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Title: Fiber grating bond joint health monitoring 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:
;
Publication Date:
Research Org.:
US Department of Energy (USDOE), Washington DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531477
Patent Number(s):
6,756,580
Application Number:
10/458,109
Assignee:
Schulz, Whitten Lee, Fairview, OR (United States)
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 bond joint health monitoring system. United States: N. p., 2004. Web.
Schulz, Whitten Lee, & Udd, Eric. Fiber grating bond joint health monitoring system. United States.
Schulz, Whitten Lee, and Udd, Eric. 2004. "Fiber grating bond joint health monitoring system". United States. https://www.osti.gov/servlets/purl/1531477.
@article{osti_1531477,
title = {Fiber grating bond joint health monitoring 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 = {},
url = {https://www.osti.gov/biblio/1531477}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {6}
}

Works referenced in this record:

Bonded joint analysis
patent, November 1998


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

Works referencing / citing this record: