needed to more easily meet new EPA regulations and demand for more efficient power plant operation. Topics of the article include fiberoptic sensors, sensors for the air side of the plant, and water side sensors.

  6. Current sensor

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul; Brubaker, Michael Allen; Yakymyshyn, Pamela Jane

    2007-01-16

    A current sensor is described that uses a plurality of magnetic field sensors positioned around a current carrying conductor. The sensor can be hinged to allow clamping to a conductor. The current sensor provides high measurement accuracy for both DC and AC currents, and is substantially immune to the effects of temperature, conductor position, nearby current carrying conductors and aging.

  7. Secure Code Distribution in Dynamically Programmable Wireless Sensor Networks

    E-Print Network [OSTI]

    Han, Richard Y.

    , remote wireless reprogramming of deployed sensor nodes that may be spread out over rugged terrain is far of semiconductor fabrication labs or oil tankers [3], code updates must be verified to en- sure that catastrophic

  8. Lessons from UNSCOM and IAEA regarding remote monitoring and air sampling

    SciTech Connect (OSTI)

    Dupree, S.A.

    1996-01-01

    In 1991, at the direction of the United Nations Security Council, UNSCOM and IAEA developed plans for On-going Monitoring and Verification (OMV) in Iraq. The plans were accepted by the Security Council and remote monitoring and atmospheric sampling equipment has been installed at selected sites in Iraq. The remote monitoring equipment consists of video cameras and sensors positioned to observe equipment or activities at sites that could be used to support the development or manufacture of weapons of mass destruction, or long-range missiles. The atmospheric sampling equipment provides unattended collection of chemical samples from sites that could be used to support the development or manufacture of chemical weapon agents. To support OMV in Iraq, UNSCOM has established the Baghdad Monitoring and Verification Centre. Imagery from the remote monitoring cameras can be accessed in near-real time from the Centre through RIF communication links with the monitored sites. The OMV program in Iraq has implications for international cooperative monitoring in both global and regional contexts. However, monitoring systems such as those used in Iraq are not sufficient, in and of themselves, to guarantee the absence of prohibited activities. Such systems cannot replace on-site inspections by competent, trained inspectors. However, monitoring similar to that used in Iraq can contribute to openness and confidence building, to the development of mutual trust, and to the improvement of regional stability.

  9. Fusion of Electromyographic Signals with Proprioceptive Sensor Data in Myoelectric Pattern Recognition for Control of Active Transfemoral Leg Prostheses

    E-Print Network [OSTI]

    Carvalho, João Luiz

    Fusion of Electromyographic Signals with Proprioceptive Sensor Data in Myoelectric Pattern on electromyographic data. The use of surface electromyographic signals and additional information related Nknj ekX N nc (1) Assuming that electromyographic signals can be approximated by a normal distribution

  10. Frequency Modulation Spectroscopy Modeling for Remote Chemical Detection

    SciTech Connect (OSTI)

    Sheen, David M.

    2000-09-30

    Frequency modulation (FM) spectroscopy techniques show promise for active infrared remote chemical sensing. FM spectroscopy techniques have reduced sensitivity to optical and electronic noise, and are relatively immune to the effects of various electronic and mechanical drifts. FM systems are responsive to sharp spectral features and can therefore reduce the effects of spectral clutter due to interfering chemicals in the plume or in the atmosphere. The relatively high modulation frequencies used for FM also reduces the effects of albedo (reflectance) and plume variations. Conventional differential absorption lidar (DIAL) systems are performance limited by the noise induced by speckle. Analysis presented in this report shows that FM based sensors may reduce the effects of speckle by one to two orders of magnitude. This can result in reduced dwell times and faster area searches, as well as reducing various forms of spatial clutter. FM systems will require a laser system that is continuously tunable at relatively high frequencies (0.1 to 20 MHz). One promising candidate is the quantum-cascade (QC) laser [1, 2]. The QC laser is potentially capable of power levels on the order of 1 Watt and frequency tuning on the order of 3 - 6 GHz, which is the performance level required for FM spectroscopy based remote sensing. In this report we describe a high-level numerical model for an FM spectroscopy based remote sensing system, and application to two unmanned airborne vehicle (UAV) scenarios. A Predator scenario operating at a slant range of 6.5 km with a 10 cm diameter telescope, and a Global Hawk scenario operating at a range of 30 km with a 20 cm diameter telescope, has been assumed to allow estimation of the performance of potential FM systems.

  11. Remote sensing, imaging, and signal engineering

    SciTech Connect (OSTI)

    Brase, J.M.

    1993-03-01

    This report discusses the Remote Sensing, Imaging, and Signal Engineering (RISE) trust area which has been very active in working to define new directions. Signal and image processing have always been important support for existing programs at Lawrence Livermore National Laboratory (LLNL), but now these technologies are becoming central to the formation of new programs. Exciting new applications such as high-resolution telescopes, radar remote sensing, and advanced medical imaging are allowing us to participate in the development of new programs.

  12. Remote Sensing of NO and NO2 Emissions from Heavy-Duty Diesel

    E-Print Network [OSTI]

    Jimenez, Jose-Luis

    Research Remote Sensing of NO and NO2 Emissions from Heavy-Duty Diesel Trucks Using Tunable Diode to measure the NOx emissions of heavy-duty diesel trucks (HDDTs). The remote sensor could operate tightly controlled, the relative importance of heavy-duty diesel trucks (HDDTs) as a NOx source has

  13. Vibration detection in turbomachinery using non-contacting sensors

    E-Print Network [OSTI]

    Cohen, Eric D., M. Eng. Massachusetts Institute of Technology

    2006-01-01

    Recent developments have seen the introduction of multiple Eddy Current Sensors (ECS) into turbomachinery. These sensors employ an active magnetic field to monitor each blade as it passes the sensor. They generate an ...

  14. Electrocatalytic cermet sensor

    DOE Patents [OSTI]

    Shoemaker, E.L.; Vogt, M.C.

    1998-06-30

    A sensor is described for O{sub 2} and CO{sub 2} gases. The gas sensor includes a plurality of layers driven by a cyclic voltage to generate a unique plot characteristic of the gas in contact with the sensor. The plurality of layers includes an alumina substrate, a reference electrode source of anions, a lower electrical reference electrode of Pt coupled to the reference source of anions, a solid electrolyte containing tungsten and coupled to the lower reference electrode, a buffer layer for preventing flow of Pt ions into the solid electrolyte and an upper catalytically active Pt electrode coupled to the buffer layer. 16 figs.

  15. RADIOACTIVE MATERIALS SENSORS

    SciTech Connect (OSTI)

    Mayo, Robert M.; Stephens, Daniel L.

    2009-09-15

    Providing technical means to detect, prevent, and reverse the threat of potential illicit use of radiological or nuclear materials is among the greatest challenges facing contemporary science and technology. In this short article, we provide brief description and overview of the state-of-the-art in sensor development for the detection of radioactive materials, as well as an identification of the technical needs and challenges faced by the detection community. We begin with a discussion of gamma-ray and neutron detectors and spectrometers, followed by a description of imaging sensors, active interrogation, and materials development, before closing with a brief discussion of the unique challenges posed in fielding sensor systems.

  16. Electrocatalytic cermet sensor

    DOE Patents [OSTI]

    Shoemaker, Erika L. (Westmont, IL); Vogt, Michael C. (Westmont, IL)

    1998-01-01

    A sensor for O.sub.2 and CO.sub.2 gases. The gas sensor includes a plurality of layers driven by a cyclic voltage to generate a unique plot characteristic of the gas in contact with the sensor. The plurality of layers includes an alumina substrate, a reference electrode source of anions, a lower electrical reference electrode of Pt coupled to the reference source of anions, a solid electrolyte containing tungsten and coupled to the lower reference electrode, a buffer layer for preventing flow of Pt ions into the solid electrolyte and an upper catalytically active Pt electrode coupled to the buffer layer.

  17. Millimeter wave sensor for monitoring effluents

    DOE Patents [OSTI]

    Gopalsami, Nachappa (Naperville, IL); Bakhtiari, Sasan (Bolingbrook, IL); Raptis, Apostolos C. (Downers Grove, IL); Dieckman, Stephen L. (Downers Grove, IL)

    1995-01-01

    A millimeter-wave sensor for detecting and measuring effluents from processing plants either remotely or on-site includes a high frequency signal source for transmitting frequency-modulated continuous waves in the millimeter or submillimeter range with a wide sweep capability and a computer-controlled detector for detecting a plurality of species of effluents on a real time basis. A high resolution spectrum of an effluent, or effluents, is generated by a deconvolution of the measured spectra resulting in a narrowing of the line widths by 2 or 3 orders of magnitude as compared with the pressure broadened spectra detected at atmospheric pressure for improved spectral specificity and measurement sensitivity. The sensor is particularly adapted for remote monitoring such as where access is limited or sensor cost restricts multiple sensors as well as for large area monitoring under nearly all weather conditions.

  18. Remote Monitoring Transparency Program

    SciTech Connect (OSTI)

    Sukhoruchkin, V.K.; Shmelev, V.M.; Roumiantsev, A.N.; Croessmann, C.D.; Horton, R.D.; Matter, J.C.; Czajkowski, A.F.; Sheely, K.B.; Bieniawski, A.J.

    1996-12-31

    The objective of the Remote Monitoring Transparency Program is to evaluate and demonstrate the use of remote monitoring technologies to advance nonproliferation and transparency efforts that are currently being developed by Russia and the US without compromising the national security of the participating parties. Under a lab-to-lab transparency contract between Sandia National Laboratories (SNL) and the Kurchatov Institute (KI RRC), the Kurchatov Institute will analyze technical and procedural aspects of the application of remote monitoring as a transparency measure to monitor inventories of direct-use HEU and plutonium (e.g., material recovered from dismantled nuclear weapons). A goal of this program is to assist a broad range of political and technical experts in learning more about remote monitoring technologies that could be used to implement nonproliferation, arms control, and other security and confidence building measures. Specifically, this program will: (1) begin integrating Russian technologies into remote monitoring systems; (2) develop remote monitoring procedures that will assist in the application of remote monitoring techniques to monitor inventories of HEU and Pu from dismantled nuclear weapons; and (3) conduct a workshop to review remote monitoring fundamentals, demonstrate an integrated US/Russian remote monitoring will have on the national security of participating countries.

  19. REMOTE SENSING OF SAGEBRUSH COMMUNITY STRUCTURAL PATTERNS ACROSS SCALES

    E-Print Network [OSTI]

    Ramsey, R. Douglas

    projects is often limited. This research evaluated the ability of a suite of airborne and satellite imagery infrared (CIR) aerial photography, panchromatic, and multi-spectral satellite imagery, including data from rangeland managers, wildlife biologists, or other remote sensors, specifically when decisions related

  20. Applications of Remote Sensing to Study Climate Change

    E-Print Network [OSTI]

    Gilbes, Fernando

    of the moon surface in order to make lunar maps. · Apollo 8 took the first photos of the Earth from space. #12 data provided a better understanding of our planet, including land used and land cover, urban by current remote sensors is the electromagnetic energy emanating from the object of interest

  1. Remote Monitoring of Resin Transfer Molding Processes by Distributed

    E-Print Network [OSTI]

    Mamishev, Alexander

    . In order to manufacture defect-free parts with consistent material properties, it is important to monitorRemote Monitoring of Resin Transfer Molding Processes by Distributed Dielectric Sensors MICHAEL C, 2003) (Accepted November 8, 2004) ABSTRACT: Feed-forward adaptive control of resin transfer molding

  2. SpecNet Revisited: Bridging Flux and Remote Sensing Communities

    E-Print Network [OSTI]

    Coburn, Craig

    as a Working Group in 2003 with the goals of integrating remote sensing with biosphere-atmosphere carbon flux-effective technologies, improving the light-use efficiency model of carbon dioxide flux, consideration of view gases in addition to carbon dioxide, adoption of standardized and automated field sensors and sampling

  3. ydrocarbon detector for the remote sensing of vehicle exhaust emissions

    E-Print Network [OSTI]

    Denver, University of

    1994) A new remote sensor for measuring on-road carbon monoxide, carbon dioxide, and hydrocarbon the capability for measuring exhaust hydrocarbons and eliminates the need for liquid-nitrogen-cooled detectors important to the measurement of exhaust hydrocarbons are reported. The water vapor present in all auto

  4. An evaluation of alternate remote sensing products for forest inventory, monitoring, and

    E-Print Network [OSTI]

    Lefsky, Michael

    and related attributes at a regional scale. Several sensors were evaluated, including (i) single date Landsat), a lidar sensor that di- rectly measures the height and canopy structure of forest vegetation. To evaluateAn evaluation of alternate remote sensing products for forest inventory, monitoring, and mapping

  5. Evaluation of Remote Sensing Technologies for the Identification of Oceanographic Features Critical to Pelagic

    E-Print Network [OSTI]

    Hawai'i at Manoa, University of

    Evaluation of Remote Sensing Technologies for the Identification of Oceanographic Features Critical on data from two satellite sensors: the altimeter aboard TOPEX/POSEIDON and SeaWiFs ocean color to examine sensors detect biological change in mid-latitude North Pacific, 1997-2000. EOS, The American Geophysical

  6. Modeling Wildland Fire Radiance in Synthetic Remote Sensing B.S. Beijing Institute of Technology, 1996

    E-Print Network [OSTI]

    Salvaggio, Carl

    efforts in phenomenology studies, algorithm development, and sensor evaluation. Synthetic scenes are also and op- tical properties of wildfire and burn area in an infrared remote sensing system will assist look like as seen by the airborne sensor. Radiance scene rendering of the 3D flame iv #12;v includes 2D

  7. Vacuum Vessel Remote Handling

    E-Print Network [OSTI]

    FIRE Vacuum Vessel and Remote Handling Overview B. Nelson, T. Burgess, T. Brown, H-M Fan, G. Jones #12;13 July 2002 Snowmass Review: FIRE Vacuum Vessel and Remote Handling 2 Presentation Outline · Vacuum Vessel - Design requirements - Design concept and features - Analysis to date - Status and summary

  8. With the development of the MEMS technology and of wireless networking, the sensor network area has been an active field of research in the last five years. Sensor network

    E-Print Network [OSTI]

    of the sensor networks is energy as the nodes are powered with non renewable batteries, and numerous techniques, Anna, Anja og Troels who have given me the motivation to complete the project. I also thank my friends.4 Motivation for Sensor N

  9. REMOTE SENSING OF THE ENVIRONMENT

    E-Print Network [OSTI]

    Gilbes, Fernando

    1 CHAPTER 1: REMOTE SENSING OF THE ENVIRONMENT REFERENCE: Remote Sensing of the Environment John R. Jensen (2007) Second Edition Pearson Prentice Hall What is Remote Sensing? #12;2 Photogrammetry ­ the art of identifying objects and judging their significance (Colwell, 1966). Remote Sensing ­ the measurement

  10. Chemical sensors

    DOE Patents [OSTI]

    Lowell, J.R. Jr.; Edlund, D.J.; Friesen, D.T.; Rayfield, G.W.

    1991-07-02

    Sensors responsive to small changes in the concentration of chemical species are disclosed. The sensors comprise a mechanochemically responsive polymeric film capable of expansion or contraction in response to a change in its chemical environment. They are operatively coupled to a transducer capable of directly converting the expansion or contraction to a measurable electrical response. 9 figures.

  11. Envlron. Sci. Technol. 1993, 27, 1885-1891 On-Road Hydrocarbon Remote Sensing in the Denver Area

    E-Print Network [OSTI]

    Denver, University of

    of Denver's remote sensor for on-road motor vehicle carbon monoxide (CO) and hydrocarbon (HC thecarbonmonoxidetocarbon dioxide ratio (CO/COz) and the hydrocarbon to carbon dioxide ratio (HC/C02) in the exhaust of anyEnvlron. Sci. Technol. 1993, 27, 1885-1891 On-Road Hydrocarbon Remote Sensing in the Denver Area Yi

  12. IMPROVED MICROWAVE REMOTE SENSING OF HURRICANE WIND SPEED AND RAIN RATES USING THE HURRICANE IMAGING RADIOMETER (HIRAD)

    E-Print Network [OSTI]

    Ruf, Christopher

    IMPROVED MICROWAVE REMOTE SENSING OF HURRICANE WIND SPEED AND RAIN RATES USING THE HURRICANE@mail.ucf.edu ABSTRACT The Hurricane Imaging Radiometer (HIRAD) is a new imaging technology microwave remote sensor for hurricane observations that is currently under development by NASA Marshall Space Flight Center

  13. Annotating Smart Environment Sensor Data for Activity Learning S. Szewcyzk, K. Dwan, B. Minor, B.Swedlove, and D. Cook

    E-Print Network [OSTI]

    Cook, Diane J.

    in smart homes offer unprecedented opportunities for providing health monitoring and assistance of smart home residents, we need to design technologies that recognize and track the activities that people the smart home resident, and is often inaccurate. Therefore, in this paper we investigate four alternative

  14. Sensor Relocation with Mobile Sensors:Sensor Relocation with Mobile Sensors: Design,Design,

    E-Print Network [OSTI]

    Schindelhauer, Christian

    Sensor Relocation with Mobile Sensors:Sensor Relocation with Mobile Sensors: Design,Design, Implementation, and EvaluationImplementation, and Evaluation Jie Teng, Tim Bolbrock, Guohong Cao, and Tom La of Freiburg #12;OverviewOverview · Sensor networks · mobile sensor · mobile robot · Mote · sensor relocation

  15. Development of software architecture for environmental monitoring using wireless sensor networks

    E-Print Network [OSTI]

    Hari, Piyush

    2006-01-01

    In this thesis, I describe the development of the software architecture for temperature monitoring using Wireless Sensor Networks (WSN). The goal of the software is to provide a means to remotely monitor and analyze ...

  16. Novel Sensor for the In Situ Measurement of Uranium Fluxes

    SciTech Connect (OSTI)

    Hatfield, Kirk

    2015-02-10

    The goal of this project was to develop a sensor that incorporates the field-tested concepts of the passive flux meter to provide direct in situ measures of flux for uranium and groundwater in porous media. Measurable contaminant fluxes [J] are essentially the product of concentration [C] and groundwater flux or specific discharge [q ]. The sensor measures [J] and [q] by changes in contaminant and tracer amounts respectively on a sorbent. By using measurement rather than inference from static parameters, the sensor can directly advance conceptual and computational models for field scale simulations. The sensor was deployed in conjunction with DOE in obtaining field-scale quantification of subsurface processes affecting uranium transport (e.g., advection) and transformation (e.g., uranium attenuation) at the Rifle IFRC Site in Rifle, Colorado. Project results have expanded our current understanding of how field-scale spatial variations in fluxes of uranium, groundwater and salient electron donor/acceptors are coupled to spatial variations in measured microbial biomass/community composition, effective field-scale uranium mass balances, attenuation, and stability. The coupling between uranium, various nutrients and micro flora can be used to estimate field-scale rates of uranium attenuation and field-scale transitions in microbial communities. This research focuses on uranium (VI), but the sensor principles and design are applicable to field-scale fate and transport of other radionuclides. Laboratory studies focused on sorbent selection and calibration, along with sensor development and validation under controlled conditions. Field studies were conducted at the Rifle IFRC Site in Rifle, Colorado. These studies were closely coordinated with existing SBR (formerly ERSP) projects to complement data collection. Small field tests were conducted during the first two years that focused on evaluating field-scale deployment procedures and validating sensor performance under controlled field conditions. In the third and fourth year a suite of larger field studies were conducted. For these studies, the uranium flux sensor was used with uranium speciation measurements and molecular-biological tools to characterize microbial community and active biomass at synonymous wells distributed in a large grid. These field efforts quantified spatial changes in uranium flux and field-scale rates of uranium attenuation (ambient and stimulated), uranium stability, and quantitatively assessed how fluxes and effective reaction rates were coupled to spatial variations in microbial community and active biomass. Analyses of data from these field experiments were used to generate estimates of Monod kinetic parameters that are ‘effective’ in nature and optimal for modeling uranium fate and transport at the field-scale. This project provided the opportunity to develop the first sensor that provides direct measures of both uranium (VI) and groundwater flux. A multidisciplinary team was assembled to include two geochemists, a microbiologist, and two quantitative contaminant hydrologists. Now that the project is complete, the sensor can be deployed at DOE sites to evaluate field-scale uranium attenuation, source behavior, the efficacy of remediation, and off-site risk. Because the sensor requires no power, it can be deployed at remote sites for periods of days to months. The fundamental science derived from this project can be used to advance the development of predictive models for various transport and attenuation processes in aquifers. Proper development of these models is critical for long-term stewardship of contaminated sites in the context of predicting uranium source behavior, remediation performance, and off-site risk.

  17. Battery-free Wireless Sensor Network For Advanced Fossil-Fuel Based Power Generation

    SciTech Connect (OSTI)

    Yi Jia

    2011-02-28

    This report summarizes technical progress achieved during the project supported by the Department of Energy under Award Number DE-FG26-07NT4306. The aim of the project was to conduct basic research into battery-free wireless sensing mechanism in order to develop novel wireless sensors and sensor network for physical and chemical parameter monitoring in a harsh environment. Passive wireless sensing platform and five wireless sensors including temperature sensor, pressure sensor, humidity sensor, crack sensor and networked sensors developed and demonstrated in our laboratory setup have achieved the objective for the monitoring of various physical and chemical parameters in a harsh environment through remote power and wireless sensor communication, which is critical to intelligent control of advanced power generation system. This report is organized by the sensors developed as detailed in each progress report.

  18. The Sandia MEMS Passive Shock Sensor : FY08 failure analysis...

    Office of Scientific and Technical Information (OSTI)

    analysis activities. Citation Details In-Document Search Title: The Sandia MEMS Passive Shock Sensor : FY08 failure analysis activities. No abstract prepared. Authors:...

  19. Interpreting Remote Sensing NOx Measurements

    E-Print Network [OSTI]

    Denver, University of

    Interpreting Remote Sensing NOx Measurements Robert Slott, Consultant, Donald Stedman and Saj tailpipe emissions (HC, CO, NOx) are changing with time hUse remote sensing hMeasurements in at least 4 of the year at each location hUniform QC/QA and data reporting Paper # 2001-01-3640 #12;Remote Sensing

  20. Predictable and Controllable Wireless Sensor Networks

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    .roedig|c.sreenan}@cs.ucc.ie Abstract: Research activity in the area of wireless sensor networks has grown dramatically in the past few and reliability, raising concerns over their use in scenarios like mission critical production environments on Wireless Sensor Networks [1]. The volume of activity is further illustrated by recent IEEE magazines

  1. Ultrasensitive surveillance of sensors and processes

    DOE Patents [OSTI]

    Wegerich, Stephan W. (Glendale Heights, IL); Jarman, Kristin K. (Richland, WA); Gross, Kenneth C. (Bolingbrook, IL)

    2001-01-01

    A method and apparatus for monitoring a source of data for determining an operating state of a working system. The method includes determining a sensor (or source of data) arrangement associated with monitoring the source of data for a system, activating a method for performing a sequential probability ratio test if the data source includes a single data (sensor) source, activating a second method for performing a regression sequential possibility ratio testing procedure if the arrangement includes a pair of sensors (data sources) with signals which are linearly or non-linearly related; activating a third method for performing a bounded angle ratio test procedure if the sensor arrangement includes multiple sensors and utilizing at least one of the first, second and third methods to accumulate sensor signals and determining the operating state of the system.

  2. Ultrasensitive surveillance of sensors and processes

    DOE Patents [OSTI]

    Wegerich, Stephan W. (Glendale Heights, IL); Jarman, Kristin K. (Richland, WA); Gross, Kenneth C. (Bolingbrook, IL)

    1999-01-01

    A method and apparatus for monitoring a source of data for determining an operating state of a working system. The method includes determining a sensor (or source of data) arrangement associated with monitoring the source of data for a system, activating a method for performing a sequential probability ratio test if the data source includes a single data (sensor) source, activating a second method for performing a regression sequential possibility ratio testing procedure if the arrangement includes a pair of sensors (data sources) with signals which are linearly or non-linearly related; activating a third method for performing a bounded angle ratio test procedure if the sensor arrangement includes multiple sensors and utilizing at least one of the first, second and third methods to accumulate sensor signals and determining the operating state of the system.

  3. Characterization of Sensor Performance and Durability for Structural Health Monitoring Systems

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Characterization of Sensor Performance and Durability for Structural Health Monitoring Systems with regard to successfully implementing Structural Health Monitoring technologies in Air Force systems sensor system design and packaging. Keywords: Structural Health Monitoring, Piezo Wafer Active Sensors

  4. Gas sensor

    DOE Patents [OSTI]

    Schmid, Andreas K.; Mascaraque, Arantzazu; Santos, Benito; de la Figuera, Juan

    2014-09-09

    A gas sensor is described which incorporates a sensor stack comprising a first film layer of a ferromagnetic material, a spacer layer, and a second film layer of the ferromagnetic material. The first film layer is fabricated so that it exhibits a dependence of its magnetic anisotropy direction on the presence of a gas, That is, the orientation of the easy axis of magnetization will flip from out-of-plane to in-plane when the gas to be detected is present in sufficient concentration. By monitoring the change in resistance of the sensor stack when the orientation of the first layer's magnetization changes, and correlating that change with temperature one can determine both the identity and relative concentration of the detected gas. In one embodiment the stack sensor comprises a top ferromagnetic layer two mono layers thick of cobalt deposited upon a spacer layer of ruthenium, which in turn has a second layer of cobalt disposed on its other side, this second cobalt layer in contact with a programmable heater chip.

  5. Sensor apparatus

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID) [Idaho Falls, ID; Telschow, Kenneth L. (Idaho Falls, ID) [Idaho Falls, ID

    2009-12-22

    A sensor apparatus and method for detecting an environmental factor is shown that includes an acoustic device that has a characteristic resonant vibrational frequency and mode pattern when exposed to a source of acoustic energy and, futher, when exposed to an environmental factor, produces a different resonant vibrational frequency and/or mode pattern when exposed to the same source of acoustic energy.

  6. Remote switch actuator

    DOE Patents [OSTI]

    Haas, Edwin Gerard; Beauman, Ronald; Palo, Jr., Stefan

    2013-01-29

    The invention provides a device and method for actuating electrical switches remotely. The device is removably attached to the switch and is actuated through the transfer of a user's force. The user is able to remain physically removed from the switch site obviating need for protective equipment. The device and method allow rapid, safe actuation of high-voltage or high-current carrying electrical switches or circuit breakers.

  7. Remote repair appliance

    DOE Patents [OSTI]

    Heumann, Frederick K. (Ballston Spa, NY); Wilkinson, Jay C. (Ballston Spa, NY); Wooding, David R. (Saratoga Springs, NY)

    1997-01-01

    A remote appliance for supporting a tool for performing work at a worksite on a substantially circular bore of a workpiece and for providing video signals of the worksite to a remote monitor comprising: a baseplate having an inner face and an outer face; a plurality of rollers, wherein each roller is rotatably and adjustably attached to the inner face of the baseplate and positioned to roll against the bore of the workpiece when the baseplate is positioned against the mouth of the bore such that the appliance may be rotated about the bore in a plane substantially parallel to the baseplate; a tool holding means for supporting the tool, the tool holding means being adjustably attached to the outer face of the baseplate such that the working end of the tool is positioned on the inner face side of the baseplate; a camera for providing video signals of the worksite to the remote monitor; and a camera holding means for supporting the camera on the inner face side of the baseplate, the camera holding means being adjustably attached to the outer face of the baseplate. In a preferred embodiment, roller guards are provided to protect the rollers from debris and a bore guard is provided to protect the bore from wear by the rollers and damage from debris.

  8. Hybrid Model Predictive Control Based on Wireless Sensor Feedback: An Experimental Study

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Hybrid Model Predictive Control Based on Wireless Sensor Feedback: An Experimental Study Alberto based on measurements collected by a wireless sensor network. The proposed setup is the prototype of an industrial application in which a remote station controls the process via wireless network links

  9. Eye of the beholder: Inside this experimental camera, a stretchable sensor

    E-Print Network [OSTI]

    Rogers, John A.

    Videos Wind Turbine Condition Monitoring Due to environmental conditions, the remoteEye of the beholder: Inside this experimental camera, a stretchable sensor array sits below is a camera, modeled after an eyeball, that features a curved array of light sensors. Now a new design gives

  10. Remote sensing for wind power potential: a prospector's handbook

    SciTech Connect (OSTI)

    Wade, J.E.; Maule, P.A.; Bodvarsson, G.; Rosenfeld, C.L.; Woolley, S.G.; McClenahan, M.R.

    1983-02-01

    Remote sensing can aid in identifying and locating indicators of wind power potential from the terrestrial, marine, and atmospheric environments (i.e.: wind-deformed trees, white caps, and areas of thermal flux). It is not considered as a tool for determining wind power potential. A wide variety of remotely sensed evidence is described in terms of the scale at which evidence of wind power can be identified, and the appropriate remote sensors for finding such evidence. Remote sensing can be used for regional area prospecting using small-scale imagery. The information from such small-scale imagery is most often qualitative, and if it is transitory, examination of a number of images to verify presistence of the feature may be required. However, this evidence will allow rapid screening of a large area. Medium-scale imagery provides a better picture of the evidence obtained from small-scale imagery. At this level it is best to use existing imagery. Criteria relating to land use, accessibility, and proximity of candidate sites to nearby transmission lines can also be effectively evaluated from medium-scale imagery. Large-scale imagery provides the most quantitative evidence of the strength of wind. Wind-deformed trees can be identified at a large number of sites using only a few hours in locally chartered aircraft. A handheld 35mm camera can adequately document any evidence of wind. Three case studies that employ remote sensing prospecting techniques are described. Based on remotely sensed evidence, the wind power potential in three geographically and climatically diverse areas of the United States is estimated, and the estimates are compared to actual wind data in those regions. In addition, the cost of each survey is discussed. The results indicate that remote sensing for wind power potential is a quick, cost effective, and fairly reliable method for screening large areas for wind power potential.

  11. FFuunnddaammeennttaallss of Remote Sensing

    E-Print Network [OSTI]

    Small, Christopher

    .8 Endnotes 22 Did You Know 23 Whiz Quiz and Answers 27 2. Sensors 2.1 On the Ground, In the Air, In Space 34 and Concentration Ice Motion 5.7 Land Cover 215 Rural/Urban change Biomass Mapping 5.8 Mapping 222 Planimetry DEMs by sensing and recording reflected or emitted energy and processing, analyzing, and applying that information

  12. Virtual Sensors: Abstracting Data from Physical Sensors

    E-Print Network [OSTI]

    Julien, Christine

    of heterogeneous physical sensors. For example, on an intelligent construction site, users may desire the cranesVirtual Sensors: Abstracting Data from Physical Sensors TR-UTEDGE-2006-001 Sanem Kabadayi Adam Pridgen Christine Julien © Copyright 2006 The University of Texas at Austin #12;Virtual Sensors

  13. Building Adaptable Sensor Networks with Sensor Cubes

    E-Print Network [OSTI]

    Roussos, George

    (battery voltage, charge/discharge current, input power, ...) Wireless link: · To nearby sensor modules of autonomous wireless sensor module Alternative hardware implementation using solder ball interconnect technology Wireless sensor module on 2 EUR coin Sensor module hardware Wide application range requires

  14. Field emission chemical sensor

    DOE Patents [OSTI]

    Panitz, J.A.

    1983-11-22

    A field emission chemical sensor for specific detection of a chemical entity in a sample includes a closed chamber enclosing two field emission electrode sets, each field emission electrode set comprising (a) an electron emitter electrode from which field emission electrons can be emitted when an effective voltage is connected to the electrode set; and (b) a collector electrode which will capture said electrons emitted from said emitter electrode. One of the electrode sets is passive to the chemical entity and the other is active thereto and has an active emitter electrode which will bind the chemical entity when contacted therewith.

  15. Corrosion sensor

    DOE Patents [OSTI]

    Glass, Robert S. (Livermore, CA); Clarke, Jr., Willis L. (San Ramon, CA); Ciarlo, Dino R. (Livermore, CA)

    1994-01-01

    A corrosion sensor array incorporating individual elements for measuring various elements and ions, such as chloride, sulfide, copper, hydrogen (pH), etc. and elements for evaluating the instantaneous corrosion properties of structural materials. The exact combination and number of elements measured or monitored would depend upon the environmental conditions and materials used which are subject to corrosive effects. Such a corrosion monitoring system embedded in or mounted on a structure exposed to the environment would serve as an early warning system for the onset of severe corrosion problems for the structure, thus providing a safety factor as well as economic factors. The sensor array is accessed to an electronics/computational system, which provides a means for data collection and analysis.

  16. Corrosion sensor

    DOE Patents [OSTI]

    Glass, R.S.; Clarke, W.L. Jr.; Ciarlo, D.R.

    1994-04-26

    A corrosion sensor array is described incorporating individual elements for measuring various elements and ions, such as chloride, sulfide, copper, hydrogen (pH), etc. and elements for evaluating the instantaneous corrosion properties of structural materials. The exact combination and number of elements measured or monitored would depend upon the environmental conditions and materials used which are subject to corrosive effects. Such a corrosion monitoring system embedded in or mounted on a structure exposed to the environment would serve as an early warning system for the onset of severe corrosion problems for the structure, thus providing a safety factor as well as economic factors. The sensor array is accessed to an electronics/computational system, which provides a means for data collection and analysis. 7 figures.

  17. Sensor assembly

    DOE Patents [OSTI]

    Bennett, Thomas E.; Nelson, Drew V.

    2004-04-13

    A ribbon-like sensor assembly is described wherein a length of an optical fiber embedded within a similar lengths of a prepreg tow. The fiber is ""sandwiched"" by two layers of the prepreg tow which are merged to form a single consolidated ribbon. The consolidated ribbon achieving a generally uniform distribution of composite filaments near the embedded fiber such that excess resin does not ""pool"" around the periphery of the embedded fiber.

  18. Chemical sensors

    DOE Patents [OSTI]

    Lowell, J.R. Jr.; Edlund, D.J.; Friesen, D.T.; Rayfield, G.W.

    1992-06-09

    Sensors responsive to small changes in the concentration of chemical species are disclosed, comprising a mechanicochemically responsive polymeric film capable of expansion or contraction in response to a change in its chemical environment, either operatively coupled to a transducer capable of directly converting the expansion or contraction to a measurable electrical or optical response, or adhered to a second inert polymeric strip, or doped with a conductive material. 12 figs.

  19. Power-Adaptive Routing Topology for Remote Sensor Networks

    E-Print Network [OSTI]

    Mishra, Prabhat

    has the same critical limitations including computation and transmission capabilities, and limited-node is not in transmission range of a sending node, the network must have the capability to route a message from the sending be handled. The routing of messages causes a large energy burden on each node along a routing path, as each

  20. Active Sensors | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (UtilityMichigan)dataSuccessful SmartAcomita Lake,

  1. Amorphous In–Ga–Zn–O thin-film transistor active pixel sensor x-ray imager for digital breast tomosynthesis

    SciTech Connect (OSTI)

    Zhao, Chumin; Kanicki, Jerzy

    2014-09-15

    Purpose: The breast cancer detection rate for digital breast tomosynthesis (DBT) is limited by the x-ray image quality. The limiting Nyquist frequency for current DBT systems is around 5?lp/mm, while the fine image details contained in the high spatial frequency region (>5?lp/mm) are lost. Also today the tomosynthesis patient dose is high (0.67–3.52?mGy). To address current issues, in this paper, for the first time, a high-resolution low-dose organic photodetector/amorphous In–Ga–Zn–O thin-film transistor (a-IGZO TFT) active pixel sensor (APS) x-ray imager is proposed for next generation DBT systems. Methods: The indirect x-ray detector is based on a combination of a novel low-cost organic photodiode (OPD) and a cesium iodide-based (CsI:Tl) scintillator. The proposed APS x-ray imager overcomes the difficulty of weak signal detection, when small pixel size and low exposure conditions are used, by an on-pixel signal amplification with a significant charge gain. The electrical performance of a-IGZO TFT APS pixel circuit is investigated by SPICE simulation using modified Rensselaer Polytechnic Institute amorphous silicon (a-Si:H) TFT model. Finally, the noise, detective quantum efficiency (DQE), and resolvability of the complete system are modeled using the cascaded system formalism. Results: The result demonstrates that a large charge gain of 31–122 is achieved for the proposed high-mobility (5–20 cm{sup 2}/V?s) amorphous metal-oxide TFT APS. The charge gain is sufficient to eliminate the TFT thermal noise, flicker noise as well as the external readout circuit noise. Moreover, the low TFT (<10{sup ?13} A) and OPD (<10{sup ?8} A/cm{sup 2}) leakage currents can further reduce the APS noise. Cascaded system analysis shows that the proposed APS imager with a 75??m pixel pitch can effectively resolve the Nyquist frequency of 6.67 lp/mm, which can be further improved to ?10?lp/mm if the pixel pitch is reduced to 50??m. Moreover, the detector entrance exposure per projection can be reduced from 1 to 0.3 mR without a significant reduction of DQE. The signal-to-noise ratio of the a-IGZO APS imager under 0.3 mR x-ray exposure is comparable to that of a-Si:H passive pixel sensor imager under 1 mR, indicating good image quality under low dose. A threefold reduction of current tomosynthesis dose is expected if proposed technology is combined with an advanced DBT image reconstruction method. Conclusions: The proposed a-IGZO APS x-ray imager with a pixel pitch <75??m is capable to achieve a high spatial frequency (>6.67 lp/mm) and a low dose (<0.4 mGy) in next generation DBT systems.

  2. Evaluation of chlorophyll-a remote sensing algorithms for an optically complex estuary

    E-Print Network [OSTI]

    Meyers, Steven D.

    Evaluation of chlorophyll-a remote sensing algorithms for an optically complex estuary Chengfeng Le to derive Chla based on red and near-infrared wavelengths to avoid such problems. Using in situ data sensors such as the MODIS (Moderate Resolution Imaging Spectroradiometer, 1999­present for Terra, 2002

  3. A generalizable method for remote sensing of canopy nitrogen across a wide range of forest ecosystems

    E-Print Network [OSTI]

    McNeil, Brenden

    spectroscopy, or hyperspectral remote sensing, from satellite or airborne sensors. Development of this approach's Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and/or Hyperion instruments. The combined dataset was used to evaluate site-specific calibration results as well as results obtained with data pooled across

  4. ON-ROAD REMOTE SENSING OF CO AND HC EMISSIONS IN CALIFORNIA

    E-Print Network [OSTI]

    Denver, University of

    1994. v #12;vi #12;ABSTRACT The University of Denver remote sensor for on-road measurement of motor vehicle carbon monoxide and hydrocarbon emissions was used for 30 days in California in 1991 than 130,000 measurements, resulting in 91,679 records with emissions and vehicle information (from

  5. Nitrogen dioxide, sulfur dioxide, and ammonia detector for remote sensing of vehicle emissions

    E-Print Network [OSTI]

    Denver, University of

    sulfur diesel fuel is less expensive due to reduced taxes and as such may be prone to illegal use in on-road November 2005; published online 18 January 2006 A remote sensor for measuring on-road vehicles passing of reducing sulfur in fuel for all mobile sources. This process begins with ultralow sulfur on-road diesel

  6. Comparing Optical and Microwave Remote Sensing-based Vegetation Density over Mongolia for 1988-2006

    E-Print Network [OSTI]

    Evans, Jason

    Comparing Optical and Microwave Remote Sensing-based Vegetation Density over Mongolia for 1988 and microwave sensors are expected to provide complementary vegetation information. Here we compared NDVI from-annual variations. However, the long term changes reflected by them are divergent. Microwave based VOD shows

  7. COMPRESSED REMOTE SENSING OF SPARSE OBJECTS ALBERT C. FANNJIANG, PENGCHONG YAN, AND THOMAS STROHMER

    E-Print Network [OSTI]

    Fannjiang, Albert

    COMPRESSED REMOTE SENSING OF SPARSE OBJECTS ALBERT C. FANNJIANG, PENGCHONG YAN, AND THOMAS STROHMER sensing. By introducing the sensor as well as target ensembles, the maximum number of recoverable targets that in many imaging applications the targets are sparse in the sense that they typically occupy a small

  8. Estimating biomass on CRP pastureland: A comparison of remote sensing techniques

    E-Print Network [OSTI]

    Lawrence, Rick L.

    Estimating biomass on CRP pastureland: A comparison of remote sensing techniques Tucker F. Porter Accepted 31 January 2014 Available online 21 February 2014 Keywords: Biomass estimation model NDVI Bandwise regression Crop circle sensor Landsat imagery a b s t r a c t Biomass from land enrolled in the Conservation

  9. Monitoring Energy Consumption In Wireless Sensor Networks

    E-Print Network [OSTI]

    Turau, Volker

    Monitoring Energy Consumption In Wireless Sensor Networks Matthias Witt, Christoph Weyer to monitor the consump- tion of energy in wireless sensor networks based on video streams com- posed from energy consumption in both standby and active modes is the basis of wireless networks. Energy preserving

  10. Remotely operated pipe connector

    DOE Patents [OSTI]

    Josefiak, Leonard J. (Scotia, NY); Cramer, Charles E. (Guilderford, NY)

    1988-01-01

    An apparatus for remotely assembling and disassembling a Graylock type coctor between a pipe and a closure for the pipe includes a base and a receptacle on the base for the closure. The pipe is moved into position vertically above the closure by a suitable positioning device such that the flange on the pipe is immediately adjacent and concentric with the flange on the closure. A moving device then moves two semicircular collars from a position free of the closure to a position such that the interior cam groove of each collar contacts the two flanges. Finally, a tensioning device automatically allows remote tightening and loosening of a nut and bolt assembly on each side of the collar to cause a seal ring located between the flanges to be compressed and to seal the closure. Release of the pipe and the connector is accomplished in the reverse order. Preferably, the nut and bolt assembly includes an elongate shaft portion on which a removable sleeve is located.

  11. Hydrogen sensor

    DOE Patents [OSTI]

    Duan, Yixiang (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Cao, Wenqing (Katy, TX)

    2010-11-23

    A hydrogen sensor for detecting/quantitating hydrogen and hydrogen isotopes includes a sampling line and a microplasma generator that excites hydrogen from a gas sample and produces light emission from excited hydrogen. A power supply provides power to the microplasma generator, and a spectrometer generates an emission spectrum from the light emission. A programmable computer is adapted for determining whether or not the gas sample includes hydrogen, and for quantitating the amount of hydrogen and/or hydrogen isotopes are present in the gas sample.

  12. Influenza Sensor

    DOE Patents [OSTI]

    Swanson, Basil I. (Los Alamos, NM); Song, Xuedong (Los Alamos, NM); Unkefer, Clifford (Los Alamos, NM); Silks, III, Louis A. (Los Alamos, NM); Schmidt, Jurgen G. (Los Alamos, NM)

    2006-03-28

    A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.

  13. Influenza sensor

    DOE Patents [OSTI]

    Swanson, Basil I. (Los Alamos, NM); Song, Xuedong (Los Alamos, NM); Unkefer, Clifford (Los Alamos, NM); Silks, III, Louis A. (Los Alamos, NM); Schmidt, Jurgen G. (Los Alamos, NM)

    2003-09-30

    A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.

  14. Influenza Sensor

    DOE Patents [OSTI]

    Swanson, Basil I. (Los Alamos, NM); Song, Xuedong (Los Alamos, NM); Unkefer, Clifford (Los Alamos, NM); Silks, III, Louis A. (Los Alamos, NM); Schmidt, Jurgen G. (Los Alamos, NM)

    2005-05-17

    A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.

  15. Dynamic sensor tasking in heterogeneous, mobile sensor networks

    E-Print Network [OSTI]

    Jones, Peter B. (Peter B.), S.M., Massachusetts Institute of Technology

    2005-01-01

    Modern sensor environments often attempt to combine several sensors into a single sensor network. The nodes of this network are generally heterogeneous and may vary with respect to sensor complexity, sensor operational ...

  16. Remote Chemical Sensing Using Quantum Cascade Lasers

    SciTech Connect (OSTI)

    Harper, Warren W.; Strasburg, Jana D.; Aker, Pam M.; Schultz, John F.

    2004-01-20

    Research done by the IR sensors team at PNNL is focused on developing advanced spectroscopic methods for detecting signatures of nuclear, chemical, biological and explosives weapons or weapons production. The sensors we develop fall into two categories: remote sensors that can be operated at distances ranging from 150 m to 10 km, and point sensors that are used for in-situ inspection and detection. FY03 has seen an explosion in FM DIAL progress with the net result being solid confirmation that FM DIAL is a technique capable of remote chemical monitoring in a wide variety of venues. For example, FM DIAL was used to detect a small plume of hydrogen sulfide, a candidate CW agent, released in the desert environment of the Hanford 200 Area site. These experiments were conducted over a range of physical conditions including outside temperatures ranging from 70 F to 105 F and turbulence conditions ranging from quiescent to chaotic. We are now rapidly developing the information needed to design prototype FM DIAL systems that are optimized for specific applications that include scenarios such as fixed position stand-off detection and mobile UAV mounted remote monitoring. Just as an example, in FY04 we will use FM DIAL to detect both in-facility and outdoor release of enriched UF6. The rapid progress in FM DIAL research made in FY03 is attributed to several advances. First, final construction of a custom-designed trailer allowed the instrument to be housed in a mobile temperature-controlled environment. This allowed the experiment to be transported to several locations so that data could be collected under a range of physical conditions. This has led to a better understanding of a variety of experimental noise sources. With this knowledge, we have been able to implement several changes in the way the FM DIAL data is collected and processed, with the net result being a drastic improvement in our confidence of analyte concentration measurement and an improvement i n the instrument detection limit. The range of chemicals detectable by FM DIAL has also been extended. Prior to FY03 only water and nitrous oxide (N2O) had been seen. Experiments on extending the tuning range of the quantum cascade laser (QCL) currently used in the experiments demonstrate that many more species are now accessible including H2S, C2F4H2, and CH4. We additionally demonstrated that FM DIAL measurements can be made using short wave infrared (SWIR) telecommunications lasers. While measurements made using these components are noisier because turbulence and particulate matter cause more interference in this spectral region, monitoring in this region enables larger species to be detected simply because these lasers have a greater tuning range. In addition, SWIR monitoring also allows for the detection of second-row hydride species such as HF and HCl, which are important nuclear and CWA proliferation signatures.

  17. Duty-Cycle-Aware Broadcast in Wireless Sensor Networks

    E-Print Network [OSTI]

    Liu, Jiangchuan (JC)

    active and dormant states, so as to conserve energy and extend the network lifetime. Unfortunately fails to capture the uniqueness of energy-constrained wireless sensor networks. The sensor nodesDuty-Cycle-Aware Broadcast in Wireless Sensor Networks Feng Wang Jiangchuan Liu School of Computing

  18. Microcantilever sensor

    DOE Patents [OSTI]

    Thundat, T.G.; Wachter, E.A.

    1998-02-17

    An improved microcantilever sensor is fabricated with at least one microcantilever attached to a piezoelectric transducer. The microcantilever is partially surface treated with a compound selective substance having substantially exclusive affinity for a targeted compound in a monitored atmosphere. The microcantilever sensor is also provided with a frequency detection means and a bending detection means. The frequency detection means is capable of detecting changes in the resonance frequency of the vibrated microcantilever in the monitored atmosphere. The bending detection means is capable of detecting changes in the bending of the vibrated microcantilever in the monitored atmosphere coactively with the frequency detection means. The piezoelectric transducer is excited by an oscillator means which provides a signal driving the transducer at a resonance frequency inducing a predetermined order of resonance on the partially treated microcantilever. Upon insertion into a monitored atmosphere, molecules of the targeted chemical attach to the treated regions of the microcantilever resulting in a change in oscillating mass as well as a change in microcantilever spring constant thereby influencing the resonant frequency of the microcantilever oscillation. Furthermore, the molecular attachment of the target chemical to the treated regions induce areas of mechanical strain in the microcantilever consistent with the treated regions thereby influencing microcantilever bending. The rate at which the treated microcantilever accumulates the target chemical is a function of the target chemical concentration. Consequently, the extent of microcantilever oscillation frequency change and bending is related to the concentration of target chemical within the monitored atmosphere. 16 figs.

  19. Nanostructures and Porous Silicon: Activity at Interfaces in Sensors & Photocatalytic Reactors Chui-Lai Cheung, New York University, 2010 SURF Fellow

    E-Print Network [OSTI]

    Li, Mo

    was the anode. The current density was kept constant anywhere between 3 mA/cm2 and 50 mA/cm2 for each individual be formed by etching silicon wafers under a constant current density in HF solutions. These silicon­ as efficient gas sensors, for example. Metal particles can be deposited on the increased surface area

  20. Space and Remote Sensing (ISR-2)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2 Space and Remote Sensing Developing and applying remote sensing capabilities to problems of global security and related sciences Contacts Group Leader Robert Shirey Email Deputy...

  1. Sensors and Actuators B 120 (2006) 2534 Fine-tuning of ceramic-based chemical sensors via

    E-Print Network [OSTI]

    Azad, Abdul-Majeed

    2006-01-01

    Sensors and Actuators B 120 (2006) 25­34 Fine-tuning of ceramic-based chemical sensors via novel of solid-state ceramic-based chemical sensors. High selectivity, enhanced sensitivity and short response activity of ceramics are largely microstructure-dominated, benign surface features such as small grain size

  2. Configurable dynamic privacy for pervasive sensor networks

    E-Print Network [OSTI]

    Gong, Nan-Wei

    2009-01-01

    Ubiquitous computing sensor networks have greatly augmented the functionality of interactive media systems by adding the ability to capture and store activity-related information. Analyzing the information recorded from ...

  3. Carbon Nanotube Based Sensors

    SciTech Connect (OSTI)

    Jiang, Mian; Lin, Yuehe

    2006-11-01

    This review article provides a comprehensive review on sensors and biosensors based on functionalized carbon nanotubes.

  4. Pre-conceptual Design Assessment of DEMO Remote Maintenance

    E-Print Network [OSTI]

    Loving, A; Sykes, N; Iglesias, D; Coleman, M; Thomas, J; Harman, J; Fischer, U; Sanz, J; Siuko, M; Mittwollen, M; others,

    2013-01-01

    EDFA, as part of the Power Plant Physics and Technology programme, has been working on the pre-conceptual design of a Demonstration Power Plant (DEMO). As part of this programme, a review of the remote maintenance strategy considered maintenance solutions compatible with expected environmental conditions, whilst showing potential for meeting the plant availability targets. A key finding was that, for practical purposes, the expected radiation levels prohibit the use of complex remote handling operations to replace the first wall. In 2012/13, these remote maintenance activities were further extended, providing an insight into the requirements, constraints and challenges. In particular, the assessment of blanket and divertor maintenance, in light of the expected radiation conditions and availability, has elaborated the need for a very different approach from that of ITER. This activity has produced some very informative virtual reality simulations of the blanket segments and pipe removal that are exceptionally ...

  5. Leak Detection and H2 Sensor Development

    SciTech Connect (OSTI)

    Brosha, Eric L.

    2012-07-10

    Low-cost, durable, and reliable Hydrogen safety sensor for vehicle, stationary, and infrastructure applications. A new zirconia, electrochemical-based sensor technology is being transitioned out of the laboratory and into an advanced testing phase for vehicular and stationary H{sub 2} safety applications. Mixed potential sensors are a class of electrochemical devices that develop an open-circuit electromotive force due to the difference in the kinetics of the redox reactions of various gaseous species at each electrode/electrolyte/gas interface, referred to as the triple phase boundary (TPB). Therefore, these sensors have been considered for the sensing of various reducible or oxidizable gas species in the presence of oxygen. Based on this principle, a unique sensor design was developed by LANL and LLNL. The uniqueness of this sensor derives from minimizing heterogeneous catalysis (detrimental to sensor response) by avoiding gas diffusion through a catalytically active material and minimizing diffusion path to the TPB. Unlike the conventional design of these devices that use a dense solid electrolyte and porous thin film electrodes (similar to the current state-of-the-art zirconia-based sensors and fuel cells), the design of this sensor uses dense electrodes and porous electrolytes. Such a sensor design facilitates a stable and reproducible device response, since dense electrode morphologies are easy to reproduce and are significantly more stable than the conventional porous morphologies. Moreover, these sensors develop higher mixed potentials since the gas diffusion is through the less catalytically active electrolyte than the electrode. Lastly, the choice of electrodes is primarily based on their O2 reduction kinetics and catalytic properties vis-a-vis the target gas of interest.

  6. CHAPTER 9CHAPTER 9CHAPTER 9:CHAPTER 9: Active and PassiveActive and Passive

    E-Print Network [OSTI]

    Gilbes, Fernando

    1 CHAPTER 9CHAPTER 9CHAPTER 9:CHAPTER 9: Active and PassiveActive and Passive Microwave RSMicrowave Hall Passive Remote SensingPassive Remote Sensing Passive remote sensing systems record electromagnetic infrared energy) from the surface of the E hEarth. #12;2 SSM/I Passive Microwave Radiometer Image of

  7. Chit-based Remote Storage

    E-Print Network [OSTI]

    Paluska, Justin Mazzola

    We propose a model for reliable remote storage founded on contract law. Consumers submit their bits to storage providers in exchange for a chit. A chit is a cryptographically secure, verifiable contract between a consumer ...

  8. Robotics and remote systems applications

    SciTech Connect (OSTI)

    Rabold, D.E.

    1996-05-01

    This article is a review of numerous remote inspection techniques in use at the Savannah River (and other) facilities. These include: (1) reactor tank inspection robot, (2) californium waste removal robot, (3) fuel rod lubrication robot, (4) cesium source manipulation robot, (5) tank 13 survey and decontamination robots, (6) hot gang valve corridor decontamination and junction box removal robots, (7) lead removal from deionizer vessels robot, (8) HB line cleanup robot, (9) remote operation of a front end loader at WIPP, (10) remote overhead video extendible robot, (11) semi-intelligent mobile observing navigator, (12) remote camera systems in the SRS canyons, (13) cameras and borescope for the DWPF, (14) Hanford waste tank camera system, (15) in-tank precipitation camera system, (16) F-area retention basin pipe crawler, (17) waste tank wall crawler and annulus camera, (18) duct inspection, and (19) deionizer resin sampling.

  9. CHAPTER 12:CHAPTER 12: Remote Sensing ofRemote Sensing of

    E-Print Network [OSTI]

    Gilbes, Fernando

    1 CHAPTER 12:CHAPTER 12: Remote Sensing ofRemote Sensing of WaterWaterWaterWater REFERENCE: Remote SensingREFERENCE: Remote Sensing of the Environmentof the Environment John R. Jensen (2007)John R. Jensen yy y the waterthe water with remotewith remote sensing?sensing? #12;2 THE BLUE PLANETTHE BLUE PLANET

  10. CHAPTERCHAPTER 1313CHAPTERCHAPTER 13:13: Remote Sensing ofRemote Sensing of

    E-Print Network [OSTI]

    Gilbes, Fernando

    11 CHAPTERCHAPTER 1313CHAPTERCHAPTER 13:13: Remote Sensing ofRemote Sensing of Urban LandscapeUrban Landscape REFERENCE: Remote SensingREFERENCE: Remote Sensing of the Environmentof the Environment John R Hall pp Urban Remote Sensing Users · Zoning regulation · Commerce and economic development · Tax

  11. Remote hybrid power systems

    SciTech Connect (OSTI)

    Barley, C.D.; Winn, C.B. [Colorado State Univ., Fort Collins, CO (United States)

    1997-12-31

    This paper provides an overview of the emerging technology of remote, stand-alone electrical power systems featuring a renewable source (wind or photovoltaics [PV]) as well as a diesel generator, with or without an energy storage device. Other stand-alone power systems are discussed briefly, mainly to emphasize the domain of hybrid systems. The history of hybrid systems is reviewed, beginning with the first wind/diesel system in the late 1970s. Other topics include issues arising from the characteristics of diesel engine/generator sets; simple vs. complex systems; the various energy storage technologies that have been used or proposed; control strategies; modeling; optimization; and some {open_quotes}nuts & bolts{close_quotes} details. The bibliography includes over 130 references which are cited throughout the topical discussions. It is concluded that the technical feasibility of hybrid systems has been demonstrated through many prototype installations, and that areas for further improvements include higher reliability and more economical energy storage devices. 139 refs., 7 figs., 1 tab.

  12. Remote direct memory access

    DOE Patents [OSTI]

    Archer, Charles J.; Blocksome, Michael A.

    2012-12-11

    Methods, parallel computers, and computer program products are disclosed for remote direct memory access. Embodiments include transmitting, from an origin DMA engine on an origin compute node to a plurality target DMA engines on target compute nodes, a request to send message, the request to send message specifying a data to be transferred from the origin DMA engine to data storage on each target compute node; receiving, by each target DMA engine on each target compute node, the request to send message; preparing, by each target DMA engine, to store data according to the data storage reference and the data length, including assigning a base storage address for the data storage reference; sending, by one or more of the target DMA engines, an acknowledgment message acknowledging that all the target DMA engines are prepared to receive a data transmission from the origin DMA engine; receiving, by the origin DMA engine, the acknowledgement message from the one or more of the target DMA engines; and transferring, by the origin DMA engine, data to data storage on each of the target compute nodes according to the data storage reference using a single direct put operation.

  13. Aircraft Cabin Environmental Quality Sensors

    E-Print Network [OSTI]

    Gundel, Lara

    2010-01-01

    Gale et al. (2006) and evaluation of sensor performance byConclusions from evaluation of representative sensor systemsConclusions from evaluation of representative sensor systems

  14. Mobility in Wireless Sensor Networks

    E-Print Network [OSTI]

    Mehta, Ankur Mukesh

    2012-01-01

    sensing, composed of 3 MEMS sensors. Angular yaw rate wasIn particular, as the MEMS sensor suppliers release everwhich utilizes miniature MEMS sensor technology. It combines

  15. Research Themes and Tasks CIOSS activities are described within three categories: Administration,

    E-Print Network [OSTI]

    Kurapov, Alexander

    . Satellite Sensors and Techniques: Evaluation of existing and proposed satellite sensors, algorithms in this category, as are workshops designed to develop or evaluate present and planned sensors and techniques. b of CIOSS research is to develop, evaluate, improve and use methods of ocean remote sensing and ocean

  16. Well casing-based geophysical sensor apparatus, system and method

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2010-03-09

    A geophysical sensor apparatus, system, and method for use in, for example, oil well operations, and in particular using a network of sensors emplaced along and outside oil well casings to monitor critical parameters in an oil reservoir and provide geophysical data remote from the wells. Centralizers are affixed to the well casings and the sensors are located in the protective spheres afforded by the centralizers to keep from being damaged during casing emplacement. In this manner, geophysical data may be detected of a sub-surface volume, e.g. an oil reservoir, and transmitted for analysis. Preferably, data from multiple sensor types, such as ERT and seismic data are combined to provide real time knowledge of the reservoir and processes such as primary and secondary oil recovery.

  17. In Proc. Conference on Coastal Environmental Sensing Networks (CESN 2007), Boston MA, April 2007. A Wireless Video Sensor Network for Autonomous Coastal Sensing

    E-Print Network [OSTI]

    Little, Thomas

    be constructed for less then $50 then it is possible to deploy a very large number of units providing area simultaneously to a remote observer. This and other strategies for managing data overload and energy consumption an architecture and prototype for a low-power and low-cost video sensor unit suitable for deployment in remote

  18. T-573: Windows Remote Desktop Client DLL Loading Error Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in Windows Remote Desktop Client. A remote user can cause arbitrary code to be executed on the target user's system.

  19. The Wildlife Society (TWS) GIS Annual Remote Sensing Meeting

    E-Print Network [OSTI]

    Dwyer, Chris

    1996-01-01

    Secretary/Treasurer, TWS GIS & Remote Sensing Working Group.The Wildlife Society (TWS) GIS Annual Remote Sensing Meetinghosted a special meeting of GIS and remote sensing interests

  20. Remote sensing for the geobotanical and biogeochemical assessment of environmental contamination

    SciTech Connect (OSTI)

    Wickham, J.; Chesley, M.; Lancaster, J.; Mouat, D.

    1993-01-01

    Under Contract Number DE-AC08-90NV10845, the DOE has funded the Desert Research Institute (DRI) to examine several aspects of remote sensing, specifically with respect to how its use might help support Environmental Restoration and Waste Management (ERWM) activities at DOE sites located throughout the country. This report represents partial fulfillment of DRI`s obligations under that contract and includes a review of relevant literature associated with remote sensing studies and our evaluation and recommendation as to the applicability of various remote sensing techniques for DOE needs. With respect to DOE ERWM activities, remote sensing may be broadly defined as collecting information about a target without actually being in physical contact with the object. As the common platforms for remote sensing observations are aircraft and satellites, there exists the possibility to rapidly and efficiently collect information over DOE sites that would allow for the identification and monitoring of contamination related to present and past activities. As DOE sites cover areas ranging from tens to hundreds of square miles, remote sensing may provide an effective, efficient, and economical method in support of ERWM activities. For this review, remote sensing has been limited to methods that employ electromagnetic (EM) energy as the means of detecting and measuring target characteristics.

  1. Radionuclide Sensors for Water Monitoring

    SciTech Connect (OSTI)

    Grate, Jay W.; Egorov, Oleg B.; DeVol, Timothy A.

    2004-06-29

    Radionuclide contamination in the soil and groundwater at U.S. Department of Energy (DOE) sites is a severe problem that requires monitoring and remediation. Radionuclide measurement techniques are needed to monitor surface waters, groundwater, and process waters. Typically, water samples are collected and transported to an analytical laboratory, where costly radiochemical analyses are performed. To date, there has been very little development of selective radionuclide sensors for alpha- and beta-emitting radionuclides such as 90Sr, 99Tc, and various actinides of interest. The objective of this project is to investigate novel sensor concepts and materials for sensitive and selective determination of beta- and alpha-emitting radionuclide contaminants in water. To meet the requirements for low-level, isotope-specific detection, the proposed sensors are based on radiometric detection. As a means to address the fundamental challenge of the short ranges of beta and alpha particle s in water, our overall approach is based on localization of preconcentration/separation chemistries directly on or within the active area of a radioactivity detector. Automated microfluidics is used for sample manipulation and sensor regeneration or renewal. The outcome of these investigations will be the knowledge necessary to choose appropriate chemistries for selective preconcentration of radionuclides from environmental samples, new materials that combine chemical selectivity with scintillating properties, new materials that add chemical selectivity to solid-state diode detectors, new preconcentrating column sensors, and improved instrumentation and signal processing for selective radionuclide sensors. New knowledge will provide the basis for designing effective probes and instrumentation for field and in situ measurements.

  2. Radionuclide Sensors for Water Monitoring

    SciTech Connect (OSTI)

    Grate, Jay W.; Egorov, Oleg B.; DeVol, Timothy A.

    2003-06-01

    Radionuclide contamination in the soil and groundwater at U.S. Department of Energy (DOE) sites is a severe problem that requires monitoring and remediation. Radionuclide measurement techniques are needed to monitor surface waters, groundwater, and process waters. Typically, water samples are collected and transported to an analytical laboratory, where costly radiochemical analyses are performed. To date, there has been very little development of selective radionuclide sensors for alpha- and beta-emitting radionuclides such as 90Sr, 99Tc, and various actinides of interest. The objective of this project is to investigate novel sensor concepts and materials for sensitive and selective determination of beta- and alpha-emitting radionuclide contaminants in water. To meet the requirements for low-level, isotope-specific detection, the proposed sensors are based on radiometric detection. As a means to address the fundamental challenge of the short ranges of beta and alpha particles in water, our overall approach is based on localization of preconcentration/separation chemistries directly on or within the active area of a radioactivity detector. Automated microfluidics is used for sample manipulation and sensor regeneration or renewal. The outcome of these investigations will be the knowledge necessary to choose appropriate chemistries for selective preconcentration of radionuclides from environmental samples, new materials that combine chemical selectivity with scintillating properties, new materials that add chemical selectivity to solid-state diode detectors, new preconcentrating column sensors, and improved instrumentation and signal processing for selective radionuclide sensors. New knowledge will provide the basis for designing effective probes and instrumentation for field and in situ measurements.

  3. Demonstration of damage with a wireless sensor network

    SciTech Connect (OSTI)

    Tanner, Neal A.; Farrar, C. R. (Charles R.)

    2001-01-01

    A damage detection system was developed with commercially available wireless sensors. Statistical process control methods were used to monitor the correlation of vibration data from two accelerometers mounted across a joint. Changes in correlation were used to detect damage to the joint. All data processing was done remotely on a microprocessor integrated with the wireless sensors to allow for the transmission of a simple damaged or undamaged status for each monitored joint. Additionally, a portable demonstration structure was developed to showcase the capabilities of the damage detection system to monitor joint failure in real time.

  4. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 49, NO. 4, APRIL 2011 1343 Operational and Performance Considerations

    E-Print Network [OSTI]

    Kerekes, John

    of acquisition conditions. Real ground-truthed hyperspectral data are employed in or- der to evaluate] and demonstrated to be a pow- erful tool in many remote-sensing applications. Hyperspectral sensors can measure high material discriminability. For systems operating in the 0.4 ÷ 2.5 µm range, spanning the visible/near-infrared

  5. New functional polymers for sensors, smart materials and solar cells

    E-Print Network [OSTI]

    Lobez Comeras, Jose Miguel

    2012-01-01

    Organic polymers can be used as the active component of sensors, smart materials, chemical-delivery systems and the active layer of solar cells. The rational design and modification of the chemical structure of polymers ...

  6. Remote Optical Imagery of Obscured Objects in Low-Visibility Environments Using Parametric Amplification

    SciTech Connect (OSTI)

    Asher, R.B.; Bliss, D.E.; Cameron, S.M.; Hamil, R.A.

    1998-10-14

    The development of unconventional active optical sensors to remotely detect and spatially resolve suspected threats obscured by low-visibility observation conditions (adverse weather, clouds, dust, smoke, precipitation, etc.) is fundamental to maintaining tactical supremacy in the battlespace. In this report, the authors describe an innovative frequency-agile image intensifier technology based on time-gated optical parametic amplification (OPA) for enhanced light-based remote sensing through pervasive scattering and/or turbulent environments. Improved dynamic range characteristics derived from the amplified passband of the OPA receiver combined with temporal discrimination in the image capture process will offset radiant power extinction losses, while defeating the deugradative effects & multipath dispersion and ,diffuse backscatter noise along the line-of-sight on resultant image contrast and range resolution. Our approach extends the operational utility of the detection channel in existing laser radar systems by increasing sensitivity to low-level target reffectivities, adding ballistic rejection of scatter and clutter in the range coordinate, and introducing multispectral and polarization discrimination capability in a wavelen~h-tunable, high gain nonlinear optical component with strong potential for source miniaturization. A key advantage of integrating amplification and tlequency up-conversion functions within a phasematched three-wave mixing parametric device is the ability to petiorm background-free imaging with eye-safe or longer inilared illumination wavelengths (idler) less susceptible to scatter without sacrificing quantum efficiency in the detection process at the corresponding signal wavelength. We report benchmark laboratory experiments in which the OPA gating process has been successfidly demonstrated in both transillumination and reflection test geometries with extended pathlengths representative of realistic coastal sea water and cumulus cloud scenarios. In these experiments, undistorted range-gated optica[ images tiom specular and diffuse reflectance targets were acquired through scattering attenuations exceeding ten orders cf magnitude which would be undetectable with traditional optical methods. The broadcast and gating pulses were derived ilom both millijoules 10 Hz picosecond (50-100 ps) and 250 KHz microjoule femtosecond (-150 fs) laser configurations to assess signal-to-noise and spatiaI resolution considerations as a fimction of scattering, integration time, and repetition rate. In addition, the technique was combined with a self-referencing Shack-Hartrnann wavetiont sensor to dia=~ose underlying phase signatures of weak refictive index gradients (OPD-M1 00) or persistent convective wakes (exhaust plumes, bubbles), and to perform adaptive optical compensation in visual fields exhibiting both turbulence and turbidity (OD=4). Comparative system anaiysis results relating image quaiity, optimal gate width, detectable range, and broadcast laser size versus operative atmospheric scattering conditions and search/dwell probability of detection criteria will also be presented.

  7. ISDSN Sensor System Phase One Test Report

    SciTech Connect (OSTI)

    Gail Heath

    2011-09-01

    This Phase 1 Test Report documents the test activities and results completed for the Idaho National Laboratory (INL) sensor systems that will be deployed in the meso-scale test bed (MSTB) at Florida International University (FIU), as outlined in the ISDSN-MSTB Test Plan. This report captures the sensor system configuration tested; test parameters, testing procedure, any noted changes from the implementation plan, acquired test data sets, and processed results.

  8. Giant magnetoresistive sensor

    DOE Patents [OSTI]

    Stearns, Daniel G. (Los Altos, CA); Vernon, Stephen P. (Pleasanton, CA); Ceglio, Natale M. (Livermore, CA); Hawryluk, Andrew M. (Modesto, CA)

    1999-01-01

    A magnetoresistive sensor element with a three-dimensional micro-architecture is capable of significantly improved sensitivity and highly localized measurement of magnetic fields. The sensor is formed of a multilayer film of alternately magnetic and nonmagnetic materials. The sensor is optimally operated in a current perpendicular to plane mode. The sensor is useful in magnetic read/write heads, for high density magnetic information storage and retrieval.

  9. Fiber optic geophysical sensors

    DOE Patents [OSTI]

    Homuth, Emil F. (Los Alamos, NM)

    1991-01-01

    A fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects.

  10. Digital Sensor Technology

    SciTech Connect (OSTI)

    Ted Quinn; Jerry Mauck; Richard Bockhorst; Ken Thomas

    2013-07-01

    The nuclear industry has been slow to incorporate digital sensor technology into nuclear plant designs due to concerns with digital qualification issues. However, the benefits of digital sensor technology for nuclear plant instrumentation are substantial in terms of accuracy, reliability, availability, and maintainability. This report demonstrates these benefits in direct comparisons of digital and analog sensor applications. It also addresses the qualification issues that must be addressed in the application of digital sensor technology.

  11. OVERVIEW ______ Sensors for Intelligent

    E-Print Network [OSTI]

    Wadley, Haydn

    OVERVIEW ______ Sensors for Intelligent Processing of Materials Haydn N.G. Wadley INTRODUCTION A sensor is a device that detects and measures some physical/chemical quantity and outputs and outputs an electrical signal which can be used to characterize the vibration. Numer- ous types of sensors

  12. Image Sensor Application

    E-Print Network [OSTI]

    Stanford University

    ; #12; #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 and Statistics #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 Expose 2 and Statistics #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 Expose 2

  13. Sensor system scaling issues

    SciTech Connect (OSTI)

    Canavan, G.H.

    1996-07-01

    A model for IR sensor performance is used to compare estimates of sensor cost effectiveness. Although data from aircraft sensors indicate a weaker scaling, their agreement is adequate to support the assessment of the benefits of operating up to the maximum altitude of most current UAVs.

  14. AIRBORNE, OPTICAL REMOTE SENSNG OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION

    SciTech Connect (OSTI)

    Jerry Myers

    2005-04-15

    Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. The scope of the work involved designing and developing an airborne, optical remote sensor capable of sensing methane and, if possible, ethane for the detection of natural gas pipeline leaks. Flight testing using a custom dual wavelength, high power fiber amplifier was initiated in February 2005. Ophir successfully demonstrated the airborne system, showing that it was capable of discerning small amounts of methane from a simulated pipeline leak. Leak rates as low as 150 standard cubic feet per hour (scf/h) were detected by the airborne sensor.

  15. Position Announcement Postdoctoral Research Associate Lidar Remote Sensing

    E-Print Network [OSTI]

    Salvaggio, Carl

    Position Announcement Postdoctoral Research Associate ­ Lidar Remote Sensing Department Summary: The employee will provide remote sensing expertise and conduct research in lidar remote sensing from advanced terrestrial, airborne, and satellite remote sensing platforms, including UASs (Unmanned

  16. Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring

    E-Print Network [OSTI]

    Fletcher, Richard Ribon

    We present a new type of non-contact sensor for use in ambulatory cardiac monitoring. The sensor operation is based on a microwave Doppler technique; however, instead of detecting the heart activity from a distance, the ...

  17. Oscillatory motion based measurement method and sensor for measuring wall shear stress due to fluid flow

    DOE Patents [OSTI]

    Armstrong, William D. (Laramie, WY); Naughton, Jonathan (Laramie, WY); Lindberg, William R. (Laramie, WY)

    2008-09-02

    A shear stress sensor for measuring fluid wall shear stress on a test surface is provided. The wall shear stress sensor is comprised of an active sensing surface and a sensor body. An elastic mechanism mounted between the active sensing surface and the sensor body allows movement between the active sensing surface and the sensor body. A driving mechanism forces the shear stress sensor to oscillate. A measuring mechanism measures displacement of the active sensing surface relative to the sensor body. The sensor may be operated under periodic excitation where changes in the nature of the fluid properties or the fluid flow over the sensor measurably changes the amplitude or phase of the motion of the active sensing surface, or changes the force and power required from a control system in order to maintain constant motion. The device may be operated under non-periodic excitation where changes in the nature of the fluid properties or the fluid flow over the sensor change the transient motion of the active sensor surface or change the force and power required from a control system to maintain a specified transient motion of the active sensor surface.

  18. 10 January 2009 PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING High Performance Computing in Remote Sensing

    E-Print Network [OSTI]

    Plaza, Antonio J.

    10 January 2009 PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING High Performance Computing in Remote Book ReviewBook Review High Performance Computing in Remote Sensing introduces the most recent advances in the incorporation of the high-performance computing (HPC) paradigm in remote sensing missions. Eighteen well

  19. Remote Sens. 2013, 5, 5173-5192; doi:10.3390/rs5105173 Remote Sensing

    E-Print Network [OSTI]

    California at Berkeley, University of

    Remote Sens. 2013, 5, 5173-5192; doi:10.3390/rs5105173 Remote Sensing ISSN 2072-4292 www: fire detection; geosynchronous; remote sensing; infrared; FUEGO 1. Introduction 1.1. Overview Fire for a geosynchronous OPEN ACCESS #12;Remote Sens. 2013, 5 5174 satellite with modern imaging detectors, software

  20. Remote Sens. 2009, 1, 519-533; doi:10.3390/rs1030519 Remote Sensing

    E-Print Network [OSTI]

    Anderson, Charles W.

    Remote Sens. 2009, 1, 519-533; doi:10.3390/rs1030519 Remote Sensing ISSN 2072-4292 www of Remotely Sensed Data Paul H. Evangelista 1, *, Thomas J. Stohlgren 2 , Jeffrey T. Morisette 2 and Sunil model (Maxent) for its application and performance in remotely sensing invasive Tamarix sp. Six Landsat

  1. INTERVAL METHODS IN REMOTE SENSING

    E-Print Network [OSTI]

    Ward, Karen

    INTERVAL METHODS IN REMOTE SENSING: RELIABLE SUB­DIVISION OF GEOLOGICAL AREAS David D. Coblentz, G of the locations which weren't that thoroughly analyzed. 1 #12; 2 The subdivision of a geological zone TOPOGRAPHIC INFORMATION One reason for subjectivity of the geological subdivision is the fact

  2. Geography 477 Introduction to Remote Sensing

    E-Print Network [OSTI]

    Frank, Thomas D.

    Geography 477 Introduction to Remote Sensing www.sdal.uiuc.edu Dr. Tom Frank 321 Davenport Hall tdfrank@uiuc.edu 333-7248 #12;Remotely-sensed images of light reflected or emitted from the earth of the earth's environments #12;Remote sensing is the science or art of deriving information about an object

  3. Challenges and Opportunities of Remote Sensing in

    E-Print Network [OSTI]

    Gilbes, Fernando

    Challenges and Opportunities of Remote Sensing in Caribbean Coastal Waters Fernando Gilbes-Santaella, Ph.D. Associate Professor Geological and Environmental Remote Sensing Laboratory Department of this presentation Discuss the potential and limitations for remote sensing of ocean color and coral reefs monitoring

  4. 11 Remote Sensing of Submerged Aquatic

    E-Print Network [OSTI]

    Purkis, Sam

    223 11 Remote Sensing of Submerged Aquatic Vegetation and Coral Reefs Sam Purkis and Chris, the remote sensing of SAV, as well as coral reefs, is considerably more challenging than for terrestrial differentia- tion of SAV and coral habitats using optical remote sensing demands specialized strategies, even

  5. Friday, March 17, 2006 LUNAR REMOTE SENSING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Friday, March 17, 2006 LUNAR REMOTE SENSING 1:30 p.m. Crystal Ballroom B Chairs: M. S. Robinson D variations due to photometry can mimic those attributed to composition in remote sensing data of planetary D. B. Remote Sensing and Geologic Studies of the Southeastern Quadrant of the Moon [#1815] We report

  6. Bylaws of the Center for Remote Sensing

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    DRAFT Bylaws of the Center for Remote Sensing Agricultural and Biological Engineering University for the conduct and operation of the Center for Remote Sensing (CRS) at the University of Florida (UF). The CRS and international recognition in research, teaching, and outreach for cutting-edge technologies in remote sensing

  7. Remote Sensing of the Rob Holman1

    E-Print Network [OSTI]

    Haller, Merrick

    Remote Sensing of the Nearshore Rob Holman1 and Merrick C. Haller2 1 College of Earth, Ocean- ate temporal or spatial density or at reasonable logistical or financial costs. Remote sensing algo- rithms by which the most important geophysical variables can be estimated from remote sensing

  8. Sensor mount assemblies and sensor assemblies

    DOE Patents [OSTI]

    Miller, David H. (Redondo Beach, CA)

    2012-04-10

    Sensor mount assemblies and sensor assemblies are provided. In an embodiment, by way of example only, a sensor mount assembly includes a busbar, a main body, a backing surface, and a first finger. The busbar has a first end and a second end. The main body is overmolded onto the busbar. The backing surface extends radially outwardly relative to the main body. The first finger extends axially from the backing surface, and the first finger has a first end, a second end, and a tooth. The first end of the first finger is disposed on the backing surface, and the tooth is formed on the second end of the first finger.

  9. Changing dynamics of spontaneous waves during retinal development: a novel panretinal perspective achieved with the Active Pixel Sensor (APS) 4,096 electrodes array 

    E-Print Network [OSTI]

    Hennig, Matthias; Sernagor, Evelyne; Maccione, Alessandro; Gandolfo, Mauro; Eglen, Stephen; Berdondini, Luca

    2010-07-02

    The developing retina exhibits spontaneous waves of activity spreading across the ganglion cell layer. These waves are present only during a limited perinatal period, and they are known to play important roles during the ...

  10. T-606: Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data

    Broader source: Energy.gov [DOE]

    Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data.

  11. Further Development at JET of Remote Digital Photogrammetry Techniques and Remote Welding Under Conditions of Restricted Access

    E-Print Network [OSTI]

    Further Development at JET of Remote Digital Photogrammetry Techniques and Remote Welding Under Conditions of Restricted Access

  12. The Remote Photogrammetric Survey and Engineering Analysis of the Divertor Structure during JET’s Remote Tile Exchange

    E-Print Network [OSTI]

    The Remote Photogrammetric Survey and Engineering Analysis of the Divertor Structure during JET’s Remote Tile Exchange

  13. Wireless Magnetic Sensor Applications in Transportation Infrastructure

    E-Print Network [OSTI]

    Sanchez, Rene Omar

    2012-01-01

    of wireless magnetic sensors in Intelligent Trans- portationof wireless magnetic sensors in Intelligent Transportationmagnetic sensors for different Intelligent Transportation

  14. INTELLIGENT SENSOR VALIDATION AND SENSOR FUSION FOR RELIABILITY AND SAFETY

    E-Print Network [OSTI]

    Agogino, Alice M.

    1 INTELLIGENT SENSOR VALIDATION AND SENSOR FUSION FOR RELIABILITY AND SAFETY ENHANCEMENT IN VEHICLE #12;2 Intelligent Sensor Validation and Sensor Fusion for Reliability and Safety Enhancement acknowledge the help of PATH engineers Pete Devlin, Seibum Choi, and Leon Chen. II. Keywords Sensor Validation

  15. Performance of an exhaled nitric oxide and carbon dioxide sensor using quantum cascade laser-

    E-Print Network [OSTI]

    Performance of an exhaled nitric oxide and carbon dioxide sensor using quantum cascade laser- based- strumentation Engineers. DOI: 10.1117/1.2747608 Keywords: breath analysis; nitric oxide; carbon dioxide sampling, NO is measured over time during exhalation. Offline sampling has the advantages of remote

  16. Wireless Sensor Network to Satellite Master thesis in Information and Communication Technology

    E-Print Network [OSTI]

    Brest, Université de

    . Wireless Sensor Network (WSN) currently is a solution for many practical problems in emer- gency and environment controlling. Obviously, WSN is deployed in many regions and works effec- tively to monitor weather opportunities in cooperation between satellite and WSN to control remotely the distant WSN, i.e ocean, desert

  17. Working Group Report: Sensors

    SciTech Connect (OSTI)

    Artuso, M.; et al.,

    2013-10-18

    Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include ionization deposited, phonons created, or light emitted from excitations of the material. The individual sensors are then typically arrayed for detection of individual particles or groups of particles. Mounting of new, ever higher performance experiments, often depend on advances in sensors in a range of performance characteristics. These performance metrics can include position resolution for passing particles, time resolution on particles impacting the sensor, and overall rate capabilities. In addition the feasible detector area and cost frequently provides a limit to what can be built and therefore is often another area where improvements are important. Finally, radiation tolerance is becoming a requirement in a broad array of devices. We present a status report on a broad category of sensors, including challenges for the future and work in progress to solve those challenges.

  18. High-temperature sensor

    DOE Patents [OSTI]

    Not Available

    1981-01-29

    A high temperature sensor is described which includes a pair of electrical conductors separated by a mass of electrical insulating material. The insulating material has a measurable resistivity within the sensor that changes in relation to the temperature of the insulating material within a high temperature range (1000 to 2000/sup 0/K). When required, the sensor can be encased within a ceramic protective coating.

  19. Rolamite acceleration sensor

    DOE Patents [OSTI]

    Abbin, J.P.; Briner, C.F.; Martin, S.B.

    1993-12-21

    A rolamite acceleration sensor is described which has a failsafe feature including a housing, a pair of rollers, a tension band wrapped in an S shaped fashion around the rollers, wherein the band has a force-generation cut out and a failsafe cut out or weak portion. The failsafe cut out or weak portion breaks when the sensor is subjected to an excessive acceleration so that the sensor fails in an open circuit (non-conducting) state permanently. 6 figures.

  20. Contact stress sensor

    DOE Patents [OSTI]

    Kotovsky, Jack (Oakland, CA)

    2012-02-07

    A contact stress sensor includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a thermal compensator and a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.

  1. Contact stress sensor

    DOE Patents [OSTI]

    Kotovsky, Jack

    2014-02-11

    A method for producing a contact stress sensor that includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.

  2. Disposable remote zero headspace extractor

    DOE Patents [OSTI]

    Hand, Julie J. (Idaho Falls, ID); Roberts, Mark P. (Arco, ID)

    2006-03-21

    The remote zero headspace extractor uses a sampling container inside a stainless steel vessel to perform toxicity characteristics leaching procedure to analyze volatile organic compounds. The system uses an in line filter for ease of replacement. This eliminates cleaning and disassembly of the extractor. All connections are made with quick connect fittings which can be easily replaced. After use, the bag can be removed and disposed of, and a new sampling container is inserted for the next extraction.

  3. Intake Air Oxygen Sensor

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ignition can occur at elevated gas temperatures and with aged sensor Next Steps FMEA Study to understand ignition risk for failure modes identified by FMEA Identify...

  4. Fiber optic geophysical sensors

    DOE Patents [OSTI]

    Homuth, E.F.

    1991-03-19

    A fiber optic geophysical sensor is described in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects. 2 figures.

  5. SDRT: A Reliable Data Transport Protocol for Underwater Sensor Networks

    E-Print Network [OSTI]

    Cui, Jun-Hong

    activities such as scientific exploration and commercial exploitation, underwater sensor networks empower us networks, for mission critical applications, reliable data transport is demanded in under- water sensor channels is limited and depends on both transmission range and frequency [8], [24], [5], [6]. According

  6. Optical sensor of magnetic fields

    DOE Patents [OSTI]

    Butler, M.A.; Martin, S.J.

    1986-03-25

    An optical magnetic field strength sensor for measuring the field strength of a magnetic field comprising a dilute magnetic semi-conductor probe having first and second ends, longitudinally positioned in the magnetic field for providing Faraday polarization rotation of light passing therethrough relative to the strength of the magnetic field. Light provided by a remote light source is propagated through an optical fiber coupler and a single optical fiber strand between the probe and the light source for providing a light path therebetween. A polarizer and an apparatus for rotating the polarization of the light is provided in the light path and a reflector is carried by the second end of the probe for reflecting the light back through the probe and thence through the polarizer to the optical coupler. A photo detector apparatus is operably connected to the optical coupler for detecting and measuring the intensity of the reflected light and comparing same to the light source intensity whereby the magnetic field strength may be calculated.

