Fiber grating environmental sensing system

Udd, Eric; Calvert, Sean G.; Schulz, Whitten L.; Kunzler, W. Marley; Kunzler, M. Wesley

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Title: Fiber grating environmental sensing system

Abstract

A fiber grating environmental sensing system is described that has the ability to measure strain, vibration, humidity and water content. Fiber gratings are used to measure axial strain to accomplish these goals. An approach is described that uses matched fiber grating sensors and filters to allow for thermal compensation greatly reducing one of the key performance issues facing these systems. The system may be deployed in such applications as roadways and paved surfaces, bridges, buildings and aircraft and spacecraft. Means are described to implement transducers optimized for specific environmental measurements as well as means to demodulate the fiber grating sensors.

Inventors:: Udd, Eric; Calvert, Sean G.; Schulz, Whitten L.; Kunzler, W. Marley; Kunzler, M. Wesley

Issue Date:: 2006-05-02

Research Org.:: Blue Road Research, Fairview, OR (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531509

Patent Number(s):: 7038190

Application Number:: 10/325,874

Assignee:: Udd, Eric, Fairview, OR (United States)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01D - MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE

G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE

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G - PHYSICS G01 - MEASURING G01D - MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
G01D5/35383 - {using multiple sensor devices using multiplexing techniques}

G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G01L1/246 - {using integrated gratings, e.g. Bragg gratings}

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DOE Contract Number:: FG03-99ER82753

Resource Type:: Patent

Resource Relation:: Patent File Date: 2002-12-20

Country of Publication:: United States

Language:: English

Citation Formats


                    Udd, Eric, Calvert, Sean G., Schulz, Whitten L., Kunzler, W. Marley, and Kunzler, M. Wesley. Fiber grating environmental sensing system.  United States: N. p., 2006. 
        Web.

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                    Udd, Eric, Calvert, Sean G., Schulz, Whitten L., Kunzler, W. Marley, & Kunzler, M. Wesley. Fiber grating environmental sensing system.  United States.

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                    Udd, Eric, Calvert, Sean G., Schulz, Whitten L., Kunzler, W. Marley, and Kunzler, M. Wesley. Tue .  
        "Fiber grating environmental sensing system".  United States.  https://www.osti.gov/servlets/purl/1531509.

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@article{osti_1531509,

  title        = {Fiber grating environmental sensing system},

  author       = {Udd, Eric and Calvert, Sean G. and Schulz, Whitten L. and Kunzler, W. Marley and Kunzler, M. Wesley},

  abstractNote = {A fiber grating environmental sensing system is described that has the ability to measure strain, vibration, humidity and water content. Fiber gratings are used to measure axial strain to accomplish these goals. An approach is described that uses matched fiber grating sensors and filters to allow for thermal compensation greatly reducing one of the key performance issues facing these systems. The system may be deployed in such applications as roadways and paved surfaces, bridges, buildings and aircraft and spacecraft. Means are described to implement transducers optimized for specific environmental measurements as well as means to demodulate the fiber grating sensors.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2006},

  month        = {5}

}

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Works referenced in this record:

Traffic monitoring/control and road condition monitoring using fiber optic-based systems
conference, May 1999

Schulz, Whitten L.; Seim, John M.; Udd, Eric
1999 Symposium on Smart Structures and Materials, SPIE Proceedings
https://doi.org/10.1117/12.348660

Health monitoring of an Oregon historical bridge with fiber grating strain sensors
conference, May 1999

Seim, John M.; Udd, Eric; Schulz, Whitten L.
1999 Symposium on Smart Structures and Materials, SPIE Proceedings
https://doi.org/10.1117/12.348662

High speed demodulation systems for fiber optic grating sensors
patent, January 2002

Udd, Eric; Weisshaar, Andreas
US Patent Document 6,335,524
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6335524

Fiber grating bond joint health monitoring system
patent, June 2004

Schulz, Whitten; Udd, Eric
US Patent Document 6,756,580
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6756580

Sensor systems employing optical fiber gratings
patent, March 1995

Udd, Eric; Clark, Timothy E.
US Patent Document 5,397,891
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5397891

Fiber with multiple overlapping gratings
patent, May 1997

Udd, Eric
US Patent Document 5,627,927
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5627927

Strain isolated optical fibre bragg grating sensor
patent, September 2000

Haran, Francis Martin; Foote, Peter David
US Patent Document 6,125,216
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6125216

Fiber grating moisture and chemical sensing system
patent, January 2004

Schulz, Whitten; Udd, Eric
US Patent Document 6,683,297
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6683297

Multiplexable fiber-optic strain sensor system with temperature compensation capability
patent, September 2004

Moslehi, Behzad; Black, Richard James; Shaw, Herbert J.
US Patent Document 6,788,835
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6788835

Fiber optic grating sensor systems for sensing environmental effects
patent, January 1995

Udd, Eric; Clark, Timothy E.
US Patent Document 5,380,995
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5380995