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Title: Fiber Grating Environmental 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:
 [1];  [1]
  1. Fairview, OR
Issue Date:
OSTI Identifier:
880314
Patent Number(s):
6600149
Application Number:
10/746037
Assignee:
Schulz, Whitten L. (Fairview, OR); Udd, Eric (Fairview, OR)
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
Country of Publication:
United States
Language:
English

Citation Formats

Schulz, Whitten L, and Udd, Eric. Fiber Grating Environmental Sensing System. United States: N. p., 2003. Web.
Schulz, Whitten L, & Udd, Eric. Fiber Grating Environmental Sensing System. United States.
Schulz, Whitten L, and Udd, Eric. Tue . "Fiber Grating Environmental Sensing System". United States. https://www.osti.gov/servlets/purl/880314.
@article{osti_880314,
title = {Fiber Grating Environmental Sensing System},
author = {Schulz, Whitten L 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 = {2003},
month = {7}
}

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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

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