  7. Soil moisture variability of root zone profiles within SMEX02 remote sensing footprints

    E-Print Network [OSTI]

    as the par- titioning of incoming solar radiation and long wave radia- tion into outgoing long wave radiation.e., various active and passive microwave sensors), which provide mean sur- face soil moisture (0­5 cm) values at large spatial scales, are only recently available [24,25,39]. Microwave sensors have many advantages

  8. Aircraft Cabin Environmental Quality Sensors

    E-Print Network [OSTI]

    Gundel, Lara

    2010-01-01

    Weimar, and H. Ulmer, MEMS Gas-Sensor Array for Monitoringreveal that a MEMS-based infrared sensor is on the horizon (4P Photacoustic Sensor Platform A4.36-37 A4.38 MEMS; 0-100%,

  9. MEMS Resonant Strain Sensor Integration

    E-Print Network [OSTI]

    Myers, David Richard

    2010-01-01

    down microelectromechanical MEMS sensors for high-g munitionof making harsh environment MEMS sensors is the ability toG load forces. SiC MEMS sensors and actuators have potential

  10. Fabrication of 3D Silicon Sensors

    SciTech Connect (OSTI)

    Kok, A.; Hansen, T.E.; Hansen, T.A.; Lietaer, N.; Summanwar, A.; Kenney, C.; Hasi, J.; Da Via, C.; Parker, S.I.; /Hawaii U.

    2012-06-06

    Silicon sensors with a three-dimensional (3-D) architecture, in which the n and p electrodes penetrate through the entire substrate, have many advantages over planar silicon sensors including radiation hardness, fast time response, active edge and dual readout capabilities. The fabrication of 3D sensors is however rather complex. In recent years, there have been worldwide activities on 3D fabrication. SINTEF in collaboration with Stanford Nanofabrication Facility have successfully fabricated the original (single sided double column type) 3D detectors in two prototype runs and the third run is now on-going. This paper reports the status of this fabrication work and the resulted yield. The work of other groups such as the development of double sided 3D detectors is also briefly reported.

  11. QueueTrak: Automated Line Length Detection using a Wireless Sensor Network

    E-Print Network [OSTI]

    Whitehouse, Kamin

    , it uses a series of custom active infrared sensors to detect the length of a line in a store or restaurant the design, implementation, and evaluation of QueueTrak, a sensor network that measures the length of linesQueueTrak: Automated Line Length Detection using a Wireless Sensor Network Jared Alexander, Matthew

  12. Sensors for Environmental Observatories

    E-Print Network [OSTI]

    Hamilton, Michael P.

    Sensors for Environmental Observatories Report of the NSF-Sponsored Workshop December 2004 #12 States of America. 2005. #12;Sensors for Environmental Observatories Report of the NSF Sponsored Workshop Evaluation Center (WTEC), Inc. 4800 Roland Avenue Baltimore, Maryland 21210 #12;In recent years

  13. Hardware Components: Sensors, Actuators,

    E-Print Network [OSTI]

    Hu, Fei

    in an electric field light-electric effects; magnetic effects; ... #12;3 5 Example: Acceleration Sensor MEMS connected to mass change Detect change in resistance and model acceleration iPhones have MEMS accelerometers Microelectromechanical systems (~ 1 to 100 µm) 6 Example: Acceleration Sensor Alternative

  14. Preliminary Hazard Analysis for the Remote-Handled Low-Level Waste Disposal Facility

    SciTech Connect (OSTI)

    Lisa Harvego; Mike Lehto

    2010-02-01

    The need for remote handled low level waste (LLW) disposal capability has been identified. A new onsite, remote-handled LLW disposal facility has been identified as the highest ranked alternative for providing continued, uninterrupted remote-handled LLW disposal capability for remote-handled LLW that is generated as part of the nuclear mission of the Idaho National Laboratory and from spent nuclear fuel processing activities at the Naval Reactors Facility. Historically, this type of waste has been disposed of at the Radioactive Waste Management Complex. Disposal of remote-handled LLW in concrete disposal vaults at the Radioactive Waste Management Complex will continue until the facility is full or until it must be closed in preparation for final remediation of the Subsurface Disposal Area (approximately at the end of Fiscal Year 2017). This document supports the conceptual design for the proposed remote-handled LLW disposal facility by providing an initial nuclear facility hazard categorization and by identifying potential hazards for processes associated with onsite handling and disposal of remote-handled LLW.

  15. Preliminary Hazard Analysis for the Remote-Handled Low-Level Waste Disposal Project

    SciTech Connect (OSTI)

    Lisa Harvego; Mike Lehto

    2010-10-01

    The need for remote handled low level waste (LLW) disposal capability has been identified. A new onsite, remote-handled LLW disposal facility has been identified as the highest ranked alternative for providing continued, uninterrupted remote-handled LLW disposal capability for remote-handled LLW that is generated as part of the nuclear mission of the Idaho National Laboratory and from spent nuclear fuel processing activities at the Naval Reactors Facility. Historically, this type of waste has been disposed of at the Radioactive Waste Management Complex. Disposal of remote-handled LLW in concrete disposal vaults at the Radioactive Waste Management Complex will continue until the facility is full or until it must be closed in preparation for final remediation of the Subsurface Disposal Area (approximately at the end of Fiscal Year 2017). This document supports the conceptual design for the proposed remote-handled LLW disposal facility by providing an initial nuclear facility hazard categorization and by identifying potential hazards for processes associated with onsite handling and disposal of remote-handled LLW.

  16. Preliminary Hazard Analysis for the Remote-Handled Low-Level Waste Disposal Facility

    SciTech Connect (OSTI)

    Lisa Harvego; Mike Lehto

    2010-05-01

    The need for remote handled low level waste (LLW) disposal capability has been identified. A new onsite, remote-handled LLW disposal facility has been identified as the highest ranked alternative for providing continued, uninterrupted remote-handled LLW disposal capability for remote-handled LLW that is generated as part of the nuclear mission of the Idaho National Laboratory and from spent nuclear fuel processing activities at the Naval Reactors Facility. Historically, this type of waste has been disposed of at the Radioactive Waste Management Complex. Disposal of remote-handled LLW in concrete disposal vaults at the Radioactive Waste Management Complex will continue until the facility is full or until it must be closed in preparation for final remediation of the Subsurface Disposal Area (approximately at the end of Fiscal Year 2017). This document supports the conceptual design for the proposed remote-handled LLW disposal facility by providing an initial nuclear facility hazard categorization and by identifying potential hazards for processes associated with onsite handling and disposal of remote-handled LLW.

  17. Remote, synchronous, hands-on ultrasound education

    E-Print Network [OSTI]

    2015-01-01

    Variability in ultrasound education among emergency medicineHands-On Ultrasound Education Stephen Winn, PhD, 1 PeterAugust 25, 16. Remote Medical Education Conference, Sydney,

  18. Request for Information -- Remote Alaskan Communities Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Communities Energy Efficiency Competition As part of President Obama's commitment to fight climate change and assist remote Alaskan Communities, the Energy Department (DOE) is...

  19. A remote image analysis terminal 

    E-Print Network [OSTI]

    Daigle, Lucien Don

    1976-01-01

    A APPENDIX B APPENDIX C APPENDIX D VITA 140 142 157 157 162 163 164 170 179 190 234 Vrzt I, I S'I' III' I: I OIIRI:. 8 The Remote Image Analysis Terminal System Block Diagram The Digital Interface The Analog Interface Digitizer...- flow Chart Loading and Transmission of Position Coordinates Page 59 61 63 65 66 II-22 II-23 Keyboard Block Diagram Generation and Transmission cE a Hex Digit 69 70 II- 24 I I-25 Opcode Table 73 Partial Block Diagram...

  20. Remote Access | The Ames Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners *Reindustrialization ReindustrializationEnergy2015Remote

  1. Remote Desktop | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners *ReindustrializationEnergy Remote Alaskan

  2. Remote Sensing R. E. Mcintosh

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners *ReindustrializationEnergy Remote AlaskanJ.E.M. Goldsmith,R. E.

  3. Remote Sens. 2011, 3, 1427-1446; doi:10.3390/rs3071427 Remote Sensing

    E-Print Network [OSTI]

    Keeton, William S.

    carbon dioxide and potentially complex interactions with other anthropogenic stressors [4,5] requireRemote Sens. 2011, 3, 1427-1446; doi:10.3390/rs3071427 Remote Sensing ISSN 2072-4292 www.mdpi.com/journal/remotesensing Article Evaluating the Remote Sensing and Inventory-Based Estimation of Biomass in the Western Carpathians

  4. Sensor Relocation with Mobile Sensors: Design, Implementation, and Evaluation

    E-Print Network [OSTI]

    Schindelhauer, Christian

    Sensor Relocation with Mobile Sensors: Design, Implementation, and Evaluation Jie Teng, Tim on implementation and evaluation due to the difficulty of building mobile sensors. In the litera- ture, some--Mobile sensors are useful in many environments because they can move to increase the sensing coverage

  5. Sensor Grid: Integration of Wireless Sensor Networks and the Grid

    E-Print Network [OSTI]

    Teo, Yong-Meng

    With the convergence of technologies such as MEMS sensor devices, wireless networking, and low-power em- beddedSensor Grid: Integration of Wireless Sensor Networks and the Grid Hock Beng Lim1 , Yong Meng Teo1 Microsystems, Inc. E-mail: [limhb, teoym]@comp.nus.edu.sg Abstract Wireless sensor networks have emerged

  6. SNS Target Test Facility: Prototype Hg Operations and Remote Handling Tests P. T. Spampinato, T. W. Burgess, J. B. Chesser, V. B. Graves, and S.L. Schrock

    E-Print Network [OSTI]

    McDonald, Kirk

    SNS Target Test Facility: Prototype Hg Operations and Remote Handling Tests P. T. Spampinato, T. W Neutron Source, Target Test Facility is a full-scale replica of the mercury-target flow loop prototypic target, and numerous pressure sensors. Outside of the loop enclosure, tests were done on a new

  7. Intelligent Sensor Validation And Sensor Fusion For Reliability And Safety Enhancement In Vehicle Control

    E-Print Network [OSTI]

    Agogino, Alice; Goebel, Kai; Alag, Sanam

    1995-01-01

    A Methodology for Intelligent Sensor Validation, Fusion andA Framework for Intelligent Sensor Validation, SensorA Methodology for Intelligent Sensor Validation and Fusion

  8. Methods and systems for remote detection of gases

    DOE Patents [OSTI]

    Johnson, Timothy J

    2012-09-18

    Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art.

  9. Methods and systems for remote detection of gases

    DOE Patents [OSTI]

    Johnson, Timothy J. (Pasco, WA)

    2007-11-27

    Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art.

  10. AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION

    SciTech Connect (OSTI)

    Jerry Myers

    2003-11-12

    Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. This second six-month technical report summarizes the progress made towards defining, designing, and developing the hardware and software segments of the airborne, optical remote methane and ethane sensor. The most challenging task to date has been to identify a vendor capable of designing and developing a light source with the appropriate output wavelength and power. This report will document the work that has been done to identify design requirements, and potential vendors for the light source. Significant progress has also been made in characterizing the amount of light return available from a remote target at various distances from the light source. A great deal of time has been spent conducting laboratory and long-optical path target reflectance measurements. This is important since it helps to establish the overall optical output requirements for the sensor. It also reduces the relative uncertainty and risk associated with developing a custom light source. The data gathered from the optical path testing has been translated to the airborne transceiver design in such areas as: fiber coupling, optical detector selection, gas filters, and software analysis. Ophir will next, summarize the design progress of the transceiver hardware and software development. Finally, Ophir will discuss remaining project issues that may impact the success of the project.

  11. Remotely readable fiber optic compass

    DOE Patents [OSTI]

    Migliori, A.; Swift, G.W.; Garrett, S.L.

    1985-04-30

    A remotely readable fiber optic compass. A sheet polarizer is affixed to a magnet rotatably mounted in a compass body, such that the polarizer rotates with the magnet. The optical axis of the sheet polarizer is preferably aligned with the north-south axis of the magnet. A single excitation light beam is divided into four identical beams, two of which are passed through the sheet polarizer and through two fixed polarizing sheets which have their optical axes at right angles to one another. The angle of the compass magnet with respect to a fixed axis of the compass body can be determined by measuring the ratio of the intensities of the two light beams. The remaining ambiguity as to which of the four possible quadrants the magnet is pointing to is resolved by the second pair of light beams, which are passed through the sheet polarizer at positions which are transected by two semicircular opaque strips formed on the sheet polarizer. The incoming excitation beam and the four return beams are communicated by means of optical fibers, giving a remotely readable compass which has no electrical parts.

  12. Wireless passive radiation sensor

    DOE Patents [OSTI]

    Pfeifer, Kent B; Rumpf, Arthur N; Yelton, William G; Limmer, Steven J

    2013-12-03

    A novel measurement technique is employed using surface acoustic wave (SAW) devices, passive RF, and radiation-sensitive films to provide a wireless passive radiation sensor that requires no batteries, outside wiring, or regular maintenance. The sensor is small (<1 cm.sup.2), physically robust, and will operate unattended for decades. In addition, the sensor can be insensitive to measurement position and read distance due to a novel self-referencing technique eliminating the need to measure absolute responses that are dependent on RF transmitter location and power.

  13. DEVELOPMENT OF A SENSOR NETWORK TEST BED FOR ISD MATERIALS AND STRUCUTRAL CONDITION MONITORING

    SciTech Connect (OSTI)

    Zeigler, K.; Ferguson, B.; Karapatakis, D.; Herbst, C.; Stripling, C.

    2011-07-06

    The P Reactor at the Savannah River Site is one of the first reactor facilities in the US DOE complex that has been placed in its end state through in situ decommissioning (ISD). The ISD end state consists of a grout-filled concrete civil structure within the concrete frame of the original building. To evaluate the feasibility and utility of remote sensors to provide verification of ISD system conditions and performance characteristics, an ISD Sensor Network Test Bed has been designed and deployed at the Savannah River National Laboratory. The test bed addresses the DOE-EM Technology Need to develop a remote monitoring system to determine and verify ISD system performance. Commercial off-the-shelf sensors have been installed on concrete blocks taken from walls of the P Reactor Building. Deployment of this low-cost structural monitoring system provides hands-on experience with sensor networks. The initial sensor system consists of: (1) Groutable thermistors for temperature and moisture monitoring; (2) Strain gauges for crack growth monitoring; (3) Tiltmeters for settlement monitoring; and (4) A communication system for data collection. Preliminary baseline data and lessons learned from system design and installation and initial field testing will be utilized for future ISD sensor network development and deployment.

  14. Hyperspectral Remote Sensing of Tropical Grass Quality and Quantity

    E-Print Network [OSTI]

    Hyperspectral Remote Sensing of Tropical Grass Quality and Quantity Onisimo Mutanga 7 April 2004, The Netherlands Prof. W. J. Bond University of Cape Town, South Africa #12;Hyperspectral Remote Sensing 1.2 Hyperspectral remote sensing

  15. Snowpack spatial variability: towards understanding its effect on remote sensing

    E-Print Network [OSTI]

    Marshall, Hans-Peter

    Snowpack spatial variability: towards understanding its effect on remote sensing measurements spatial variability: towards understanding its effect on remote sensing mea- surements and snow slope large errors in these basin estimates. Remote sensing measurements offer a promising alternative, due

  16. Electromagnetic Radiation REFERENCE: Remote Sensing of

    E-Print Network [OSTI]

    Gilbes, Fernando

    ;2 Electromagnetic Energy Interactions Energy recorded by remote sensing systems undergoes fundamental interactions that should be understood to properly interpret the remotely sensed data. For example, if the energy being nanosecond (10-9 s). The electromagnetic wave consists of two fluctuating fields--one electric and the other

  17. Geographically distributed environmental sensor system

    DOE Patents [OSTI]

    French, Patrick; Veatch, Brad; O'Connor, Mike

    2006-10-03

    The present invention is directed to a sensor network that includes a number of sensor units and a base unit. The base station operates in a network discovery mode (in which network topology information is collected) in a data polling mode (in which sensed information is collected from selected sensory units). Each of the sensor units can include a number of features, including an anemometer, a rain gauge, a compass, a GPS receiver, a barometric pressure sensor, an air temperature sensor, a humidity sensor, a level, and a radiant temperature sensor.

  18. Project Execution Plan for the Remote Handled Low-Level Waste Disposal Project

    SciTech Connect (OSTI)

    Danny Anderson

    2014-07-01

    As part of ongoing cleanup activities at the Idaho National Laboratory (INL), closure of the Radioactive Waste Management Complex (RWMC) is proceeding under the Comprehensive Environmental Response, Compensation, and Liability Act (42 USC 9601 et seq. 1980). INL-generated radioactive waste has been disposed of at RWMC since 1952. The Subsurface Disposal Area (SDA) at RWMC accepted the bulk of INL’s contact and remote-handled low-level waste (LLW) for disposal. Disposal of contact-handled LLW and remote-handled LLW ion-exchange resins from the Advanced Test Reactor in the open pit of the SDA ceased September 30, 2008. Disposal of remote-handled LLW in concrete disposal vaults at RWMC will continue until the facility is full or until it must be closed in preparation for final remediation of the SDA (approximately at the end of fiscal year FY 2017). The continuing nuclear mission of INL, associated ongoing and planned operations, and Naval spent fuel activities at the Naval Reactors Facility (NRF) require continued capability to appropriately dispose of contact and remote handled LLW. A programmatic analysis of disposal alternatives for contact and remote-handled LLW generated at INL was conducted by the INL contractor in Fiscal Year 2006; subsequent evaluations were completed in Fiscal Year 2007. The result of these analyses was a recommendation to the Department of Energy (DOE) that all contact-handled LLW generated after September 30, 2008, be disposed offsite, and that DOE proceed with a capital project to establish replacement remote-handled LLW disposal capability. An analysis of the alternatives for providing replacement remote-handled LLW disposal capability has been performed to support Critical Decision-1. The highest ranked alternative to provide this required capability has been determined to be the development of a new onsite remote-handled LLW disposal facility to replace the existing remote-handled LLW disposal vaults at the SDA. Several offsite DOE and commercial disposal options exist for contact-handled LLW; however, offsite disposal options are either not currently available (i.e., commercial disposal facilities), practical, or cost-effective for all remote-handled LLW streams generated at INL. Offsite disposal of all INL and tenant-generated remote-handled waste is further complicated by issues associated with transporting highly radioactive waste in commerce; and infrastructure and processing changes at the generating facilities, specifically NRF, that would be required to support offsite disposal. The INL Remote-Handled LLW Disposal Project will develop a new remote handled LLW disposal facility to meet mission-critical, remote-handled LLW disposal needs. A formal DOE decision to proceed with the project has been made in accordance with the requirements of National Environmental Policy Act (42 USC§ 4321 et seq.). Remote-handled LLW is generated from nuclear programs conducted at INL, including spent nuclear fuel handling and operations at NRF and operations at the Advanced Test Reactor. Remote-handled LLW also will be generated by new INL programs and from segregation and treatment (as necessary) of remote handled scrap and waste currently stored in the Radioactive Scrap and Waste Facility at the Materials and Fuels Complex.

  19. Magnetic infrasound sensor

    DOE Patents [OSTI]

    Mueller, Fred M. (Los Alamos, NM); Bronisz, Lawrence (Los Alamos, NM); Grube, Holger (Los Alamos, NM); Nelson, David C. (Santa Fe, NM); Mace, Jonathan L. (Los Alamos, NM)

    2006-11-14

    A magnetic infrasound sensor is produced by constraining a permanent magnet inside a magnetic potential well above the surface of superconducting material. The magnetic infrasound sensor measures the position or movement of the permanent magnet within the magnetic potential well, and interprets the measurements. Infrasound sources can be located and characterized by combining the measurements from one or more infrasound sensors. The magnetic infrasound sensor can be tuned to match infrasound source types, resulting in better signal-to-noise ratio. The present invention can operate in frequency modulation mode to improve sensitivity and signal-to-noise ratio. In an alternate construction, the superconductor can be levitated over a magnet or magnets. The system can also be driven, so that time resolved perturbations are sensed, resulting in a frequency modulation version with improved sensitivity and signal-to-noise ratio.

  20. Integrated optical sensor

    DOE Patents [OSTI]

    Watkins, Arthur D. (Idaho Falls, ID); Smartt, Herschel B. (Idaho Falls, ID); Taylor, Paul L. (Idaho Falls, ID)

    1994-01-01

    An integrated optical sensor for arc welding having multifunction feedback control. The sensor, comprising generally a CCD camera and diode laser, is positioned behind the arc torch for measuring weld pool position and width, standoff distance, and post-weld centerline cooling rate. Computer process information from this sensor is passed to a controlling computer for use in feedback control loops to aid in the control of the welding process. Weld pool position and width are used in a feedback loop, by the weld controller, to track the weld pool relative to the weld joint. Sensor standoff distance is used in a feedback loop to control the contact tip to base metal distance during the welding process. Cooling rate information is used to determine the final metallurgical state of the weld bead and heat affected zone, thereby controlling post-weld mechanical properties.

  1. Integrated optical sensor

    DOE Patents [OSTI]

    Watkins, A.D.; Smartt, H.B.; Taylor, P.L.

    1994-01-04

    An integrated optical sensor for arc welding having multifunction feedback control is described. The sensor, comprising generally a CCD camera and diode laser, is positioned behind the arc torch for measuring weld pool position and width, standoff distance, and post-weld centerline cooling rate. Computer process information from this sensor is passed to a controlling computer for use in feedback control loops to aid in the control of the welding process. Weld pool position and width are used in a feedback loop, by the weld controller, to track the weld pool relative to the weld joint. Sensor standoff distance is used in a feedback loop to control the contact tip to base metal distance during the welding process. Cooling rate information is used to determine the final metallurgical state of the weld bead and heat affected zone, thereby controlling post-weld mechanical properties. 6 figures.

  2. Capacitance pressure sensor

    DOE Patents [OSTI]

    Eaton, William P. (Tijeras, NM); Staple, Bevan D. (Albuquerque, NM); Smith, James H. (Albuquerque, NM)

    2000-01-01

    A microelectromechanical (MEM) capacitance pressure sensor integrated with electronic circuitry on a common substrate and a method for forming such a device are disclosed. The MEM capacitance pressure sensor includes a capacitance pressure sensor formed at least partially in a cavity etched below the surface of a silicon substrate and adjacent circuitry (CMOS, BiCMOS, or bipolar circuitry) formed on the substrate. By forming the capacitance pressure sensor in the cavity, the substrate can be planarized (e.g. by chemical-mechanical polishing) so that a standard set of integrated circuit processing steps can be used to form the electronic circuitry (e.g. using an aluminum or aluminum-alloy interconnect metallization).

  3. Modular sensor network node

    DOE Patents [OSTI]

    Davis, Jesse Harper Zehring (Berkeley, CA); Stark, Jr., Douglas Paul (Tracy, CA); Kershaw, Christopher Patrick (Hayward, CA); Kyker, Ronald Dean (Livermore, CA)

    2008-06-10

    A distributed wireless sensor network node is disclosed. The wireless sensor network node includes a plurality of sensor modules coupled to a system bus and configured to sense a parameter. The parameter may be an object, an event or any other parameter. The node collects data representative of the parameter. The node also includes a communication module coupled to the system bus and configured to allow the node to communicate with other nodes. The node also includes a processing module coupled to the system bus and adapted to receive the data from the sensor module and operable to analyze the data. The node also includes a power module connected to the system bus and operable to generate a regulated voltage.

  4. Complex pendulum biomass sensor

    DOE Patents [OSTI]

    Hoskinson, Reed L. (Rigby, ID); Kenney, Kevin L. (Idaho Falls, ID); Perrenoud, Ben C. (Rigby, ID)

    2007-12-25

    A complex pendulum system biomass sensor having a plurality of pendulums. The plurality of pendulums allow the system to detect a biomass height and density. Each pendulum has an angular deflection sensor and a deflector at a unique height. The pendulums are passed through the biomass and readings from the angular deflection sensors are fed into a control system. The control system determines whether adjustment of machine settings is appropriate and either displays an output to the operator, or adjusts automatically adjusts the machine settings, such as the speed, at which the pendulums are passed through the biomass. In an alternate embodiment, an entanglement sensor is also passed through the biomass to determine the amount of biomass entanglement. This measure of entanglement is also fed into the control system.

  5. REMOTE DATA ACQUISITION USING LABVIEW A Design Project Report

    E-Print Network [OSTI]

    Ruina, Andy L.

    REMOTE DATA ACQUISITION USING LABVIEW A Design Project Report Presented to the Engineering Division Master of Electrical Engineering Program Cornell University Design Project Report Project Title: Remote

  6. U-010:HP Onboard Administrator Unspecified Flaw Lets Remote Users...

    Broader source: Energy.gov (indexed) [DOE]

    Manager Unspecified Flaw Lets Remote Users Gain Unauthorized Access V-120: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control...

  7. Advanced polychromator systems for remote chemical sensing (LDRD...

    Office of Scientific and Technical Information (OSTI)

    polychromator systems for remote chemical sensing (LDRD project 52575). Citation Details In-Document Search Title: Advanced polychromator systems for remote chemical sensing (LDRD...

  8. Sensor Characteristics Reference Guide

    SciTech Connect (OSTI)

    none,

    2013-04-01

    The purpose of the guide is to inform building owners and operators of the current status, capabilities, and limitations of sensor technologies. It is hoped that this guide will aid in the design and procurement process and result in successful implementation of building sensor and control systems. DOE will also use this guide to identify research priorities, develop future specifications for potential market adoption, and provide market clarity through unbiased information.

  9. Solid state oxygen sensor

    DOE Patents [OSTI]

    Garzon, Fernando H. (Santa Fe, NM); Brosha, Eric L. (Los Alamos, NM)

    1997-01-01

    A potentiometric oxygen sensor is formed having a logarithmic response to a differential oxygen concentration while operating as a Nernstian-type sensor. Very thin films of mixed conducting oxide materials form electrode services while permitting diffusional oxygen access to the interface between the zirconia electrolyte and the electrode. Diffusion of oxygen through the mixed oxide is not rate-limiting. Metal electrodes are not used so that morphological changes in the electrode structure do not occur during extended operation at elevated temperatures.

  10. Deployment and organization strategies for sampling- interpolation sensor networks

    E-Print Network [OSTI]

    Liaskovitis, Periklis G.

