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


Health monitoring of an Oregon historical bridge with fiber grating strain sensors
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High speed demodulation systems for fiber optic grating sensors
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patent, September 2004


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


Fiber grating environmental sensing system
patent, July 2003


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