skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fiber grating moisture and chemical sensing system

Abstract

Fiber grating environmental measurement systems are comprised of sensors that are configured to respond to changes in moisture or chemical content of the surrounding medium through the action of coatings and plates inducing strain that is measured. These sensors can also be used to monitor the interior of bonds for degradation due to aging, cracking, or chemical attack. Means to multiplex these sensors at high speed and with high sensitivity can be accomplished by using spectral filters placed to correspond to each fiber grating environmental sensor. By forming networks of spectral elements and using wavelength division multiplexing arrays of fiber grating sensors may be processed in a single fiber line allowing distributed high sensitivity, high bandwidth fiber optic grating environmental sensor systems to be realized.

Inventors:
;
Issue Date:
Research Org.:
US Department of Energy (USDOE), Washington DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531468
Patent Number(s):
6683297
Application Number:
10/457,845
Assignee:
Schulz, Whitten Lee, Fairview, OR (United States)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
FG03-99ER82753
Resource Type:
Patent
Resource Relation:
Patent File Date: 2003-06-10
Country of Publication:
United States
Language:
English

Citation Formats

Schulz, Whitten Lee, and Udd, Eric. Fiber grating moisture and chemical sensing system. United States: N. p., 2004. Web.
Schulz, Whitten Lee, & Udd, Eric. Fiber grating moisture and chemical sensing system. United States.
Schulz, Whitten Lee, and Udd, Eric. Tue . "Fiber grating moisture and chemical sensing system". United States. https://www.osti.gov/servlets/purl/1531468.
@article{osti_1531468,
title = {Fiber grating moisture and chemical sensing system},
author = {Schulz, Whitten Lee and Udd, Eric},
abstractNote = {Fiber grating environmental measurement systems are comprised of sensors that are configured to respond to changes in moisture or chemical content of the surrounding medium through the action of coatings and plates inducing strain that is measured. These sensors can also be used to monitor the interior of bonds for degradation due to aging, cracking, or chemical attack. Means to multiplex these sensors at high speed and with high sensitivity can be accomplished by using spectral filters placed to correspond to each fiber grating environmental sensor. By forming networks of spectral elements and using wavelength division multiplexing arrays of fiber grating sensors may be processed in a single fiber line allowing distributed high sensitivity, high bandwidth fiber optic grating environmental sensor systems to be realized.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {1}
}

Patent:

Save / Share:

Works referenced in this record:

Health monitoring of an adhesive joint using a multiaxis fiber grating strain sensor system
conference, January 1999

  • Schulz, Whitten L.; Udd, Eric; Morrell, Mike
  • Nondestructive Evaluation Techniques for Aging Infrastructures & Manufacturing, SPIE Proceedings
  • https://doi.org/10.1117/12.339906

Advanced fiber-grating strain sensor systems for bridges, structures, and highways
conference, June 1998

  • Schulz, Whitten L.; Udd, Eric; Seim, John M.
  • 5th Annual International Symposium on Smart Structures and Materials, SPIE Proceedings
  • https://doi.org/10.1117/12.310610

Apparatus for detecting aqueous environments
patent, April 1998


Progress on monitoring of adhesive joints using multiaxis fiber grating sensors
conference, June 2000

  • Schulz, Whitten L.; Udd, Eric; Seim, John M.
  • SPIE's 7th Annual International Symposium on Smart Structures and Materials, SPIE Proceedings
  • https://doi.org/10.1117/12.388187

Precision deformation mechanism and method
patent, June 1998


    Works referencing / citing this record:

    Method of dewatering in a continuous high internal phase emulsion foam forming process
    patent, November 2016


    Method of dewatering in a continuous high internal phase emulsion foam forming process
    patent, November 2017


    Fiber grating environmental sensing system
    patent, May 2006


    Generator protection system
    patent, January 2012


    Fluid detection with a spectrometer-on-a-chip
    patent, October 2013


    Generator protection system
    patent, March 2012