    2009-01-01

    Conference on Intelligent Sensors, Sensor Networks andConference on Intelligent Sensors, Sensor Networks andprice: sensor placements ought to be done in an intelligent

  11. NOx Sensor Development

    SciTech Connect (OSTI)

    Woo, L Y; Glass, R S

    2010-11-01

    NO{sub x} compounds, specifically NO and NO{sub 2}, are pollutants and potent greenhouse gases. Compact and inexpensive NO{sub x} sensors are necessary in the next generation of diesel (CIDI) automobiles to meet government emission requirements and enable the more rapid introduction of more efficient, higher fuel economy CIDI vehicles. Because the need for a NO{sub x} sensor is recent and the performance requirements are extremely challenging, most are still in the development phase. Currently, there is only one type of NO{sub x} sensor that is sold commercially, and it seems unlikely to meet more stringent future emission requirements. Automotive exhaust sensor development has focused on solid-state electrochemical technology, which has proven to be robust for in-situ operation in harsh, high-temperature environments (e.g., the oxygen stoichiometric sensor). Solid-state sensors typically rely on yttria-stabilized zirconia (YSZ) as the oxygen-ion conducting electrolyte and then target different types of metal or metal-oxide electrodes to optimize the response. Electrochemical sensors can be operated in different modes, including amperometric (a current is measured) and potentiometric (a voltage is measured), both of which employ direct current (dc) measurements. Amperometric operation is costly due to the electronics necessary to measure the small sensor signal (nanoampere current at ppm NO{sub x} levels), and cannot be easily improved to meet the future technical performance requirements. Potentiometric operation has not demonstrated enough promise in meeting long-term stability requirements, where the voltage signal drift is thought to be due to aging effects associated with electrically driven changes, both morphological and compositional, in the sensor. Our approach involves impedancemetric operation, which uses alternating current (ac) measurements at a specified frequency. The approach is described in detail in previous reports and several publications. Briefly, impedancemetric operation has shown the potential to overcome the drawbacks of other approaches, including higher sensitivity towards NO{sub x}, better long-term stability, potential for subtracting out background interferences, total NO{sub x} measurement, and lower cost materials and operation. Past LLNL research and development efforts have focused on characterizing different sensor materials and understanding complex sensing mechanisms. Continued effort has led to improved prototypes with better performance, including increased sensitivity (to less than 5 ppm) and long-term stability, with more appropriate designs for mass fabrication, including incorporation of an alumina substrate with an imbedded heater. Efforts in the last year to further improve sensor robustness have led to successful engine dynamometer testing with prototypes mounted directly in the engine manifold. Previous attempts had required exhaust gases to be routed into a separate furnace for testing due to mechanical failure of the sensor from engine vibrations. A more extensive cross-sensitivity study was also undertaken this last year to examine major noise factors including fluctuations in water, oxygen, and temperature. The quantitative data were then used to develop a strategy using numerical algorithms to improve sensor accuracy. The ultimate goal is the transfer of this technology to a supplier for commercialization. Due to the recent economic downturn, suppliers are demanding more comprehensive data and increased performance analysis before committing their resources to take the technology to market. Therefore, our NO{sub x} sensor work requires a level of technology development more thorough and extensive than ever before. The objectives are: (1) Develop an inexpensive, rapid-response, high-sensitivity and selective electrochemical sensor for oxides of nitrogen (NO{sub x}) for compression-ignition, direct-injection (CIDI) exhaust gas monitoring; (2) Explore and characterize novel, effective sensing methodologies based on impedance measurements and designs and manufacturing metho

  12. Improving Healthcare for Populations: Building Smart and Integrated Remote Health Monitoring Systems

    E-Print Network [OSTI]

    Alshurafa, Nabil

    2015-01-01

    for Populations: Building Smart and Integrated Remote Healthfor Populations: Building Smart and Integrated Remote Health

  13. Gas Sensors Based on Ceramic p-n Heterocontacts

    SciTech Connect (OSTI)

    Seymen Murat Aygun

    2004-12-19

    Ceramic p-n heterocontacts based on CuO/ZnO were successfully synthesized and a systematic study of their hydrogen sensitivity was conducted. The sensitivity and response rates of CuO/ZnO sensors were studied utilizing current-voltage, current-time, and impedance spectroscopy measurements. The heterocontacts showed well-defined rectifying characteristics and were observed to detect hydrogen via both dc and ac measurements. Surface coverage data were derived from current-time measurements which were then fit to a two-site Langmuir adsorption model quite satisfactorily. The fit suggested that there should be two energetically different adsorption sites in the system. The heterocontacts were doped in an attempt to increase the sensitivity and the response rate of the sensor. First, the effects of doping the p-type (CuO) on the sensor characteristics were investigated. Doping the p-type CuO with both acceptor and isovalent dopants greatly improved the hydrogen sensitivity. The sensitivity of pure heterocontact observed via I-V measurements was increased from {approx}2.3 to {approx}9.4 with Ni doping. Dopants also enhanced the rectifying characteristics of the heterocontacts. Small amounts of Li addition were shown to decrease the reverse bias (saturation) current to 0.2 mA at a bias level of -5V. No unambiguous trends were observed between the sensitivity, the conductivity, and the density of the samples. Comparing the two phase microstructure to the single phase microstructure there was no dramatic increase in the sensitivity. Kinetic studies also confirmed the improved sensor characteristics with doping. The dopants decreased the response time of the sensor by decreasing the response time of one of the adsorption sites. The n-type ZnO was doped with both acceptor and donor dopants. Li doping resulted in the degradation of the p-n junction and the response time of the sensor. However, the current-voltage behavior of Ga-doped heterocontacts showed the best rectifying characteristics with very high forward currents. Ga doped heterocontacts showed the highest sensitivity observed during current-time measurements as well, even though the sensor response was rather slow. Finally, a possible synergistic effect of doping both p and n-sides was studied by utilizing current-time measurements for 1.5 mol% Ni-CuO/1.5 mol% Ga-ZnO heterocontact. A sensitivity value of {approx}5.1 was obtained with the fastest response among all the samples. The time needed to reach 90% coverage was lowered by a factor of 4 when compared to the pure heterocontact and the time needed to reach 70% coverage was just over one minute. Heterocontact gas sensors are promising candidates for high temperature sensor applications. Today, Si-based microelectromechanical system (MEMS) technology has shown great promise for developing novel devices such as pressure sensors, chemical sensors, and temperature sensors through complex designs. However, the harsh thermal, vibrational, and corrosive environments common to many aerospace applications impose severe limitations on their use. Sensors based on ceramic p-n heterocontacts are promising alternatives because of their inherent corrosion resistance and environmental stability. The other advantages include their inherent tuning ability to differentiate between different reducing gases and a possible cost efficient production of a wireless sensor. Being a capacitive type sensor, its output can be transformed into a passive wireless device by creating a tuned LC circuit. In this way, the sensor output (the capacitance) can be accessed remotely by measuring the resonant frequency. The relatively simple structure of heterocontacts makes it suitable for thick film fabrication techniques to make sensor packages.

  14. A Mobile Ad Hoc Bio-Sensor Network Yihan Li, Shivendra S. Panwar, Shiwen Mao, Srinivas Burugupalli, Jong ha Lee

    E-Print Network [OSTI]

    Panwar, Shivendra S.

    @photon.poly.edu, jlee25@utopia.poly.edu. Abstract-- Recent research shows that animals can be guided remotely, The system architecture and operation is introduced, and major challenges and issues are discussed. Because to sensor networks using robots. In this paper, we will first introduce the system architecture and major

  15. A Visual Sensor Network for Object Recognition: Testbed Realization A. Redondi, L. Baroffio, A. Canclini, M. Cesana, M. Tagliasacchi

    E-Print Network [OSTI]

    Tagliasacchi, Marco

    , parking lots or remote areas, where no power lines are available or the deployment of traditional sensors of the electronic design and the definition of suitable networking protocols are key elements to enable low to the development of several image and video coding architectures. The main objective is to maximize the quality

  16. Distributed Sensor Coordination for Advanced Energy Systems

    SciTech Connect (OSTI)

    Tumer, Kagan

    2013-07-31

    The ability to collect key system level information is critical to the safe, efficient and reli- able operation of advanced energy systems. With recent advances in sensor development, it is now possible to push some level of decision making directly to computationally sophisticated sensors, rather than wait for data to arrive to a massive centralized location before a decision is made. This type of approach relies on networked sensors (called “agents” from here on) to actively collect and process data, and provide key control deci- sions to significantly improve both the quality/relevance of the collected data and the as- sociating decision making. The technological bottlenecks for such sensor networks stem from a lack of mathematics and algorithms to manage the systems, rather than difficulties associated with building and deploying them. Indeed, traditional sensor coordination strategies do not provide adequate solutions for this problem. Passive data collection methods (e.g., large sensor webs) can scale to large systems, but are generally not suited to highly dynamic environments, such as ad- vanced energy systems, where crucial decisions may need to be reached quickly and lo- cally. Approaches based on local decisions on the other hand cannot guarantee that each agent performing its task (maximize an agent objective) will lead to good network wide solution (maximize a network objective) without invoking cumbersome coordination rou- tines. There is currently a lack of algorithms that will enable self-organization and blend the efficiency of local decision making with the system level guarantees of global decision making, particularly when the systems operate in dynamic and stochastic environments. In this work we addressed this critical gap and provided a comprehensive solution to the problem of sensor coordination to ensure the safe, reliable, and robust operation of advanced energy systems. The differentiating aspect of the proposed work is in shift- ing the focus towards “what to observe” rather than “how to observe” in large sensor networks, allowing the agents to actively determine both the structure of the network and the relevance of the information they are seeking to collect. In addition to providing an implicit coordination mechanism, this approach allows the system to be reconfigured in response to changing needs (e.g., sudden external events requiring new responses) or changing sensor network characteristics (e.g., sudden changes to plant condition). Outcome Summary: All milestones associated with this project have been completed. In particular, private sensor objective functions were developed which are aligned with the global objective function, sensor effectiveness has been improved by using “sensor teams,” system efficiency has been improved by 30% using difference evaluation func- tions, we have demonstrated system reconfigurability for 20% changes in system con- ditions, we have demonstrated extreme scalability of our proposed algorithm, we have demonstrated that sensor networks can overcome disruptions of up to 20% in network conditions, and have demonstrated system reconfigurability to 20% changes in system conditions in hardware-based simulations. This final report summarizes how each of these milestones was achieved, and gives insight into future research possibilities past the work which has been completed. The following publications support these milestones [6, 8, 9, 10, 16, 18, 19].

  17. Sandia Energy - Rotor Blade Sensors and Instrumentation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Blade Sensors and Instrumentation Home Stationary Power Energy Conversion Efficiency Wind Energy Rotor Innovation Rotor Blade Sensors and Instrumentation Rotor Blade Sensors and...

  18. MEMS Aluminum Nitride Technology for Inertial Sensors

    E-Print Network [OSTI]

    Vigevani, Gabriele

    2011-01-01

    1, the growth of angular rate MEMS sensor is a growingdominant market in MEMS inertial sensors - with millions ofsector of the MEMS inertial sensor market. Being able to

  19. Amplification of Xenon NMR and MRI by remote detection

    SciTech Connect (OSTI)

    Moule, Adam J.; Spence, Megan M.; Han, Song-I.; Seeley, JulietteA.; Pierce, Kimberly L.; Saxena, Sunil; Pines, Alexander

    2003-03-31

    A novel technique is proposed in which a nuclear magneticresonance (NMR) spectrum or magnetic resonance image (MRI) is encoded andstored as spin polarization and is then moved to a different physicallocation to be detected. Remote detection allows the separateoptimization of the encoding and detection steps, permitting theindependent choice of experimental conditions, and excitation anddetection methodologies. In the first experimental demonstration of thistechnique, we show that NMR signal can be amplified by taking diluted129Xe from a porous sample placed inside a large encoding coil, andconcentrating it into a smaller detection coil. In general, the study ofNMR active molecules at low concentration that have low physical fillingfactor is facilitated by remote detection. In the second experiment, MRIinformation encoded in a very low field magnet (4-7mT) is transferred toa high field magnet (4.2 T) in order to be detected under optimizedconditions. Furthermore, remote detection allows the utilization ofultra-sensitive optical or superconducting detection techniques, whichbroadens the horizon of NMR experimentation.

  20. Preliminary Safety Design Report for Remote Handled Low-Level Waste Disposal Facility

    SciTech Connect (OSTI)

    Timothy Solack; Carol Mason

    2012-03-01

    A new onsite, remote-handled low-level waste disposal facility has been identified as the highest ranked alternative for providing continued, uninterrupted remote-handled low-level waste disposal for remote-handled low-level waste from the Idaho National Laboratory and for nuclear fuel processing activities at the Naval Reactors Facility. Historically, this type of waste has been disposed of at the Radioactive Waste Management Complex. Disposal of remote-handled low-level waste in concrete disposal vaults at the Radioactive Waste Management Complex will continue until the facility is full or until it must be closed in preparation for final remediation of the Subsurface Disposal Area (approximately at the end of Fiscal Year 2017). This preliminary safety design report supports the design of a proposed onsite remote-handled low-level waste disposal facility by providing an initial nuclear facility hazard categorization, by discussing site characteristics that impact accident analysis, by providing the facility and process information necessary to support the hazard analysis, by identifying and evaluating potential hazards for processes associated with onsite handling and disposal of remote-handled low-level waste, and by discussing the need for safety features that will become part of the facility design.

  1. Conceptual Safety Design Report for the Remote Handled Low-Level Waste Disposal Facility

    SciTech Connect (OSTI)

    Boyd D. Christensen

    2010-02-01

    A new onsite, remote-handled LLW disposal facility has been identified as the highest ranked alternative for providing continued, uninterrupted remote-handled LLW disposal for remote-handled LLW from the Idaho National Laboratory and for spent nuclear fuel processing activities at the Naval Reactors Facility. Historically, this type of waste has been disposed of at the Radioactive Waste Management Complex. Disposal of remote-handled LLW in concrete disposal vaults at the Radioactive Waste Management Complex will continue until the facility is full or until it must be closed in preparation for final remediation of the Subsurface Disposal Area (approximately at the end of Fiscal Year 2017). This conceptual safety design report supports the design of a proposed onsite remote-handled LLW disposal facility by providing an initial nuclear facility hazard categorization, by identifying potential hazards for processes associated with onsite handling and disposal of remote-handled LLW, by evaluating consequences of postulated accidents, and by discussing the need for safety features that will become part of the facility design.

  2. Conceptual Safety Design Report for the Remote Handled Low-Level Waste Disposal Facility

    SciTech Connect (OSTI)

    Boyd D. Christensen

    2010-05-01

    A new onsite, remote-handled LLW disposal facility has been identified as the highest ranked alternative for providing continued, uninterrupted remote-handled LLW disposal for remote-handled LLW from the Idaho National Laboratory and for spent nuclear fuel processing activities at the Naval Reactors Facility. Historically, this type of waste has been disposed of at the Radioactive Waste Management Complex. Disposal of remote-handled LLW in concrete disposal vaults at the Radioactive Waste Management Complex will continue until the facility is full or until it must be closed in preparation for final remediation of the Subsurface Disposal Area (approximately at the end of Fiscal Year 2017). This conceptual safety design report supports the design of a proposed onsite remote-handled LLW disposal facility by providing an initial nuclear facility hazard categorization, by identifying potential hazards for processes associated with onsite handling and disposal of remote-handled LLW, by evaluating consequences of postulated accidents, and by discussing the need for safety features that will become part of the facility design.

  3. Remotely operated submersible underwater suction apparatus

    DOE Patents [OSTI]

    Kristan, Louis L. (2111 Brentwood Dr., Idaho Falls, ID 83402)

    1990-01-01

    A completely submersible, remotely operated underwater suction device for collection of irradiated materials in a nuclear pool is disclosed. The device includes a pump means for pumping water through the device, a filter means for capturing irradiated debris, remotely operated releasable connector means, a collection means and a means for remotely maneuvering the collection means. The components of the suction device may be changed and replaced underwater to take advantage of the excellent radiation shielding ability of water to thereby minimize exposure of personnel to radiation.

  4. Heating remote rooms in passive solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1981-01-01

    Remote rooms can be effectively heated by convection through a connecting doorway. A simple steady-state equation is developed for design purposes. Validation of a dynamic model is achieved using data obtained over a 13-day period. Dynamic effects are investigated using a simulation analysis for three different cases of driving temperature; the effect is to reduce the temperature difference between the driving room and the remote room compared to the steady-state model. For large temperature swings in the driving room a strategy which uses the intervening door in a diode mode is effective. The importance of heat-storing mass in the remote room is investigated.

  5. Remote/New sites: Many Field

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners *ReindustrializationEnergy Remote AlaskanJ.E.M.RemoteRemote/New

  6. State machine analysis of sensor data from dynamic processes

    DOE Patents [OSTI]

    Cook, William R.; Brabson, John M.; Deland, Sharon M.

    2003-12-23

    A state machine model analyzes sensor data from dynamic processes at a facility to identify the actual processes that were performed at the facility during a period of interest for the purpose of remote facility inspection. An inspector can further input the expected operations into the state machine model and compare the expected, or declared, processes to the actual processes to identify undeclared processes at the facility. The state machine analysis enables the generation of knowledge about the state of the facility at all levels, from location of physical objects to complex operational concepts. Therefore, the state machine method and apparatus may benefit any agency or business with sensored facilities that stores or manipulates expensive, dangerous, or controlled materials or information.

  7. Category:Active Sensors | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village,8199089°, -86.3376761°AnadromousASHRAE Climate

  8. Sensor Characteristics Reference Guide

    SciTech Connect (OSTI)

    Cree, Johnathan V.; Dansu, A.; Fuhr, P.; Lanzisera, Steven M.; McIntyre, T.; Muehleisen, Ralph T.; Starke, M.; Banerjee, Pranab; Kuruganti, T.; Castello, C.

    2013-04-01

    The Buildings Technologies Office (BTO), within the U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE), is initiating a new program in Sensor and Controls. The vision of this program is: • Buildings operating automatically and continuously at peak energy efficiency over their lifetimes and interoperating effectively with the electric power grid. • Buildings that are self-configuring, self-commissioning, self-learning, self-diagnosing, self-healing, and self-transacting to enable continuous peak performance. • Lower overall building operating costs and higher asset valuation. The overarching goal is to capture 30% energy savings by enhanced management of energy consuming assets and systems through development of cost-effective sensors and controls. One step in achieving this vision is the publication of this Sensor Characteristics Reference Guide. The purpose of the guide is to inform building owners and operators of the current status, capabilities, and limitations of sensor technologies. It is hoped that this guide will aid in the design and procurement process and result in successful implementation of building sensor and control systems. DOE will also use this guide to identify research priorities, develop future specifications for potential market adoption, and provide market clarity through unbiased information

  9. Energy-Quality Tradeoffs for Target Tracking in Wireless Sensor Networks

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    Energy-Quality Tradeoffs for Target Tracking in Wireless Sensor Networks Sundeep Pattem1 , Sameera-of-magnitude energy savings with negligible difference in tracking quality. We then consider duty-cycled activation. In these sensor activation strategies, energy savings come at the expense of a reduction in the quality

  10. Authors Queries Journal: International Journal of Remote Sensing

    E-Print Network [OSTI]

    Texas at San Antonio, University of

    and Environmental Science, New Mexico Tech, Socorro, NM 87801, USA §Laboratory for Remote Sensing and Geoinformatics

  11. On-road remote sensing of vehicle emissions in

    E-Print Network [OSTI]

    Denver, University of

    On-road remote sensing of vehicle emissions in the Auckland Region August 2003 Technical 1877353000 www.arc.govt.nz #12;TP 198 On-Road Remote Sensing of Vehicle Emissions in the Auckland Region #12;Page i TP 198 On-Road Remote Sensing of Vehicle Emissions in the Auckland Region On-road remote sensing

  12. U-176: Wireshark Multiple Bugs Let Remote Users Deny Service

    Broader source: Energy.gov [DOE]

    Several vulnerabilities were reported in Wireshark. A remote user can cause denial of service conditions.

  13. OVERVIEW OF REMOTE SENSING (David Sandwell, Copyright, 2007)

    E-Print Network [OSTI]

    Sandwell, David T.

    1 OVERVIEW OF REMOTE SENSING (David Sandwell, Copyright, 2007) Definition Remote sensing: · satellite (or aircraft) remote sensing of the Earth (mostly); · information carried by electromagnetic waves detailed discussion of applications of remote sensing. Instead the focus is on the physical principles

  14. Fiber optic vibration sensor

    DOE Patents [OSTI]

    Dooley, Joseph B. (Harriman, TN); Muhs, Jeffrey D. (Lenoir City, TN); Tobin, Kenneth W. (Harriman, TN)

    1995-01-01

    A fiber optic vibration sensor utilizes two single mode optical fibers supported by a housing with one optical fiber fixedly secured to the housing and providing a reference signal and the other optical fiber having a free span length subject to vibrational displacement thereof with respect to the housing and the first optical fiber for providing a signal indicative of a measurement of any perturbation of the sensor. Damping or tailoring of the sensor to be responsive to selected levels of perturbation is provided by altering the diameter of optical fibers or by immersing at least a portion of the free span length of the vibration sensing optical fiber into a liquid of a selected viscosity.

  15. Fiber optic vibration sensor

    DOE Patents [OSTI]

    Dooley, J.B.; Muhs, J.D.; Tobin, K.W.

    1995-01-10

    A fiber optic vibration sensor utilizes two single mode optical fibers supported by a housing with one optical fiber fixedly secured to the housing and providing a reference signal and the other optical fiber having a free span length subject to vibrational displacement thereof with respect to the housing and the first optical fiber for providing a signal indicative of a measurement of any perturbation of the sensor. Damping or tailoring of the sensor to be responsive to selected levels of perturbation is provided by altering the diameter of optical fibers or by immersing at least a portion of the free span length of the vibration sensing optical fiber into a liquid of a selected viscosity. 2 figures.

  16. Chemiresistor urea sensor

    DOE Patents [OSTI]

    Glass, Robert S. (Livermore, CA)

    1997-01-01

    A sensor to detect and quantify urea in fluids resulting from hemodialysis procedures, and in blood and other body fluids. The sensor is based upon a chemiresistor, which consists of an interdigitated array of metal fingers between which a resistance measured. The interdigitated array is fabricated on a suitable substrate. The surface of the array of fingers is covered with a coating containing the enzyme urease which catalyzes the hydrolysis of urea to form the ammonium ion, the bicarbonate ion, and hydroxide-chemical products which provide the basis for the measured signal. In a typical application, the sensor could be used at bedside, in conjunction with an appropriate electronics/computer system, in order to determine the hemodialysis endpoint. Also, the chemiresistor used to detect urea, can be utilized with a reference chemiresistor which does not contain urease, and connected in a differential measurement arrangement, such that the reference chemiresistor would cancel out any fluctuations due to background effects.

  17. Capacitive proximity sensor

    DOE Patents [OSTI]

    Kronberg, J.W.

    1994-05-31

    A proximity sensor based on a closed field circuit is disclosed. The circuit comprises a ring oscillator using a symmetrical array of plates that creates an oscillating displacement current. The displacement current varies as a function of the proximity of objects to the plate array. Preferably the plates are in the form of a group of three pair of symmetric plates having a common center, arranged in a hexagonal pattern with opposing plates linked as a pair. The sensor produces logic level pulses suitable for interfacing with a computer or process controller. The proximity sensor can be incorporated into a load cell, a differential pressure gauge, or a device for measuring the consistency of a characteristic of a material where a variation in the consistency causes the dielectric constant of the material to change. 14 figs.

  18. Wireless sensor networks for measuring traffic

    E-Print Network [OSTI]

    Varaiya, Pravin

    Wireless sensor networks for measuring traffic University of California, Berkeley Sing Yiu Cheung, Sinem Coleri, and Pravin Varaiya 2 Outline · Traffic measurement · Wireless Sensor Networks · Vehicle wireless sensor networks compete? 7 Outline · Traffic measurement · Wireless Sensor Networks · Vehicle

  19. Wireless Sensor Networks: Monitoring and Control

    SciTech Connect (OSTI)

    Hastbacka, Mildred; Ponoum, Ratcharit; Bouza, Antonio

    2013-05-31

    The article discusses wireless sensor technologies for building energy monitoring and control. This article, also, addresses wireless sensor networks as well as benefits and challenges of using wireless sensors. The energy savings and market potential of wireless sensors are reviewed.

  20. Piezo-sensor self-diagnostics using electrical impedance measurements.

    SciTech Connect (OSTI)

    Park, G. H. (Gyu Hae); Farrar, C. R. (Charles R.); Rutherford, A. C. (Amanda C.); Robertson, A. N. (Amy N.)

    2004-01-01

    This paper present the piezoelectric sensor self-diagnostic procedure that performs in-situ monitoring of the operational status of piezoelectric materials (PZT) used for sensors and actuators in structural health monitoring (SHM) applications. The use of active-sensing piezoelectric materials has received considerable attention in the SHM community. A critical aspect of the piezoelectric active-sensing technologies is that usually large numbers of distributed sensors and actuators are needed to perform the required monitoring process. The sensor/actuator self-diagnostic procedure, where the sensors/actuators are confirmed to be functioning properly during operation, is therefore a critical component to successfully complete the SHM process and to minimize the false indication regarding the structural health. The basis of this procedure is to track the changes in the capacitive value of piezoelectric materials resulting from the sensor failure, which is manifested in the imaginary part of the measured electrical admittances. Furthermore, through the analytical and experimental investigation, it is confirmed that the bonding layer between the PZT and a host structure significantly contributes to the measured capacitive values. Therefore, by monitoring the imaginary part of the admittances, one can quantitatively assess the degradation of the mechanical/electrical properties of the PZT and its attachment to a host structure. This paper concludes with an experimental example to demonstrate the feasibility of the proposed sensor-diagnostic procedure.

  1. Surface reflectance retrieval from satellite and aircraft sensors: Results of sensor and algorithm comparisons during FIFE

    SciTech Connect (OSTI)

    Markham, B.L. ); Halthore, R.N.; Goetz, S.J. )

    1992-11-30

    This work is part of the First International Satellite Land Surface Climatology Project (ISLSCP) Field Experiment (FIFE), an international land-surface-atmosphere experiment aimed at improving the way climate models represent energy, water, heat, and carbon exchanges, and improving the utilization of satellite based remote sensing to monitor such parameters. This paper reports on comparison of measurement systems which were deployed to measure surface reflectance factors, from aircraft or satellites. These instruments look over the general range of 0.4 to 2.5[mu]m. Instruments studied include Landsat 5 thematic mapper (TM), the SPOT 1 high-resolution visible sensor (HRV) 1, the NS001 thematic mapper simulator, and the modular multispectral radiometers (MMRs). The study looked at the radiometric consistency of the different instruments, and the adequacy of the atmospheric correction routines applied to data analysis.

  2. A Wireless Sensor Network Air Pollution Monitoring System

    E-Print Network [OSTI]

    Khedo, Kavi K; Mungur, Avinash; Mauritius, University of; Mauritius,; 10.5121/ijwmn.2010.2203

    2010-01-01

    Sensor networks are currently an active research area mainly due to the potential of their applications. In this paper we investigate the use of Wireless Sensor Networks (WSN) for air pollution monitoring in Mauritius. With the fast growing industrial activities on the island, the problem of air pollution is becoming a major concern for the health of the population. We proposed an innovative system named Wireless Sensor Network Air Pollution Monitoring System (WAPMS) to monitor air pollution in Mauritius through the use of wireless sensors deployed in huge numbers around the island. The proposed system makes use of an Air Quality Index (AQI) which is presently not available in Mauritius. In order to improve the efficiency of WAPMS, we have designed and implemented a new data aggregation algorithm named Recursive Converging Quartiles (RCQ). The algorithm is used to merge data to eliminate duplicates, filter out invalid readings and summarise them into a simpler form which significantly reduce the amount of dat...

  3. Integrated Mirco-Machined Hydrogen Gas Sensors

    SciTech Connect (OSTI)

    Frank DiMeoJr. Ing--shin Chen

    2005-12-15

    The widespread use of hydrogen as both an industrial process gas and an energy storage medium requires fast, selective detection of hydrogen gas. This report discusses the development of a new type of solid-state hydrogen gas sensor that couples novel metal hydride thin films with a MEMS (Micro-Electro-Mechanical System) structure known as a micro-hotplate. In this project, Micro-hotplate structures were overcoated with engineered multilayers that serve as the active hydrogen-sensing layer. The change in electrical resistance of these layers when exposed to hydrogen gas was the measured sensor output. This project focused on achieving the following objectives: (1) Demonstrating the capabilities of micro-machined H2 sensors; (2) Developing an understanding of their performance; (3) Critically evaluating the utility and viability of this technology for life safety and process monitoring applications. In order to efficiently achieve these objectives, the following four tasks were identified: (1) Sensor Design and Fabrication; (2) Short Term Response Testing; (3) Long Term Behavior Investigation; (4) Systems Development. Key findings in the project include: The demonstration of sub-second response times to hydrogen; measured sensitivity to hydrogen concentrations below 200 ppm; a dramatic improvement in the sensor fabrication process and increased understanding of the processing properties and performance relationships of the devices; the development of improved sensing multilayers; and the discovery of a novel strain based hydrogen detection mechanism. The results of this program suggest that this hydrogen sensor technology has exceptional potential to meet the stringent demands of life safety applications as hydrogen utilization and infrastructure becomes more prevalent.

  4. Fluorescent temperature sensor

    DOE Patents [OSTI]

    Baker, Gary A [Los Alamos, NM; Baker, Sheila N [Los Alamos, NM; McCleskey, T Mark [Los Alamos, NM

    2009-03-03

    The present invention is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.

  5. Thin film hydrogen sensor

    DOE Patents [OSTI]

    Lauf, Robert J. (Oak Ridge, TN); Hoffheins, Barbara S. (Knoxville, TN); Fleming, Pamela H. (Oak Ridge, TN)

    1994-01-01

    A hydrogen sensor element comprises an essentially inert, electrically-insulating substrate having a thin-film metallization deposited thereon which forms at least two resistors on the substrate. The metallization comprises a layer of Pd or a Pd alloy for sensing hydrogen and an underlying intermediate metal layer for providing enhanced adhesion of the metallization to the substrate. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors, and at least one of the resistors is left uncovered. The difference in electrical resistances of the covered resistor and the uncovered resistor is related to hydrogen concentration in a gas to which the sensor element is exposed.

  6. Solid state oxygen sensor

    DOE Patents [OSTI]

    Garzon, F.H.; Brosha, E.L.

    1997-12-09

    A potentiometric oxygen sensor is formed having a logarithmic response to a differential oxygen concentration while operating as a Nernstian-type sensor. Very thin films of mixed conducting oxide materials form electrode services while permitting diffusional oxygen access to the interface between the zirconia electrolyte and the electrode. Diffusion of oxygen through the mixed oxide is not rate-limiting. Metal electrodes are not used so that morphological changes in the electrode structure do not occur during extended operation at elevated temperatures. 6 figs.

  7. Sandia National Laboratories: Sensors

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-ThroughputUpcoming Release of thePrograms:ModeRobotics:Robotics:Sensors Sensors

  8. ON-ROAD EVALUATION OF A REMOTE SENSOR: All on-road remote sensors or which we are aware carry out at least a measurement of the

    E-Print Network [OSTI]

    Denver, University of

    to what would be measured were one to directly probe a tailpipe. The units however do not matter at least a measurement of the CO/CO2 ratio in the exhaust of a passing vehicle. It is possible for an interested party to carry out a quantitative evaluation of the precision of this measurement. This evaluation

  9. Tactile sensing using elastomeric sensors

    E-Print Network [OSTI]

    Jia, Xiaodan (Xiaodan Stella)

    2012-01-01

    GelSight, namely, elastomeric sensor, is a novel tactile sensor to get the 3D information of contacting surfaces. Using GelSight, some tactile properties, such as softness and roughness, could be gained through image ...

  10. int. j. remote sensing, 2000, vol. 21, no. 18, 35333538 Close-range remote sensing of aquatic macrophyte vegetation cover

    E-Print Network [OSTI]

    Debinski, Diane M.

    int. j. remote sensing, 2000, vol. 21, no. 18, 3533­3538 Close-range remote sensing of aquatic Applied Remote Sensing (KARS) Program, 2291 Irving Hill Road, University of Kansas, Lawrence, Kansas 66045 location of sampling plots. While aerial photography and satellite remotely sensed imagery have been used

  11. Fiber optically isolated and remotely stabilized data transmission system

    DOE Patents [OSTI]

    Nelson, Melvin A. (Santa Barbara, CA)

    1992-01-01

    A fiber optically isolated and remotely stabilized data transmission system s described wherein optical data may be transmitted over an optical data fiber from a remote source which includes a data transmitter and a power supply at the remote source. The transmitter may be remotely calibrated and stabilized via an optical control fiber, and the power source may be remotely cycled between duty and standby modes via an optical control fiber.

  12. Fiber optically isolated and remotely stabilized data transmission system

    DOE Patents [OSTI]

    Nelson, M.A.

    1992-11-10

    A fiber optically isolated and remotely stabilized data transmission systems described wherein optical data may be transmitted over an optical data fiber from a remote source which includes a data transmitter and a power supply at the remote source. The transmitter may be remotely calibrated and stabilized via an optical control fiber, and the power source may be remotely cycled between duty and standby modes via an optical control fiber. 3 figs.

  13. Shape memory alloy thaw sensors

    DOE Patents [OSTI]

    Shahinpoor, Mohsen (Albuquerque, NM); Martinez, David R. (Albuquerque, NM)

    1998-01-01

    A sensor permanently indicates that it has been exposed to temperatures exceeding a critical temperature for a predetermined time period. An element of the sensor made from shape memory alloy changes shape when exposed, even temporarily, to temperatures above the Austenitic temperature of the shape memory alloy. The shape change of the SMA element causes the sensor to change between two readily distinguishable states.

  14. Relationships between daytime carbon dioxide uptake and absorbed photosynthetically active radiation for three different mountain/plains

    E-Print Network [OSTI]

    Hunt Jr., E. Raymond

    Relationships between daytime carbon dioxide uptake and absorbed photosynthetically active and Atmospheric Dynamics: Boundary layer processes; KEYWORDS: CO2 flux, absorbed PAR, carbon cycle, remote sensing Change: Biogeochemical processes (4805); 1640 Global Change: Remote sensing; 3307 Meteorology

  15. PaperSketch: A Paper-Digital Collaborative Remote Sketching Tool

    E-Print Network [OSTI]

    Reiterer, Harald

    PaperSketch: A Paper-Digital Collaborative Remote Sketching Tool Nadir Weibel1 weibel@ucsd.edu Beat by bridging the paper- digital divide and allowing users to sketch on paper simul- taneously while capturing the actions digitally. We present an analysis of collaborative sketching activities in working environments

  16. Octant 1 boom extension The JET remote handling system has been used

    E-Print Network [OSTI]

    to maintain and modify components inside the torus. The efficiency of in-vessel remote handling activities, manufacturing testing and witnessing processes to established standards Using the Octant 5 boom design of the internal control that provided accurate deployment of the boom via high resolution actuators as well

  17. Remote-site power generation opportunities for Alaska

    SciTech Connect (OSTI)

    Jones, M.L.

    1997-03-01

    The Energy and Environmental Research Center (EERC) has been working with the Federal Energy Technology Center in Morgantown, West Virginia, to assess options for small, low-cost, environmental acceptable power generation for application in remote areas of Alaska. The goal of this activity was to reduce the use of fuel in Alaskan villages by developing small, low-cost power generation applications. Because of the abundance of high-quality coal throughout Alaska, emphasis was placed on clean coal applications, but other energy sources, including geothermal, wind, hydro, and coalbed methane, were also considered. The use of indigenous energy sources would provide cheaper cleaner power, reduce the need for PCE (Power Cost Equalization program) subsidies, increase self-sufficiency, and retain hard currency in the state while at the same time creating jobs in the region. The introduction of economical, small power generation systems into Alaska by US equipment suppliers and technology developers aided by the EERC would create the opportunities for these companies to learn how to engineer, package, transport, finance, and operate small systems in remote locations. All of this experience would put the US developers and equipment supply companies in an excellent position to export similar types of small power systems to rural areas or developing countries. Thus activities in this task that relate to determining the generic suitability of these technologies for other countries can increase US competitiveness and help US companies sell these technologies in foreign countries, increasing the number of US jobs. The bulk of this report is contained in the two appendices: Small alternative power workshop, topical report and Global market assessment of coalbed methane, fluidized-bed combustion, and coal-fired diesel technologies in remote applications.

  18. Lean blowoff detection sensor

    DOE Patents [OSTI]

    Thornton, Jimmy (Morgantown, WV); Straub, Douglas L. (Morgantown, WV); Chorpening, Benjamin T. (Morgantown, WV); Huckaby, David (Morgantown, WV)

    2007-04-03

    Apparatus and method for detecting incipient lean blowoff conditions in a lean premixed combustion nozzle of a gas turbine. A sensor near the flame detects the concentration of hydrocarbon ions and/or electrons produced by combustion and the concentration monitored as a function of time are used to indicate incipient lean blowoff conditions.

  19. Polyimide Capacitive Humidity Sensors 

    E-Print Network [OSTI]

    Lofgren, H.; Mills, F.

    1988-01-01

    because the film takes on SddFticardL water arrd swells beyond its nannal mmp. 'Ihen, the dawn me has gmater -is than mnnal, altlwkqh the sensor recwers its initial values after a short tine at 1- hrnaidity levels. The mqcmse me is eharn in Fig. 5...

  20. Carbon dioxide sensor

    DOE Patents [OSTI]

    Dutta, Prabir K. (Worthington, OH); Lee, Inhee (Columbus, OH); Akbar, Sheikh A. (Hilliard, OH)

    2011-11-15

    The present invention generally relates to carbon dioxide (CO.sub.2) sensors. In one embodiment, the present invention relates to a carbon dioxide (CO.sub.2) sensor that incorporates lithium phosphate (Li.sub.3PO.sub.4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li.sub.2CO.sub.3) and barium carbonate (BaCO.sub.3). In another embodiment, the present invention relates to a carbon dioxide (CO.sub.2) sensor has a reduced sensitivity to humidity due to a sensing electrode with a layered structure of lithium carbonate and barium carbonate. In still another embodiment, the present invention relates to a method of producing carbon dioxide (CO.sub.2) sensors having lithium phosphate (Li.sub.3PO.sub.4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li.sub.2CO.sub.3) and barium carbonate (BaCO.sub.3).

  1. Precision liquid level sensor

    DOE Patents [OSTI]

    Field, Michael E. (Albuquerque, NM); Sullivan, William H. (Albuquerque, NM)

    1985-01-01

    A precision liquid level sensor utilizes a balanced R. F. bridge, each arm including an air dielectric line. Changes in liquid level along one air dielectric line imbalance the bridge and create a voltage which is directly measurable across the bridge.

  2. Precision liquid level sensor

    DOE Patents [OSTI]

    Field, M.E.; Sullivan, W.H.

    1985-01-29

    A precision liquid level sensor utilizes a balanced R. F. bridge, each arm including an air dielectric line. Changes in liquid level along one air dielectric line imbalance the bridge and create a voltage which is directly measurable across the bridge. 2 figs.

  3. Thick film hydrogen sensor

    DOE Patents [OSTI]

    Hoffheins, B.S.; Lauf, R.J.

    1995-09-19

    A thick film hydrogen sensor element includes an essentially inert, electrically-insulating substrate having deposited thereon a thick film metallization forming at least two resistors. The metallization is a sintered composition of Pd and a sinterable binder such as glass frit. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors. 8 figs.

  4. Thick film hydrogen sensor

    DOE Patents [OSTI]

    Hoffheins, Barbara S. (Knoxville, TN); Lauf, Robert J. (Oak Ridge, TN)

    1995-01-01

    A thick film hydrogen sensor element includes an essentially inert, electrically-insulating substrate having deposited thereon a thick film metallization forming at least two resistors. The metallization is a sintered composition of Pd and a sinterable binder such as glass frit. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors.

  5. Composite sensor membrane

    DOE Patents [OSTI]

    Majumdar, Arun (Orinda, CA); Satyanarayana, Srinath (Berkeley, CA); Yue, Min (Albany, CA)

    2008-03-18

    A sensor may include a membrane to deflect in response to a change in surface stress, where a layer on the membrane is to couple one or more probe molecules with the membrane. The membrane may deflect when a target molecule reacts with one or more probe molecules.

  6. Miniaturized wireless sensor network

    E-Print Network [OSTI]

    Lecointre, Aubin; Dubuc, David; Katia, Grenier; Patrick, Pons; Aubert, Hervé; Muller, A; Berthou, Pascal; Gayraud, Thierry; Plana, Robert

    2010-01-01

    This paper addresses an overview of the wireless sensor networks. It is shown that MEMS/NEMS technologies and SIP concept are well suited for advanced architectures. It is also shown analog architectures have to be compatible with digital signal techniques to develop smart network of microsystem.

  7. IN-LINE CHEMICAL SENSOR DEPLOYMENT IN A TRITIUM PLANT

    SciTech Connect (OSTI)

    Tovo, L.; Wright, J.; Torres, R.; Peters, B.

    2013-10-02

    The Savannah River Tritium Plant (TP) relies on well understood but aging sensor technology for process gas analysis. Though new sensor technologies have been brought to various readiness levels, the TP has been reluctant to install technologies that have not been tested in tritium service. This gap between sensor technology development and incorporating new technologies into practical applications demonstrates fundamental challenges that exist when transitioning from status quo to state-of-the-art in an extreme environment such as a tritium plant. These challenges stem from three root obstacles: 1) The need for a comprehensive assessment of process sensing needs and requirements; 2) The lack of a pick-list of process-compatible sensor technologies; and 3) The need to test technologies in a tritium-contaminated process environment without risking production. At Savannah River, these issues are being addressed in a two phase project. In the first phase, TP sensing requirements were determined by a team of process experts. Meanwhile, Savannah River National Laboratory sensor experts identified candidate technologies and related them to the TP processing requirements. The resulting roadmap links the candidate technologies to actual plant needs. To provide accurate assessments of how a candidate sensor technology would perform in a contaminated process environment, an instrument demonstration station was established within a TP glove box. This station was fabricated to TP process requirements and designed to handle high activity samples. The combination of roadmap and demonstration station provides the following assets: ? Creates a partnership between the process engineers and researchers for sensor selection, maturation, and insertion, ? Selects the right sensors for process conditions ? Provides a means for safely inserting new sensor technology into the process without risking production, and ? Provides a means to evaluate off normal occurrences where and when they occur. This paper discusses the process to identify and demonstrate new sensor technologies for the Savannah River TP.

  8. Hierarchical Nanoceramics for Industrial Process Sensors

    SciTech Connect (OSTI)

    Ruud, James, A.; Brosnan, Kristen, H.; Striker, Todd; Ramaswamy, Vidya; Aceto, Steven, C.; Gao, Yan; Willson, Patrick, D.; Manoharan, Mohan; Armstrong, Eric, N., Wachsman, Eric, D.; Kao, Chi-Chang

    2011-07-15

    This project developed a robust, tunable, hierarchical nanoceramics materials platform for industrial process sensors in harsh-environments. Control of material structure at multiple length scales from nano to macro increased the sensing response of the materials to combustion gases. These materials operated at relatively high temperatures, enabling detection close to the source of combustion. It is anticipated that these materials can form the basis for a new class of sensors enabling widespread use of efficient combustion processes with closed loop feedback control in the energy-intensive industries. The first phase of the project focused on materials selection and process development, leading to hierarchical nanoceramics that were evaluated for sensing performance. The second phase focused on optimizing the materials processes and microstructures, followed by validation of performance of a prototype sensor in a laboratory combustion environment. The objectives of this project were achieved by: (1) synthesizing and optimizing hierarchical nanostructures; (2) synthesizing and optimizing sensing nanomaterials; (3) integrating sensing functionality into hierarchical nanostructures; (4) demonstrating material performance in a sensing element; and (5) validating material performance in a simulated service environment. The project developed hierarchical nanoceramic electrodes for mixed potential zirconia gas sensors with increased surface area and demonstrated tailored electrocatalytic activity operable at high temperatures enabling detection of products of combustion such as NOx close to the source of combustion. Methods were developed for synthesis of hierarchical nanostructures with high, stable surface area, integrated catalytic functionality within the structures for gas sensing, and demonstrated materials performance in harsh lab and combustion gas environments.

  9. REMOTE LABORATORIES IN AUTOMATION: AIP-PRIMECA RAO ARI PLATFORM Remote Laboratories in Automation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for thorough trainings in industrial We thank our sponsors : Schneider Electric which provided the automationREMOTE LABORATORIES IN AUTOMATION: AIP-PRIMECA RAO ARI PLATFORM Remote Laboratories in Automation of resources and competencies about industrial topics for many universities in Rhône-Alpes french Region. Due

  10. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 1 Remote Sensing of Weather Hazards Using

    E-Print Network [OSTI]

    Cruz-Pol, Sandra L.

    -Cost and Minimal Infrastructure Off-the-Grid Weather Radar Network Jorge M. Trabal, Student Member, IEEE, José GIEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 1 Remote Sensing of Weather Hazards Using a Low, IEEE, and David J. McLaughlin, Senior Member, IEEE Abstract--Operational weather radars in the U

  11. Remote Food Shopping Robot System in a Supermarket Realization of the shopping task from remote places

    E-Print Network [OSTI]

    Ohya, Akihisa

    Remote Food Shopping Robot System in a Supermarket ­Realization of the shopping task from remote and usage in human daily life. The specific task we set up in this research is to help people buy fresh food range finder, and the communication interface. With this system, the selection of the food item

  12. Emissive sensors and devices incorporating these sensors

    SciTech Connect (OSTI)

    Swager, Timothy M; Zhang, Shi-Wei

    2013-02-05

    The present invention generally relates to luminescent and/or optically absorbing compositions and/or precursors to those compositions, including solid films incorporating these compositions/precursors, exhibiting increased luminescent lifetimes, quantum yields, enhanced stabilities and/or amplified emissions. The present invention also relates to sensors and methods for sensing analytes through luminescent and/or optically absorbing properties of these compositions and/or precursors. Examples of analytes detectable by the invention include electrophiles, alkylating agents, thionyl halides, and phosphate ester groups including phosphoryl halides, cyanides and thioates such as those found in certain chemical warfare agents. The present invention additionally relates to devices and methods for amplifying emissions, such as those produced using the above-described compositions and/or precursors, by incorporating the composition and/or precursor within a polymer having an energy migration pathway. In some cases, the compositions and/or precursors thereof include a compound capable of undergoing a cyclization reaction.

  13. CMOS Integrated Carbon Nanotube Sensor

    SciTech Connect (OSTI)

    Perez, M. S.; Lerner, B.; Boselli, A.; Lamagna, A. [Grupo MEMS, Comision Nacional de Energia Atomica, Buenos Aires (Argentina); Obregon, P. D. Pareja; Julian, P. M.; Mandolesi, P. S. [Dpto. de Ing. Electrica y de Computadoras, Universidad Nacional del Sur, Bahia Blanca (Argentina); Buffa, F. A. [INTEMA Facultad de Ingenieria, Universidad Nacional de Mar del Plata, Mar del Plata (Argentina)

    2009-05-23

    Recently carbon nanotubes (CNTs) have been gaining their importance as sensors for gases, temperature and chemicals. Advances in fabrication processes simplify the formation of CNT sensor on silicon substrate. We have integrated single wall carbon nanotubes (SWCNTs) with complementary metal oxide semiconductor process (CMOS) to produce a chip sensor system. The sensor prototype was designed and fabricated using a 0.30 um CMOS process. The main advantage is that the device has a voltage amplifier so the electrical measure can be taken and amplified inside the sensor. When the conductance of the SWCNTs varies in response to media changes, this is observed as a variation in the output tension accordingly.

  14. Development of sensors and sensing technology for hydrogen fuel cell vehicle applications

    SciTech Connect (OSTI)

    Brosha, Eric L; Sekhar, Praveen K; Mukundan, Rangchary; Williamson, Todd L; Barzon, Fernando H; Woo, Leta Y; Glass, Robert S

    2010-01-01

    One related area of hydrogen fuel cell vehicle (FCV) development that cannot be overlooked is the anticipated requirement for new sensors for both the monitoring and control of the fuel cell's systems and for those devices that will be required for safety. Present day automobiles have dozens of sensors on-board including those for IC engine management/control, sensors for state-of-health monitoring/control of emissions systems, sensors for control of active safety systems, sensors for triggering passive safety systems, and sensors for more mundane tasks such as fluids level monitoring to name the more obvious. The number of sensors continues to grow every few years as a result of safety mandates but also in response to consumer demands for new conveniences and safety features.

  15. Increasing the effectiveness of reachback and remote command and control

    SciTech Connect (OSTI)

    McGee, David R.

    2002-12-02

    Commanders and their staff, when geographically dispersed, continue to choose what they find to be the most effective remote collaboration tools: email and radio messages. Even command and control systems that provide a unified view of the battlefield among remote collaborators are often supplanted by more traditional tools, such as a large paper map (McGee, Cohen & Wu, 2000). Indeed, today's computer interfaces often impose too high a barrier for the capture and delivery of situational assessment (McGee, Cohen, Wesson & Horman, 2002). To compensate, commanders traditionally meet face-to-face at least once daily to debrief each other on the outcome of the day's fight and to coordinate a strategy for the next day's engagement. Each of these meetings presents a risk to commanders, in addition to lost time during travel and various other concerns. Ongoing activity at higher echelons may consist of this activity continuously. At lower echelons, coordination is typically mediated by a radio or other messaging platform. Common to each of these scenarios, the coordination and collaboration is mediated by physical tools, e.g., an up-to-date common operational picture. Much of the promise of collaboration technology, from video-conferencing to realtime collaboration tools, is meant to alleviate the need for face-to-face meetings and improve moment-to-moment coordination. However, these tools fall woefully short of meeting the needs of commanders in the battlefield.

  16. Monitoring system including an electronic sensor platform and an interrogation transceiver

    DOE Patents [OSTI]

    Kinzel, Robert L.; Sheets, Larry R.

    2003-09-23

    A wireless monitoring system suitable for a wide range of remote data collection applications. The system includes at least one Electronic Sensor Platform (ESP), an Interrogator Transceiver (IT) and a general purpose host computer. The ESP functions as a remote data collector from a number of digital and analog sensors located therein. The host computer provides for data logging, testing, demonstration, installation checkout, and troubleshooting of the system. The IT transmits signals from one or more ESP's to the host computer to the ESP's. The IT host computer may be powered by a common power supply, and each ESP is individually powered by a battery. This monitoring system has an extremely low power consumption which allows remote operation of the ESP for long periods; provides authenticated message traffic over a wireless network; utilizes state-of-health and tamper sensors to ensure that the ESP is secure and undamaged; has robust housing of the ESP suitable for use in radiation environments; and is low in cost. With one base station (host computer and interrogator transceiver), multiple ESP's may be controlled at a single monitoring site.

  17. Hydrocarbon sensors and materials therefor

    DOE Patents [OSTI]

    Pham, Ai Quoc (San Jose, CA); Glass, Robert S. (Livermore, CA)

    2000-01-01

    An electrochemical hydrocarbon sensor and materials for use in sensors. A suitable proton conducting electrolyte and catalytic materials have been found for specific application in the detection and measurement of non-methane hydrocarbons. The sensor comprises a proton conducting electrolyte sandwiched between two electrodes. At least one of the electrodes is covered with a hydrocarbon decomposition catalyst. Two different modes of operation for the hydrocarbon sensors can be used: equilibrium versus non-equilibrium measurements and differential catalytic. The sensor has particular application for on-board monitoring of automobile exhaust gases to evaluate the performance of catalytic converters. In addition, the sensor can be utilized in monitoring any process where hydrocarbons are exhausted, for instance, industrial power plants. The sensor is low cost, rugged, sensitive, simple to fabricate, miniature, and does not suffer cross sensitivities.

  18. Two terminal micropower radar sensor

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1995-01-01

    A simple, low power ultra-wideband radar motion sensor/switch configuration connects a power source and load to ground. The switch is connected to and controlled by the signal output of a radar motion sensor. The power input of the motion sensor is connected to the load through a diode which conducts power to the motion sensor when the switch is open. A storage capacitor or rechargeable battery is connected to the power input of the motion sensor. The storage capacitor or battery is charged when the switch is open and powers the motion sensor when the switch is closed. The motion sensor and switch are connected between the same two terminals between the source/load and ground.

  19. Two terminal micropower radar sensor

    DOE Patents [OSTI]

    McEwan, T.E.

    1995-11-07

    A simple, low power ultra-wideband radar motion sensor/switch configuration connects a power source and load to ground. The switch is connected to and controlled by the signal output of a radar motion sensor. The power input of the motion sensor is connected to the load through a diode which conducts power to the motion sensor when the switch is open. A storage capacitor or rechargeable battery is connected to the power input of the motion sensor. The storage capacitor or battery is charged when the switch is open and powers the motion sensor when the switch is closed. The motion sensor and switch are connected between the same two terminals between the source/load and ground. 3 figs.

  20. Nuclear sensor signal processing circuit

    DOE Patents [OSTI]

    Kallenbach, Gene A. (Bosque Farms, NM); Noda, Frank T. (Albuquerque, NM); Mitchell, Dean J. (Tijeras, NM); Etzkin, Joshua L. (Albuquerque, NM)

    2007-02-20

    An apparatus and method are disclosed for a compact and temperature-insensitive nuclear sensor that can be calibrated with a non-hazardous radioactive sample. The nuclear sensor includes a gamma ray sensor that generates tail pulses from radioactive samples. An analog conditioning circuit conditions the tail-pulse signals from the gamma ray sensor, and a tail-pulse simulator circuit generates a plurality of simulated tail-pulse signals. A computer system processes the tail pulses from the gamma ray sensor and the simulated tail pulses from the tail-pulse simulator circuit. The nuclear sensor is calibrated under the control of the computer. The offset is adjusted using the simulated tail pulses. Since the offset is set to zero or near zero, the sensor gain can be adjusted with a non-hazardous radioactive source such as, for example, naturally occurring radiation and potassium chloride.

  1. MHK ISDB/Sensors/Wave and Tide Sensor 5218 | Open Energy Information

    Open Energy Info (EERE)

    MHK ISDBSensorsWave and Tide Sensor 5218 < MHK ISDB Jump to: navigation, search MHK Instrumentation & Sensor Database Menu Home Search Add Instrument Add Sensor Add Company...

  2. Silicon Sensors for Trackers at High-Luminosity Environment

    E-Print Network [OSTI]

    Timo Peltola

    2015-03-12

    The planned upgrade of the LHC accelerator at CERN, namely the high luminosity (HL) phase of the LHC (HL-LHC foreseen for 2023), will result in a more intense radiation environment than the present tracking system was designed for. The required upgrade of the all-silicon central trackers at the ALICE, ATLAS, CMS and LHCb experiments will include higher granularity and radiation hard sensors. The radiation hardness of the new sensors must be roughly an order of magnitude higher than the one of LHC detectors. To address this, a massive R&D program is underway within the CERN RD50 collaboration "Development of Radiation Hard Semiconductor Devices for Very High Luminosity Colliders" to develop silicon sensors with sufficient radiation tolerance. Research topics include the improvement of the intrinsic radiation tolerance of the sensor material and novel detector designs with benefits like reduced trapping probability (thinned and 3D sensors), maximized sensitive area (active edge sensors) and enhanced charge carrier generation (sensors with intrinsic gain). A review of the recent results from both measurements and TCAD simulations of several detector technologies and silicon materials at radiation levels expected for HL-LHC will be presented.

  3. Remotely Interrogated Passive Polarizing Dosimeter (RIPPeD).

    SciTech Connect (OSTI)

    Kemme, Shanalyn A.; Buller, Daniel L.; Dirk, Shawn M.; Boye, Robert R.; Samora, Sally; Washburn, Cody M.; Wheeler, David Roger

    2008-09-01

    Conductive polymers have become an extremely useful class of materials for many optical applications. We have developed an electrochemical growth method for depositing highly conductive ({approx}100 S/cm) polypyrrole. Additionally, we have adapted advanced fabrication methods for use with the polypyrrole resulting in gratings with submicron features. This conductive polymer micro-wire grid provides an optical polarizer with unique properties. When the polymer is exposed to ionizing radiation, its conductivity is affected and the polarization properties of the device, specifically the extinction ratio, change in a corresponding manner. This change in polarization properties can be determined by optically interrogating the device, possibly from a remote location. The result is a passive radiation-sensitive sensor with very low optical visibility. The ability to interrogate the device from a safe standoff distance provides a device useful in potentially dangerous environments. Also, the passive nature of the device make it applicable in applications where external power is not available. We will review the polymer deposition, fabrication methods and device design and modeling. The characterization of the polymer's sensitivity to ionizing radiation and optical testing of infrared polarizers before and after irradiation will also be presented. These experimental results will highlight the usefulness of the conductive infrared polarizer to many security and monitoring applications.

  4. Development of remote crane system for use inside small argon hot-cell

    SciTech Connect (OSTI)

    Lee, Jong Kwang; Park, Byung Suk; Yu, Seung-Nam; Kim, Kiho; Cho, Ilje

    2013-07-01

    In this paper, we describe the design of a novel crane system for the use in a small argon hot-cell where only a pair of master-slave manipulators (MSM) is available for the remote maintenance of the crane. To increase the remote maintainability in the space-limited environment, we devised a remote actuation mechanism in which electrical parts consisting of a servo-motor, a position sensor, and two limit switches located inside the workspace of the MSM transmit power to the mechanical parts located in the ceiling. Even though the design concept does not provide thoroughly sufficient solution because the mechanical parts are placed out of the MSM's workspace, the durability of mechanical parts can be easily increased if they have a high safety margin. Therefore, the concept may be one of the best solutions for our special crane system. In addition, we developed a servo-control system based on absolute positioning technology; therefore, it is possible for us to perform the given tasks more safely through an automatic operation. (authors)

  5. Thin film hydrogen sensor

    DOE Patents [OSTI]

    Lauf, R.J.; Hoffheins, B.S.; Fleming, P.H.

    1994-11-22

    A hydrogen sensor element comprises an essentially inert, electrically-insulating substrate having a thin-film metallization deposited thereon which forms at least two resistors on the substrate. The metallization comprises a layer of Pd or a Pd alloy for sensing hydrogen and an underlying intermediate metal layer for providing enhanced adhesion of the metallization to the substrate. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors, and at least one of the resistors is left uncovered. The difference in electrical resistances of the covered resistor and the uncovered resistor is related to hydrogen concentration in a gas to which the sensor element is exposed. 6 figs.

  6. Rigid particulate matter sensor

    DOE Patents [OSTI]

    Hall, Matthew (Austin, TX)

    2011-02-22

    A sensor to detect particulate matter. The sensor includes a first rigid tube, a second rigid tube, a detection surface electrode, and a bias surface electrode. The second rigid tube is mounted substantially parallel to the first rigid tube. The detection surface electrode is disposed on an outer surface of the first rigid tube. The detection surface electrode is disposed to face the second rigid tube. The bias surface electrode is disposed on an outer surface of the second rigid tube. The bias surface electrode is disposed to face the detection surface electrode on the first rigid tube. An air gap exists between the detection surface electrode and the bias surface electrode to allow particulate matter within an exhaust stream to flow between the detection and bias surface electrodes.

  7. INSENS sensor system

    SciTech Connect (OSTI)

    Myers, D.W.; Baker, J.; Benzel, D.M.; Fuess, D.A.

    1993-09-29

    This paper describes an unattended ground sensor system that has been developed for the immigration and Naturalization Service (INS). The system, known as INSENS, was developed at the Lawrence Livermore National Laboratory for use by the United States Border Patrol. This system assists in the detection of illegal entry of aliens and contraband (illegal drugs, etc.) into the United States along its land borders. Key to the system is its flexible modular design which allows future software and hardware enhancements to the system without altering the fundamental architecture of the system. Elements of the system include a sensor system capable of processing signals from multiple directional probes, a repeater system, and a handheld monitor system. Seismic, passive infrared (PIR), and magnetic probes are currently supported. The design of the INSENS system elements and their performance are described.

  8. Remote Operations for LHC and CMS

    SciTech Connect (OSTI)

    Gottschalk, E.E.; /Fermilab

    2007-04-01

    Commissioning the Large Hadron Collider (LHC) and its experiments will be a vital part of the worldwide high energy physics program beginning in 2007. A remote operations center has been built at Fermilab to contribute to commissioning and operations of the LHC and the Compact Muon Solenoid (CMS) experiment, and to develop new capabilities for real-time data analysis and monitoring for LHC, CMS, and grid computing. Remote operations will also be essential to a future International Linear Collider with its multiple, internationally distributed control rooms. In this paper we present an overview of Fermilab's LHC@FNAL remote operations center for LHC and CMS, describe what led up to the development of the center, and describe noteworthy features of the center.

  9. Rotational rate sensor

    DOE Patents [OSTI]

    Hunter, Steven L. (Livermore, CA)

    2002-01-01

    A rate sensor for angular/rotational acceleration includes a housing defining a fluid cavity essentially completely filled with an electrolyte fluid. Within the housing, such as a toroid, ions in the fluid are swept during movement from an excitation electrode toward one of two output electrodes to provide a signal for directional rotation. One or more ground electrodes within the housing serve to neutralize ions, thus preventing any effect at the other output electrode.

  10. Small, Inexpensive Combined NOx Sensor and O2 Sensor

    SciTech Connect (OSTI)

    W. N. Lawless; C. F. Clark, Jr.

    2008-09-08

    It has been successfully demonstrated in this program that a zirconia multilayer structure with rhodium-based porous electrodes performs well as an amperometric NOx sensor. The sensitivity of the sensor bodies operating at 650 to 700 C is large, with demonstrated current outputs of 14 mA at 500 ppm NOx from sensors with 30 layers. The sensor bodies are small (4.5 x 4.2 x 3.1 mm), rugged, and inexpensive. It is projected the sensor bodies will cost $5 - $10 in production. This program has built on another successful development program for an oxygen sensor based on the same principles and sponsored by DOE. This oxygen sensor is not sensitive to NOx. A significant technical hurdle has been identified and solved. It was found that the 100% Rh electrodes oxidize rapidly at the preferred operating temperatures of 650 - 700 C, and this oxidation is accompanied by a volume change which delaminates the sensors. The problem was solved by using alloys of Rh and Pt. It was found that a 10%/90% Rh/Pt alloy dropped the oxidation rate of the electrodes by orders of magnitude without degrading the NOx sensitivity of the sensors, allowing long-term stable operation at the preferred operating temperatures. Degradation in the sensor output caused by temperature cycling was identified as a change in resistance at the junction between the sensor body and the external leads attached to the sensor body. The degradation was eliminated by providing strong mechanical anchors for the wire and processing the junctions to obtain good electrical bonds. The NOx sensors also detect oxygen and therefore the fully-packaged sensor needs to be enclosed with an oxygen sensor in a small, heated zirconia chamber exposed to test gas through a diffusion plug which limits the flow of gas from the outside. Oxygen is pumped from the interior of the chamber to lower the oxygen content and the combination of measurements from the NOx and oxygen sensors yields the NOx content of the gas. Two types of electronic control units were designed and built. One control unit provides independent constant voltages to the NOx and oxygen sensors and reads the current from them (that is, detects the amount of test gas present). The second controller holds the fully-assembled sensor at the desired operating temperature and controllably pumps excess oxygen from the test chamber. While the development of the sensor body was a complete success, the development of the packaging was only partially successful. All of the basic principles were demonstrated, but the packaging was too complex to optimize the operation within the resources of the program. Thus, no fully-assembled sensors were sent to outside labs for testing of cross-sensitivities, response times, etc. Near the end of the program, Sensata Technologies of Attleboro, MA tested the sensor bodies and confirmed the CeramPhysics measurements as indicated in the following attached letter. Sensata was in the process of designing their own packaging for the sensor and performing cross-sensitivity tests when they stopped all sensor development work due to the automotive industry downturn. Recently Ceramatec Inc. of Salt Lake City has expressed an interest in testing the sensor, and other licensing opportunities are being pursued.

  11. Ultra-wideband impedance sensor

    DOE Patents [OSTI]

    McEwan, T.E.

    1999-03-16

    The ultra-wideband impedance sensor (UWBZ sensor, or Z-sensor) is implemented in differential and single-ended configurations. The differential UWBZ sensor employs a sub-nanosecond impulse to determine the balance of an impedance bridge. The bridge is configured as a differential sample-and-hold circuit that has a reference impedance side and an unknown impedance side. The unknown impedance side includes a short transmission line whose impedance is a function of the near proximity of objects. The single-ended UWBZ sensor eliminates the reference side of the bridge and is formed of a sample and hold circuit having a transmission line whose impedance is a function of the near proximity of objects. The sensing range of the transmission line is bounded by the two-way travel time of the impulse, thereby eliminating spurious Doppler modes from large distant objects that would occur in a microwave CW impedance bridge. Thus, the UWBZ sensor is a range-gated proximity sensor. The Z-sensor senses the near proximity of various materials such as metal, plastic, wood, petroleum products, and living tissue. It is much like a capacitance sensor, yet it is impervious to moisture. One broad application area is the general replacement of magnetic sensors, particularly where nonferrous materials need to be sensed. Another broad application area is sensing full/empty levels in tanks, vats and silos, e.g., a full/empty switch in water or petroleum tanks. 2 figs.

  12. Ultra-wideband impedance sensor

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1999-01-01

    The ultra-wideband impedance sensor (UWBZ sensor, or Z-sensor) is implemented in differential and single-ended configurations. The differential UWBZ sensor employs a sub-nanosecond impulse to determine the balance of an impedance bridge. The bridge is configured as a differential sample-and-hold circuit that has a reference impedance side and an unknown impedance side. The unknown impedance side includes a short transmission line whose impedance is a function of the near proximity of objects. The single-ended UWBZ sensor eliminates the reference side of the bridge and is formed of a sample and hold circuit having a transmission line whose impedance is a function of the near proximity of objects. The sensing range of the transmission line is bounded by the two-way travel time of the impulse, thereby eliminating spurious Doppler modes from large distant objects that would occur in a microwave CW impedance bridge. Thus, the UWBZ sensor is a range-gated proximity sensor. The Z-sensor senses the near proximity of various materials such as metal, plastic, wood, petroleum products, and living tissue. It is much like a capacitance sensor, yet it is impervious to moisture. One broad application area is the general replacement of magnetic sensors, particularly where nonferrous materials need to be sensed. Another broad application area is sensing full/empty levels in tanks, vats and silos, e.g., a full/empty switch in water or petroleum tanks.

  13. Use of Remote Technology in the Surface Water Environmental Monitoring Program at SRS Reducing Measurements in the Field - 13336

    SciTech Connect (OSTI)

    Eddy, T.; Terry, B.; Meyer, A.; Hall, J.; Allen, P.; Hughey, D.; Hartley, T.

    2013-07-01

    There are a wide range of sensor and remote technology applications available for use in environmental monitoring programs. Each application has its own set of limitations and can be challenging when attempting to utilize it under diverse environmental field conditions. The Savannah River Site Environmental Monitoring Program has implemented several remote sensing and surface water flow technologies that have increased the quality of the data while reducing the number of field measurements. Implementation of this technology reduced the field time for personnel that commute across the Savannah River Site (SRS) over a span of 310 square miles. The wireless surface water flow technology allows for immediate notification of changing field conditions or equipment failure thus reducing data-loss or erroneous field data and improving data-quality. This wireless flow technology uses the stage-to-flow methodology coupled with implementation of a robust highly accurate Acoustic Doppler Profiler system for measuring discharge under various field conditions. Savings for implementation of the wireless flow application and Flowlink{sup R} technology equates to approximately 1175 hours annually for the radiological liquid effluent and surveillance programs. The SonTek River Suveyor and Flowtracker technologies are utilized for calibration of the wireless flow monitoring devices in the site streams and validation of effluent flows at the SRS. Implementation of similar wireless devices is also planned in the National Pollutant Discharge Elimination System (NPDES) Storm-water Monitoring Program. SRS personnel have been developing a unique flow actuator device. This device activates an ISCO{sup TM} automated sampler under flowing conditions at storm-water outfall locations across the site. This technology is unique in that it was designed to be used under field conditions with rapid changes in flow and sedimentation where traditional actuators have been unsuccessful in tripping the automated sampler. In addition, automated rain gauges will be tied into this technology for immediate notification of rain at storm-water locations further enhancing the automation of environmental data collection. These technological improvements at SRS have led to data-quality improvements while reducing the field technician time in the field and costs for maintaining the traditional environmental monitoring applications. (authors)

  14. Ultra-High Temperature Distributed Wireless Sensors

    SciTech Connect (OSTI)

    May, Russell; Rumpf, Raymond; Coggin, John; Davis, Williams; Yang, Taeyoung; O'Donnell, Alan; Bresnahan, Peter

    2013-03-31

    Research was conducted towards the development of a passive wireless sensor for measurement of temperature in coal gasifiers and coal-fired boiler plants. Approaches investigated included metamaterial sensors based on guided mode resonance filters, and temperature-sensitive antennas that modulate the frequency of incident radio waves as they are re-radiated by the antenna. In the guided mode resonant filter metamaterial approach, temperature is encoded as changes in the sharpness of the filter response, which changes with temperature because the dielectric loss of the guided mode resonance filter is temperature-dependent. In the mechanically modulated antenna approach, the resonant frequency of a vibrating cantilever beam attached to the antenna changes with temperature. The vibration of the beam perturbs the electrical impedance of the antenna, so that incident radio waves are phase modulated at a frequency equal to the resonant frequency of the vibrating beam. Since the beam resonant frequency depends on temperature, a Doppler radar can be used to remotely measure the temperature of the antenna. Laboratory testing of the guided mode resonance filter failed to produce the spectral response predicted by simulations. It was concluded that the spectral response was dominated by spectral reflections of radio waves incident on the filter. Laboratory testing of the mechanically modulated antenna demonstrated that the device frequency shifted incident radio waves, and that the frequency of the re-radiated waves varied linearly with temperature. Radio wave propagation tests in the convection pass of a small research boiler plant identified a spectral window between 10 and 13 GHz for low loss propagation of radio waves in the interior of the boiler.

  15. A wireless sensor tag platform for container security and integrity

    SciTech Connect (OSTI)

    Amaya, Ivan A.; Cree, Johnathan V.; Mauss, Fredrick J.

    2011-05-06

    Cargo containers onboard ships are widely used in the global supply chain. The need for container security is evidenced by the Container Security Initiative launched by the U.S. Bureau of Customs and Border Protection (CBP). One method of monitoring cargo containers is using low power wireless sensor tags. The wireless sensor tags are used to set up a network that is comprised of tags internal to the container and a central device. The sensor network reports alarms and other anomalies to a central device, which then relays the message to an outside network upon arrival at the destination port. This allows the port authorities to have knowledge of potential security or integrity issues before physically examining the container. Challenges of using wireless sensor tag networks for container security include battery life, size, environmental conditions, information security, and cost among others. PNNL developed an active wireless sensor tag platform capable of reporting data wirelessly to a central node as well as logging data to nonvolatile memory. The tags, operate at 2.4 GHz over an IEEE 802.15.4 protocol, and were designed to be distributed throughout the inside of a shipping container in the upper support frame. The tags are mounted in a housing that allows for simple and efficient installation or removal prior to, during, or after shipment. The distributed tags monitor the entire container volume. The sensor tag platform utilizes low power electronics and provides an extensible sensor interface for incorporating a wide range of sensors including chemical, biological, and environmental sensors.

  16. Ripeness sensor development

    SciTech Connect (OSTI)

    Not Available

    1992-11-01

    About 20--25% of the total production of fruits and vegetables in the USA must be discarded after harvest About 25--30% of this loss is the result of over-ripening and this loss represents about 8.39 [times] 10[sup 12] BTU of invested energy every year. This invested energy could be saved by non-destructive ripeness sensing. Sweetness is an important indicator of fruit quality and highly correlated with ripeness in most fruits. Research to develop a non-destructive fruit ripeness sensor has been conducted in the Agricultural Engineering Department at Purdue University. It is based on [sup 1]H-MR (proton Magnetic Resonance). A first generation prototype of the ripeness sensor based on [sup 1]H-MR was built and tested with. Results show that the sensor can discriminate small fruit (0.75 in diameter or smaller) differing in sugar content by 6%. This prototype can separate the fruit into at least two groups: one ripe and the other not ripe. The estimated cost for such a ripeness sensor is around $4,000. The signal sensitivity of the prototype can be improved to enable it to differentiate between fruits varying in sugar content by only 1 or 2% by using water peak suppression techniques to recover relatively weak sugar resonance signals in intact fruits, modifying circuits to eliminate noise, leakage and distortion of input/output signals, improving the magnetic console to get a higher magnetic field and better homogeneity, and designing a probe to achieve a higher signal-to-noise (S/N) ratio. As research continues a second generation ripeness sensor will be developed which will incorporate many of the improvements and which will be suitable for commercial use. Additional research will allow application of the technique to a wider range of fruit sizes (from blueberries to watermelons). This report describes estimated energy savings, feasibility studies, development of the initial prototype, and preliminary evaluation of the first generation prototype.

  17. The Use of Remote Cameras to Monitor Traffic Activity 

    E-Print Network [OSTI]

    Padilla Paniagua, Manuel Antonio

    2013-12-09

    observations made by month and hour were dependent on each of the road types by Pearson’s Chi-squared test (P March/October) and hours (900...

  18. Active Disks -Remote Execution for Network-Attached Storage

    E-Print Network [OSTI]

    , Seagate, Wind River Systems, Siemens, and StorageTek. The views and conclusions contained in this document power on individual disk drives to run application- level code. Moving portions of an application of the optimizations that are possible with more knowl- edge available directly at the devices. It also compares

  19. Active Disks Remote Execution for NetworkAttached Storage

    E-Print Network [OSTI]

    , Seagate, Wind River Systems, Siemens, and StorageTek. The views and conclusions contained in this document of the processing power on individual disk drives to run application­ level code. Moving portions of an application of the optimizations that are possible with more knowl­ edge available directly at the devices. It also compares

  20. ARM - Evaluation Product - KAZR Active Remotely-Sensed Cloud Locations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments? WeDatastreamstps DocumentationAtlanticENA Contacts ENAProductsHSRL Corrected for Ship(KAZRARSCL)

  1. Active and Passive Remote Sensing Diagram | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar Energy LLC Jump to:Izu-Oshima Volcano, Central Japan |and

  2. AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION

    SciTech Connect (OSTI)

    Jerry Myers

    2003-05-13

    Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. This six-month technical report summarizes the progress for each of the proposed tasks, discusses project concerns, and outlines near-term goals. Ophir has completed a data survey of two major natural gas pipeline companies on the design requirements for an airborne, optical remote sensor. The results of this survey are disclosed in this report. A substantial amount of time was spent on modeling the expected optical signal at the receiver at different absorption wavelengths, and determining the impact of noise sources such as solar background, signal shot noise, and electronic noise on methane and ethane gas detection. Based upon the signal to noise modeling and industry input, Ophir finalized the design requirements for the airborne sensor, and released the critical sensor light source design requirements to qualified vendors. Responses from the vendors indicated that the light source was not commercially available, and will require a research and development effort to produce. Three vendors have responded positively with proposed design solutions. Ophir has decided to conduct short path optical laboratory experiments to verify the existence of methane and absorption at the specified wavelength, prior to proceeding with the light source selection. Techniques to eliminate common mode noise were also evaluated during the laboratory tests. Finally, Ophir has included a summary of the potential concerns for project success and has established future goals.

  3. Sensor Compendium - A Snowmass Whitepaper-

    SciTech Connect (OSTI)

    Artuso, M. [Syracuse Univ., NY (United States); Battaglia, M. [Univ. of California, Santa Cruz, CA (United States); Bolla, G. [Purdue Univ., West Lafayette, IN (United States); Bortoletto, D. [Purdue Univ., West Lafayette, IN (United States); Caberera, B. [Stanford Univ., CA (United States); Carlstrom, J E [Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Chang, C. L. [Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Cooper, W. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Da Via, C. [Univ. of Manchester (United Kingdom); Demarteau, M. [Argonne National Lab. (ANL), Argonne, IL (United States); Fast, J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Frisch, H. [Univ. of Chicago, IL (United States), et al.

    2013-10-01

    Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include ionization deposited, phonons created, or light emitted from excitations of the material. The individual sensors are then typically arrayed for detection of individual particles or groups of particles. Mounting of new, ever higher performance experiments, often depend on advances in sensors in a range of performance characteristics. These performance metrics can include position resolution for passing particles, time resolution on particles impacting the sensor, and overall rate capabilities. In addition the feasible detector area and cost frequently provides a limit to what can be built and therefore is often another area where improvements are important. Finally, radiation tolerance is becoming a requirement in a broad array of devices. We present a status report on a broad category of sensors, including challenges for the future and work in progress to solve those challenges.

  4. Ris-R-1336(EN) Fundamentals for Remote Structural

    E-Print Network [OSTI]

    Risø-R-1336(EN) Fundamentals for Remote Structural Health Monitoring of Wind Turbine Blades) Fundamentals for Remote Structural Health Monitoring of Wind Turbine Blades - a Preproject Bent F. Sørensen

  5. V-103: RSA Authentication Agent Lets Remote Users Bypass Authenticatio...

    Broader source: Energy.gov (indexed) [DOE]

    Authentication Agent 7.1 for Microsoft Windows and RSA Authentication Client 3.5 Access Control Vulnerability T-704: RSA enVision Lets Remote Users View Files and Remote...

  6. T-574: Google Chrome Multiple Flaws Let Remote Users Execute...

    Broader source: Energy.gov (indexed) [DOE]

    A remote user can bypass the pop-up blocker. A remote user can create specially crafted HTML that, when loaded by the target user, will execute arbitrary code on the target system....

  7. On-Road Emissions in Asia Measured by Remote Sensing.

    E-Print Network [OSTI]

    Denver, University of

    On-Road Emissions in Asia Measured by Remote Sensing. · Donald H. Stedman, Gary A. Bishop on-road advantage · Large on-road emissions cause poor air quality. · Remote sensing measures on

  8. User authentication and remote execution across administrative domains

    E-Print Network [OSTI]

    Kaminsky, Michael, 1976-

    2004-01-01

    (cont.) selectively delegates authority to processes running on remote machines that need to access other resources. The delegation mechanism lets users incrementally construct trust policies for remote machines. Measurements ...

  9. Graduate Certificate in Remote Sensing Texas A&M University

    E-Print Network [OSTI]

    are applied to wide-ranging fields such as environmental/resource management, marketing, facility management of Ecosystem Science and Management and Geography 651 ­ Remote Sensing for Geographical Analysis · ESSM 655 ­ Remote Sensing for Natural Resources

  10. Processing large sensor data sets for safeguards : the knowledge generation system.

    SciTech Connect (OSTI)

    Thomas, Maikel A.; Smartt, Heidi Anne; Matthews, Robert F.

    2012-04-01

    Modern nuclear facilities, such as reprocessing plants, present inspectors with significant challenges due in part to the sheer amount of equipment that must be safeguarded. The Sandia-developed and patented Knowledge Generation system was designed to automatically analyze large amounts of safeguards data to identify anomalous events of interest by comparing sensor readings with those expected from a process of interest and operator declarations. This paper describes a demonstration of the Knowledge Generation system using simulated accountability tank sensor data to represent part of a reprocessing plant. The demonstration indicated that Knowledge Generation has the potential to address several problems critical to the future of safeguards. It could be extended to facilitate remote inspections and trigger random inspections. Knowledge Generation could analyze data to establish trust hierarchies, to facilitate safeguards use of operator-owned sensors.

  11. U.S. IOOS Regional Association Ocean Acidificiation Monitoring Activities April 2013 update

    E-Print Network [OSTI]

    Activity Funding Source ACT FY12 ­ pH sensor evaluation ACT Fy10 and FY11 ­ pCO2 sensor evaluation ACT and biogeochemical controls on OA. AOOS AOOS contributes funds to a consortium to support maintenance of OA sensors, AOOS funds were used to add OA sensors to an NSF-funded mooring in the Chukchi Sea, enabling

  12. Estimation of Indoor Physical Activity Level Based on Footstep Vibration Signal Measured

    E-Print Network [OSTI]

    Helal, Abdelsalam

    . Dif- ferent from image sensor and sound sensor, MEMS accelerometer sensor can measure some biomedical, Localization of footstep source, MEMS accelerometer, Personal health care, Sensor net- work, Smart home. 1Estimation of Indoor Physical Activity Level Based on Footstep Vibration Signal Measured by MEMS

  13. Shape memory alloy thaw sensors

    DOE Patents [OSTI]

    Shahinpoor, M.; Martinez, D.R.

    1998-04-07

    A sensor permanently indicates that it has been exposed to temperatures exceeding a critical temperature for a predetermined time period. An element of the sensor made from shape memory alloy changes shape when exposed, even temporarily, to temperatures above the austenitic temperature of the shape memory alloy. The shape change of the SMA element causes the sensor to change between two readily distinguishable states. 16 figs.

  14. Sensor Switch's Bright Manufacturing Future

    Broader source: Energy.gov [DOE]

    The switch helps with cost effective energy savings by turning off the lights when an occupancy sensor says the room is empty.

  15. MEMS Resonant Strain Sensor Integration

    E-Print Network [OSTI]

    Myers, David Richard

    2010-01-01

    Strap-down microelectromechanical MEMS sensors for high-gdate of microelectromechanical systems (MEMS) is a bitmicroelectromechanical resonant output gyroscope. MEMS 2002,

  16. SensorGrid: Integrating Sensor Networks and Grid Computing Chen-Khong Tham1

    E-Print Network [OSTI]

    Melbourne, University of

    SensorGrid: Integrating Sensor Networks and Grid Computing Chen-Khong Tham1 and Rajkumar Buyya2 Keywords: Sensors, Sensor Networks, Grid computing, SensorML, SensorWeb. 1. Introduction Recent advances in electronic circuit miniaturization and micro-electromechanical systems (MEMS) have led to the creation

  17. Exploring LoadBalance to Dispatch Mobile Sensors in Wireless Sensor Networks

    E-Print Network [OSTI]

    Tseng, Yu-Chee

    ­sensing MEMS and wireless com­ munication technologies have promoted the development of wireless sensorExploring Load­Balance to Dispatch Mobile Sensors in Wireless Sensor Networks You­Chiun Wang, Wen, a hybrid sensor network consisting of static and mobile sensors is considered, where static sensors

  18. Sensors and Actuators A 137 (2007) 147156 A single inputsingle output mass sensor based

    E-Print Network [OSTI]

    2007-01-01

    reserved. Keywords: MEMS; Resonant sensor; Chemical and biological sensors; Mass sensor; Localization the inherent advantages MEMS-based sensor plat- forms have over their macroscale counterparts, namelySensors and Actuators A 137 (2007) 147­156 A single input­single output mass sensor based

  19. U-231: Cisco ASA SIP and WebVPN Bugs Let Remote Users Deny Service

    Broader source: Energy.gov [DOE]

    Two vulnerabilities were reported in Cisco ASA. A remote or remote authenticated user can cause denial of service conditions.

  20. Trading Computation & Precision for Energy in Wireless Sensor Networks with Applications

    E-Print Network [OSTI]

    Kalpakis, Konstantinos

    Trading Computation & Precision for Energy in Wireless Sensor Networks with Applications, and how we affect our environment. The limited energy of those sensors poses the challenge of using such systems in an energy efficient man- ner to perform various activities. In many of these activi- ties

  1. Joint Charging and Rate Allocation for Utility Maximization in Sustainable Sensor Networks

    E-Print Network [OSTI]

    Qiao, Daji

    repository of a sensor node is co-affected by three factors: uncontrollable ambient energy harvesting, communication, and sensing activities while guaranteeing non-empty energy repositories at all sensor nodes. JCRA. Harvesting ambient energy such as solar [1], wind [2], and vibration [3] has been a cost- free

  2. Towards optimal energy-quality tradeoff in tracking via sensor Alessio Benavoli and Luigi Chisci

    E-Print Network [OSTI]

    Chisci, Luigi

    Towards optimal energy-quality tradeoff in tracking via sensor networks Alessio Benavoli and Luigi and which nodes to activate around the target's location so as to attain an appropriate quality-energy about the current sensor energy status. This is certainly efficient in terms of tracking quality

  3. Z .Sensors and Actuators B 60 1999 228237 www.elsevier.nlrlocatersensorb

    E-Print Network [OSTI]

    Mandelis, Andreas

    variety of hydrogen gas sensors, most are based on electronic devices and use palladium as the active mem hydrogen sensor system based on photopyroelectric purely-thermal-wave interference Chinhua Wang, Andreas hydrogen gas detection has been developed as a next generation device to earlier Z .photopyroelectric PPE

  4. Geography 115B Remote Sensing Winter 2014

    E-Print Network [OSTI]

    Bookhagen, Bodo

    5 (W) Image classification + Accuracy assessments Required Reading: Introductory Digital Image assessment 9. Feb 10 (M) Classification II/Change Detection Required Reading: Introductory Digital Image the lecture and labs: Introductory Digital Image Processing: A Remote Sensing Perspective, 3rd Edition by J

  5. Dyke quality assessment by remote sensing

    E-Print Network [OSTI]

    Hack, Robert

    Control 2015 (FC2015 ) Dutch Governmental research andDutch Governmental research and development program Solutions for smart flood control 15 Oct 2009 2Reeuwijk - Hack #12;2 RSDYKRSDYK Quality assessment of dykes1 RSDYK Dyke quality assessment by remote sensing and geological information Robert Hack Flood

  6. Remote optical turbulence sensing: present Andrei Tokovinin

    E-Print Network [OSTI]

    Tokovinin, Andrei A.

    . model Detector Data products Rytov approx. Biases Amplitude U(x,y, ,t) Figure 1: Remote optical the turbulent volume. Bright stars (one, two, or several) are most convenient ROTS sources available at no cost of these solar-system bodies pre-selects the light path (a ROTS can only work when the source is visible

  7. Advanced signal processing in geophysical remote sensing

    SciTech Connect (OSTI)

    Witten, A.J.; King, W.C.

    1993-06-01

    This paper describes advanced signal processing methods which have improved the capabilities to detect and image the subsurface environment with geophysical remote sensing techniques. Field results are presented showing target detection, subsurface characterizations, and imaging of insitu waste treatment processes, all previously unachievable with such tools as ground penetrating radar, magnetometry and seismic.

  8. Advanced signal processing in geophysical remote sensing

    SciTech Connect (OSTI)

    Witten, A.J. ); King, W.C. . Dept. of Geography and Environmental Engineering)

    1993-01-01

    This paper describes advanced signal processing methods which have improved the capabilities to detect and image the subsurface environment with geophysical remote sensing techniques. Field results are presented showing target detection, subsurface characterizations, and imaging of insitu waste treatment processes, all previously unachievable with such tools as ground penetrating radar, magnetometry and seismic.

  9. T-704: RSA enVision Lets Remote Users View Files and Remote Authentica...

    Broader source: Energy.gov (indexed) [DOE]

    Allows remote attackers to obtain sensitive information by sniffing the network or leveraging access to a recipient mailbox. PLATFORM: RSA enVision Version(s): 3.x, 4.x ABSTRACT:...

  10. Aalborg Universitet Remote and Centralized Monitoring of PV Power Plants

    E-Print Network [OSTI]

    Sera, Dezso

    Aalborg Universitet Remote and Centralized Monitoring of PV Power Plants Kopacz, Csaba; Spataru., & Kerekes, T. (2014). Remote and Centralized Monitoring of PV Power Plants. In Proceedings of the 14th from vbn.aau.dk on: juli 04, 2015 #12;Remote and Centralized Monitoring of PV Power Plants Csaba Kopacz

  11. Effects of Reduced Connectivity in Rural and Remote Communities

    E-Print Network [OSTI]

    Effects of Reduced Connectivity in Rural and Remote Communities Abstract In this paper we describe ignored yet important user population. Keywords Remote and rural communities, connectivity, qualitative understand user needs in rural and remote communities and what impact lack of connectivity has on users

  12. Wireless Tomography, Part I: A Novel Approach to Remote Sensing

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    Wireless Tomography, Part I: A Novel Approach to Remote Sensing R. C. Qiu, M. C. Wicks, L. Li, Z. Browning.12@us.af.mil Abstract--Wireless tomography, a novel approach to remote sensing, is proposed--radio frequency tomography, remote sensing, cognitive radar, cognitive radio. I. INTRODUCTION The ever increasing

  13. GG671b Remote Sensing Planets Gillis-Davis

    E-Print Network [OSTI]

    GG671b Remote Sensing ­ Planets Gillis-Davis Wednesday 1:30-4:20 POST 544 Description: This course will teach end-to-end principles of remote sensing across electromagnetic spectrum with application state-of-the art remote sensing methods and basic concepts of how to use such data to derive information

  14. Using Remote Sensing for Natural Disaster Management Tara Srihari

    E-Print Network [OSTI]

    Using Remote Sensing for Natural Disaster Management Tara Srihari Department of Computing Sciences these losses. Remote sensing images can be used to provide information about the landscape and environment is focused on developing an infrastructure to make the data collected with remote sensing more widely

  15. COMPLEX WAVELET REGULARIZATION FOR SOLVING INVERSE PROBLEMS IN REMOTE SENSING

    E-Print Network [OSTI]

    Weiss, Pierre

    COMPLEX WAVELET REGULARIZATION FOR SOLVING INVERSE PROBLEMS IN REMOTE SENSING Mika¨el Carlavan Sophia-Antipolis - France ABSTRACT Many problems in remote sensing can be modeled as the min- imization processing: sparsity and regular- ity priors. 1. INTRODUCTION Some problems in remote sensing consist

  16. Remote Sensing in Support of Multilateral Environmental Agreements

    E-Print Network [OSTI]

    Columbia University

    Remote Sensing in Support of Multilateral Environmental Agreements Alex de Sherbinin CIESIN, from 172 in 1970 to more than 475 today · the sophistication of remote sensing and geospatial sets · the number of global and regional initiatives attempting to apply remote sensing (RS

  17. Remote Sensing Messungen zur on-road Bestimmung der

    E-Print Network [OSTI]

    Denver, University of

    LUBETRAX Remote Sensing Messungen zur on-road Bestimmung der Abgase von schweren Motorfahrzeugen, Chur, Zürich, Brugg Dr. Peter Maly (Projektleitung) Dr. Stefan Scherer Dr. G.A. Bishop (Remote Sensing;Inhaltsverzeichnis Zusammenfassung 1 1. Einleitung und Zielsetzung 3 1.1 Remote Sensing Messungen (FEAT) 4 1

  18. Multivariate and Supervised Approaches for Mathematical Morphology in Remote Sensing

    E-Print Network [OSTI]

    Lefèvre, Sébastien

    Multivariate and Supervised Approaches for Mathematical Morphology in Remote Sensing S´ebastien Lef`evre Image Sciences, Computer Sciences and Remote Sensing Laboratory (LSIIT) Models, Image and Vision Team MM Supervised MM Applications in Remote Sensing Conclusion Mathematical Morphology is a powerful

  19. Interactive Multiscale Classification of High-Resolution Remote Sensing Images

    E-Print Network [OSTI]

    Gosselin, Philippe-Henri

    1 Interactive Multiscale Classification of High-Resolution Remote Sensing Images Jefersson Alex dos~ao Abstract The use of remote sensing images (RSIs) as a source of information in agribusiness applications in space occupation. However, the identification and recognition of crop regions in remote sensing images

  20. Thursday, March 15, 2007 POSTER SESSION II: LUNAR REMOTE SENSING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Thursday, March 15, 2007 POSTER SESSION II: LUNAR REMOTE SENSING 6:30 p.m. Fitness Center Mc-Cittert) Planetary Remote Sensing Neutron Count Rate Maps [#2408] This paper evaluates Jansson Van-Cittert's (JVC) image restoration transform for possible application to neutron maps for planetary remote sensing

  1. VISUAL ASSISTANCE TOOLS FOR INTERACTIVE VISUALIZATION OF REMOTE SENSING DATA

    E-Print Network [OSTI]

    Blanz, Volker

    VISUAL ASSISTANCE TOOLS FOR INTERACTIVE VISUALIZATION OF REMOTE SENSING DATA Martin Lambers to interactive visualization of remote sensing data. Index Terms-- Visualization 1. INTRODUCTION Interactive visualization of remote sensing data gives the user much control over the visualization result. In the ideal

  2. A Modular Control System for Remote Subsea Eric Stephen Smith

    E-Print Network [OSTI]

    Wood, Stephen L.

    A Modular Control System for Remote Subsea Equipment by Eric Stephen Smith Bachelor of Science the undersigned committee hereby approve the attached thesis A Modular Control System for Remote Subsea Equipment and Environmental Systems #12;iv Abstract Title: A Modular Control System for Remote Subsea Equipment Author: Eric

  3. ADVANCED CONCEPTS ON REMOTE SENSING OF PRECIPITATION AT

    E-Print Network [OSTI]

    Foufoula-Georgiou, Efi

    ADVANCED CONCEPTS ON REMOTE SENSING OF PRECIPITATION AT MULTIPLE SCALES by SorooSh SorooShian, amirTs Workshop on remoTe sensing of precipiTATion AT mulTiple scAles what: 50 participants from precipitation of remote sensing of precipitation whEn: 15­17 March 2010 whErE: University of California, Irvine Overview

  4. Development of a Non-Magnetic Inertial Sensor for Vibration Stabilization in a Linear Collider

    SciTech Connect (OSTI)

    Frisch, Josef; Decker, Valentin; Doyle, Eric; Hendrickson, Linda; Himel, Thomas; Markiewicz, Thomas; Seryi, Andrei; /SLAC; Chang, Allison; Partridge, Richard; /Brown U.

    2006-09-01

    One of the options for controlling vibration of the final focus magnets in a linear collider is to use active feedback based on accelerometers. While commercial geophysics sensors have noise performance that substantially exceeds the requirements for a linear collider, they are physically large, and cannot operate in the strong magnetic field of the detector. Conventional nonmagnetic sensors have excessive noise for this application. We report on the development of a non-magnetic inertial sensor, and on a novel commercial sensor both of which have demonstrated the required noise levels for this application.

  5. Thin film hydrogen sensor

    DOE Patents [OSTI]

    Cheng, Y.T.; Poli, A.A.; Meltser, M.A.

    1999-03-23

    A thin film hydrogen sensor includes a substantially flat ceramic substrate with first and second planar sides and a first substrate end opposite a second substrate end; a thin film temperature responsive resistor on the first planar side of the substrate proximate to the first substrate end; a thin film hydrogen responsive metal resistor on the first planar side of the substrate proximate to the fist substrate end and proximate to the temperature responsive resistor; and a heater on the second planar side of the substrate proximate to the first end. 5 figs.

  6. Thin film hydrogen sensor

    DOE Patents [OSTI]

    Cheng, Yang-Tse (Rochester Hills, MI); Poli, Andrea A. (Livonia, MI); Meltser, Mark Alexander (Pittsford, NY)

    1999-01-01

    A thin film hydrogen sensor, includes: a substantially flat ceramic substrate with first and second planar sides and a first substrate end opposite a second substrate end; a thin film temperature responsive resistor on the first planar side of the substrate proximate to the first substrate end; a thin film hydrogen responsive metal resistor on the first planar side of the substrate proximate to the fist substrate end and proximate to the temperature responsive resistor; and a heater on the second planar side of the substrate proximate to the first end.

  7. Optical humidity sensor

    DOE Patents [OSTI]

    Tarvin, Jeffrey A. (Ann Arbor, MI)

    1987-01-01

    An optical dielectric humidity sensor which includes a dielectric mirror having multiple alternating layers of two porous water-adsorbent dielectric materials with differing indices of refraction carried by a translucent substrate. A narrow-band polarized light source is positioned to direct light energy onto the mirror, and detectors are positioned to receive light energy transmitted through and reflected by the mirror. A ratiometer indicates humidity in the atmosphere which surrounds the dielectric mirror as a function of a ratio of light energies incident on the detectors.

  8. Optical humidity sensor

    DOE Patents [OSTI]

    Tarvin, J.A.

    1987-02-10

    An optical dielectric humidity sensor is disclosed which includes a dielectric mirror having multiple alternating layers of two porous water-adsorbent dielectric materials with differing indices of refraction carried by a translucent substrate. A narrow-band polarized light source is positioned to direct light energy onto the mirror, and detectors are positioned to receive light energy transmitted through and reflected by the mirror. A ratiometer indicates humidity in the atmosphere which surrounds the dielectric mirror as a function of a ratio of light energies incident on the detectors. 2 figs.

  9. Solid state oxygen sensor

    DOE Patents [OSTI]

    Garzon, F.H.; Chung, B.W.; Raistrick, I.D.; Brosha, E.L.

    1996-08-06

    Solid state oxygen sensors are provided with a yttria-doped zirconia as an electrolyte and use the electrochemical oxygen pumping of the zirconia electrolyte. A linear relationship between oxygen concentration and the voltage arising at a current plateau occurs when oxygen accessing the electrolyte is limited by a diffusion barrier. A diffusion barrier is formed herein with a mixed electronic and oxygen ion-conducting membrane of lanthanum-containing perovskite or zirconia-containing fluorite. A heater may be used to maintain an adequate oxygen diffusion coefficient in the mixed conducting layer. 4 figs.

  10. Solid state oxygen sensor

    DOE Patents [OSTI]

    Garzon, Fernando H. (Sante Fe, NM); Chung, Brandon W. (Los Alamos, NM); Raistrick, Ian D. (Los Alamos, NM); Brosha, Eric L. (Los Alamos, NM)

    1996-01-01

    Solid state oxygen sensors are provided with a yttria-doped zirconia as an electrolyte and use the electrochemical oxygen pumping of the zirconia electrolyte. A linear relationship between oxygen concentration and the voltage arising at a current plateau occurs when oxygen accessing the electrolyte is limited by a diffusion barrier. A diffusion barrier is formed herein with a mixed electronic and oxygen ion-conducting membrane of lanthanum-containing perovskite or zirconia-containing fluorite. A heater may be used to maintain an adequate oxygen diffusion coefficient in the mixed conducting layer.

  11. Chemoresistive gas sensor

    DOE Patents [OSTI]

    Hirschfeld, T.B.

    1987-06-23

    A chemoresistive gas sensor is provided which has improved sensitivity. A layer of organic semiconductor is disposed between two electrodes which, in turn, are connected to a voltage source. High conductivity material is dispersed within the layer of organic semiconductor in the form of very small particles, or islands. The average interisland spacing is selected so that the predominant mode of current flow is by way of electron funneling. Adsorption of gaseous contaminant onto the layer of organic semiconductor modulates the tunneling current in a quantitative manner. 2 figs.

  12. Sensor Networks: Distributed Algorithms Reloaded or Revolutions?

    E-Print Network [OSTI]

    Sensor Networks: Distributed Algorithms Reloaded ­ or Revolutions? Roger Wattenhofer Computer. This paper wants to motivate the distributed algorithms community to study sensor networks. We discuss why community, a sensor network essentially is ­ a database. The distributed algorithms community should join

  13. Mutual information based tracking with mobile sensors

    E-Print Network [OSTI]

    Russ, John A., S.M. Massachusetts Institute of Technology

    2010-01-01

    In order to utilize mobile sensor nodes in a sensing and estimation problem, one must carefully consider the optimal placement of those sensor nodes and simultaneously account for the cost incurred in moving the sensor ...

  14. Issues in autonomous mobile sensor networks 

    E-Print Network [OSTI]

    Dharne, Avinash Gopal

    2009-05-15

    Autonomous mobile sensor networks consist of a number of autonomous mobile robots equipped with various sensors and tasked with a common mission. This thesis considers the topology control of such an ad hoc mobile sensor ...

  15. On the robustness of clustered sensor networks 

    E-Print Network [OSTI]

    Cho, Jung Jin

    2009-05-15

    or fault tolerance capability of a sensor system. The redundancy degree of sensors plays two important roles pertaining to the robustness of a sensor network. First, the redundancy degree provides proper parameter values for robust estimator; second, we can...

  16. High Accuracy Sensor Aided Inertial Navigation Systems

    E-Print Network [OSTI]

    Ramanandan, Arvind

    2011-01-01

    initialization. 3. The advent of MEMS sensors in the 1990s.MEMS based sensors have several favor- able properties. TheSystems (MEMS) based inertial sensors in the 1990s has led

  17. Use of sensors in monitoring civil structures

    E-Print Network [OSTI]

    Daher, Bassam William, 1979-

    2004-01-01

    This thesis surveys the use of sensors and sensor networks in monitoring civil structures, with particular emphasis on the monitoring of bridges and highways using fiber optic sensors. Following a brief review of the most ...

  18. Fiber optic moisture sensor

    DOE Patents [OSTI]

    Kirkham, R.R.

    1984-08-03

    A method and apparatus for sensing moisture changes by utilizing optical fiber technology. One embodiment uses a reflective target at the end of an optical fiber. The reflectance of the target varies with its moisture content and can be detected by a remote unit at the opposite end of the fiber. A second embodiment utilizes changes in light loss along the fiber length. This can be attributed to changes in reflectance of cladding material as a function of its moisture content. It can also be affected by holes or inserts interposed in the cladding material and/or fiber. Changing light levels can also be coupled from one fiber to another in an assembly of fibers as a function of varying moisture content in their overlapping lengths of cladding material.

  19. Selective chemical detection by energy modulation of sensors

    DOE Patents [OSTI]

    Stetter, J.R.; Otagawa, T.

    1985-05-20

    A portable instrument for use in the field in detecting, identifying, and quantifying a component of a sampled fluid includes a sensor which chemically reacts with the component of interest or a derivative thereof, an electrical heating filament for heating the sample before it is applied to the sensor, and modulating means for continuously varying the temperature of the filament (and hence the reaction rate) between two values sufficient to produce the chemical reaction. In response to this thermal modulation, the sensor produces a modulated output signal, the modulation of which is a function of the activation energy of the chemical reaction, which activation energy is specific to the particular component of interest and its concentration. Microprocessor means compares the modulated output signal with standard responses for a plurality of components to identify and quantify the particular component of interest. 4 figs.

  20. Inter-sensor propagation delay estimation using sources of opportunity

    E-Print Network [OSTI]

    Vincent, Rémy; Michel, Olivier; Lacoume, Jean-Louis

    2015-01-01

    Propagation delays are intensively used for Structural Health Monitoring or Sensor Network Localization. In this paper, we study the performances of acoustic propagation delay estimation between two sensors, using sources of opportunity only. Such sources are defined as being uncontrolled by the user (activation time, location, spectral content in time and space), thus preventing the direct estimation with classical active approaches, such as TDOA, RSSI and AOA. Observation models are extended from the literature to account for the spectral characteristics of the sources in this passive context and we show how time-filtered sources of opportunity impact the retrieval of the propagation delay between two sensors. A geometrical analogy is then proposed that leads to a lower bound on the variance of the propagation delay estimation that accounts for both the temporal and the spatial properties of the sources field.

  1. Needs assessment for remote systems technology at the Chornobyl Unit 4 shelter

    SciTech Connect (OSTI)

    Carteret, B.A. [Pacific Northwest National Lab., Richland, WA (United States); Holliday, M.A.; Jones, E.D. [Lawrence Livermore National Lab., CA (United States)] [and others

    1997-12-01

    The accident at Chornobyl Unit 4 on April 26, 1986, resulted in a series of unprecedented scientific and technical challenges. The reactor building was damaged extensively. Following the accident, immediate action was needed to seal off the gaping crater created by the accident, which was a continuing source of airborne contamination. Under extreme conditions, a structure called the {open_quotes}Shelter{close_quotes} was built over the remains of the reactor building. The Shelter, which was quickly completed in November 1986, was meant to provide immediate but temporary containment. Now, 11 years later, there are significant concerns about its structural integrity and projected life expectancy. The United States and other participating G-7 countries are supporting nuclear safety upgrade efforts in Eastern Europe with a primary focus on placing the Chornobyl Nuclear Power Plant (ChNPP) Unit 4 Shelter in a stable and environmentally acceptable condition. Application of remote systems technologies will play an important part in achieving the goals of this program. The G-7 nations have agreed to support these efforts, including the identification and development of remote system technologies for fuel removal. However at this time they have taken a firm stance against funding actual fuel removal activities. The U.S. Department of Energy Office of Nuclear Energy, Science and Technology requested that a needs assessment be performed to evaluate the requirements for applying remote systems, including robotics, at the Shelter. This document is intended to be used to identify remote systems needs and requirements at the Shelter and to provide general information on the conditions in the Shelter that could impact the use of remote systems. This document is intended as a source of information to assist those who will be implementing the Shelter Implementation Plan tasks. The document provides background information and general guidance on the application of remote systems.

  2. DEVELOPMENT OF SIGNAL PROCESSING TOOLS AND HARDWARE FOR PIEZOELECTRIC SENSOR DIAGNOSTIC PROCESSES

    SciTech Connect (OSTI)

    OVERLY, TIMOTHY G. [Los Alamos National Laboratory; PARK, GYUHAE [Los Alamos National Laboratory; FARRAR, CHARLES R. [Los Alamos National Laboratory

    2007-02-09

    This paper presents a piezoelectric sensor diagnostic and validation procedure that performs in -situ monitoring of the operational status of piezoelectric (PZT) sensor/actuator arrays used in structural health monitoring (SHM) applications. The validation of the proper function of a sensor/actuator array during operation, is a critical component to a complete and robust SHM system, especially with the large number of active sensors typically involved. The method of this technique used to obtain the health of the PZT transducers is to track their capacitive value, this value manifests in the imaginary part of measured electrical admittance. Degradation of the mechanical/electric properties of a PZT sensor/actuator as well as bonding defects between a PZT patch and a host structure can be identified with the proposed procedure. However, it was found that temperature variations and changes in sensor boundary conditions manifest themselves in similar ways in the measured electrical admittances. Therefore, they examined the effects of temperature variation and sensor boundary conditions on the sensor diagnostic process. The objective of this study is to quantify and classify several key characteristics of temperature change and to develop efficient signal processing techniques to account for those variations in the sensor diagnostis process. In addition, they developed hardware capable of making the necessary measurements to perform the sensor diagnostics and to make impedance-based SHM measurements. The paper concludes with experimental results to demonstrate the effectiveness of the proposed technique.

  3. System and method for cancelling the effects of stray magnetic fields from the output of a variable reluctance sensor

    DOE Patents [OSTI]

    Chen, Chingchi (Ann Arbor, MI); Degner, Michael W. (Farmington Hills, MI)

    2002-11-19

    A sensor system for sensing a rotation of a sensing wheel is disclosed. The sensor system has a sensing coil in juxtaposition with the sensing wheel. Moreover, the sensing coil has a sensing coil output signal indicative of the rotational speed of the sensing wheel. Further, a cancellation coil is located remotely from the sensing coil and connected in series therewith. Additionally, the cancellation coil has a cancellation coil output signal indicative of an environmental disturbance which is effecting the sensing coil output signal. The cancellation coil output signal operates to cancel the effects of the environmental disturbance on the sensing coil output signal.

  4. Passive blast pressure sensor

    DOE Patents [OSTI]

    King, Michael J.; Sanchez, Roberto J.; Moss, William C.

    2013-03-19

    A passive blast pressure sensor for detecting blast overpressures of at least a predetermined minimum threshold pressure. The blast pressure sensor includes a piston-cylinder arrangement with one end of the piston having a detection surface exposed to a blast event monitored medium through one end of the cylinder and the other end of the piston having a striker surface positioned to impact a contact stress sensitive film that is positioned against a strike surface of a rigid body, such as a backing plate. The contact stress sensitive film is of a type which changes color in response to at least a predetermined minimum contact stress which is defined as a product of the predetermined minimum threshold pressure and an amplification factor of the piston. In this manner, a color change in the film arising from impact of the piston accelerated by a blast event provides visual indication that a blast overpressure encountered from the blast event was not less than the predetermined minimum threshold pressure.

  5. Fiber optic temperature sensor

    SciTech Connect (OSTI)

    Rabold, D.

    1995-12-01

    Our fiber optic temperature measurement sensor and system is a major improvement over methods currently in use in most industrial processes, and it delivers all of the attributes required simplicity, accuracy, and cost efficiency-to help improve all of these processes. Because temperature is a basic physical attribute of nearly every industrial and commercial process, our system can eventually result in significant improvements in nearly every industrial and commercial process. Many finished goods, and the materials that go into them, are critically dependent on the temperature. The better the temperature measurement, the better quality the goods will be and the more economically they can be produced. The production and transmission of energy requires the monitoring of temperature in motors, circuit breakers, power generating plants, and transmission line equipment. The more reliable and robust the methods for measuring these temperature, the more available, stable, and affordable the supply of energy will become. The world is increasingly realizing the threats to health and safety of toxic or otherwise undesirable by products of the industrial economy in the environment. Cleanup of such contamination often depends on techniques that require the constant monitoring of temperature in extremely hazardous environments, which can damage most conventional temperature sensors and which are dangerous for operating personnel. Our system makes such monitoring safer and more economical.

  6. Aircraft Cabin Environmental Quality Sensors

    SciTech Connect (OSTI)

    Gundel, Lara; Kirchstetter, Thomas; Spears, Michael; Sullivan, Douglas

    2010-05-06

    The Indoor Environment Department at Lawrence Berkeley National Laboratory (LBNL) teamed with seven universities to participate in a Federal Aviation Administration (FAA) Center of Excellence (COE) for research on environmental quality in aircraft. This report describes research performed at LBNL on selecting and evaluating sensors for monitoring environmental quality in aircraft cabins, as part of Project 7 of the FAA's COE for Airliner Cabin Environmental Research (ACER)1 effort. This part of Project 7 links to the ozone, pesticide, and incident projects for data collection and monitoring and is a component of a broader research effort on sensors by ACER. Results from UCB and LBNL's concurrent research on ozone (ACER Project 1) are found in Weschler et al., 2007; Bhangar et al. 2008; Coleman et al., 2008 and Strom-Tejsen et al., 2008. LBNL's research on pesticides (ACER Project 2) in airliner cabins is described in Maddalena and McKone (2008). This report focused on the sensors needed for normal contaminants and conditions in aircraft. The results are intended to complement and coordinate with results from other ACER members who concentrated primarily on (a) sensors for chemical and biological pollutants that might be released intentionally in aircraft; (b) integration of sensor systems; and (c) optimal location of sensors within aircraft. The parameters and sensors were selected primarily to satisfy routine monitoring needs for contaminants and conditions that commonly occur in aircraft. However, such sensor systems can also be incorporated into research programs on environmental quality in aircraft cabins.

  7. Voltage sensor and dielectric material

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul; Yakymyshyn, Pamela Jane; Brubaker, Michael Allen

    2006-10-17

    A voltage sensor is described that consists of an arrangement of impedance elements. The sensor is optimized to provide an output ratio that is substantially immune to changes in voltage, temperature variations or aging. Also disclosed is a material with a large and stable dielectric constant. The dielectric constant can be tailored to vary with position or direction in the material.

  8. Wireless Sensor Networks for Healthcare

    E-Print Network [OSTI]

    Lu, Chenyang

    INVITED P A P E R Wireless Sensor Networks for Healthcare In healthcare, there is a strong need, wireless sensor networks for healthcare have emerged in the recent years. In this review, we present some representative applications in the healthcare domain and describe the challenges they introduce to wireless

  9. The Tenet Architecture for Tiered Sensor Networks

    E-Print Network [OSTI]

    2006-01-01

    a sensor network architecture: Lowering the waistline. InJ. Hill et al. System architecture directions for networkThe Tenet Architecture for Tiered Sensor Networks Omprakash

  10. Gas sensor incorporating a porous framework

    DOE Patents [OSTI]

    Yaghi, Omar M; Czaja, Alexander U; Wang, Bo; Galatsis, Kosmas; Wang, Kang L; Furukawa, Hiroyasu

    2014-05-27

    The disclosure provides sensor for gas sensing including CO.sub.2 gas sensors comprising a porous framework sensing area for binding an analyte gas.

  11. Gas sensor incorporating a porous framework

    DOE Patents [OSTI]

    Yaghi, Omar M.; Czaja, Alexander U.; Wang, Bo; Furukawa, Hiroyasu; Galatsis, Kosmas; Wang, Kang L.

    2013-07-09

    The disclosure provides sensor for gas sensing including CO.sub.2 gas sensors comprising a porous framework sensing area for binding an analyte gas.

  12. Particle Sensor for Diesel Combustion Monitoring | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sensor for Diesel Combustion Monitoring Particle Sensor for Diesel Combustion Monitoring 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: University of...

  13. New Sensor Network Technology Increases Manufacturing Efficiency...

    Office of Environmental Management (EM)

    Sensor Network Technology Increases Manufacturing Efficiency New Sensor Network Technology Increases Manufacturing Efficiency April 11, 2013 - 12:00am Addthis EERE supported Eaton...

  14. Wireless Magnetic Sensor Applications in Transportation Infrastructure

    E-Print Network [OSTI]

    Sanchez, Rene Omar

    2012-01-01

    2.2 Wireless Magnetic Sensors Vehicle Detection2.3 Vehicle Re-Identification Using Wireless MagneticPerformance iv 6 Wireless Magnetic Sensor Applications for

  15. Electrochemical NOx Sensor for Monitoring Diesel Emissions |...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sensor for Monitoring Diesel Emissions Electrochemical NOx Sensor for Monitoring Diesel Emissions Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review...

  16. Dual neutron flux/temperature measurement sensor

    DOE Patents [OSTI]

    Mihalczo, John T. (Oak Ridge, TN); Simpson, Marc L. (Knoxville, TN); McElhaney, Stephanie A. (Oak Ridge, TN)

    1994-01-01

    Simultaneous measurement of neutron flux and temperature is provided by a single sensor which includes a phosphor mixture having two principal constituents. The first constituent is a neutron sensitive 6LiF and the second is a rare-earth activated Y203 thermophosphor. The mixture is coated on the end of a fiber optic, while the opposite end of the fiber optic is coupled to a light detector. The detected light scintillations are quantified for neutron flux determination, and the decay is measured for temperature determination.

  17. IEEE SENSORS JOURNAL, VOL. 11, NO. 7, JULY 2011 1573 Energy Harvesting and Remote Powering

    E-Print Network [OSTI]

    De Micheli, Giovanni

    have increased capabilities with respect to those available in the past: for example, lithium-ion considered, since the performance of an implanted device depends on the power availability. Modern batteries batteries have reached a high level of energy density (up to 0.2 Wh/g) and are able to maintain an almost

  18. An Overview of the Use of Remote Embedded Sensors for Audio Acquisition and Processing

    E-Print Network [OSTI]

    Girod, Lewis; Roch, Marie A

    2006-01-01

    available off-the-shelf. Solar Panels. Depending on theare the most common. Solar panels are desirable because theymoving parts. However, solar panels can perform poorly for

  19. Development of a Remote Monitoring Sensor Network for In-Situ Decommissioned Structures

    Office of Energy Efficiency and Renewable Energy (EERE)

    On October 19-22, 2010, an independent expert panel of scientists and engineers met to assist the Department of Energy (DOE) and the Savannah River National Laboratory in developing a technical...

  20. Quantifying the Aerosol Indirect Effect Using Ground-Based Remote Sensors and Models

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgramExemptionsProteinTotalSciTech Connect Conference: Quanta to