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Proceedings Paper

Optical fiber static strain sensors: reliability issues
Author(s): Indu Saxena; Kaleonui Hui
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Paper Abstract

There is much interest in using optical fiber sensors for strain measurement because they are lightweight and are insensitive to electromagnetic interference. Structural monitoring applications can employ fiber Bragg gratings (FBGs) for point-by-point measurements, whereas continuous sensors, based on Brillouin scattering, can be used to measure strain along entire lengths of un-modified optical fibers. These two strain measurement methodologies, and their practical limitations, are compared. Accurate and reliable static strain measurement with FBGs, a turnkey instrumentation with multichannel detection ability, and embedding techniques with repeatable calibration ability are reported. Embedding techniques that survive high temperature cycling, and high humidity under salt water environments, have been developed.

Paper Details

Date Published: 12 October 2007
PDF: 12 pages
Proc. SPIE 6770, Fiber Optic Sensors and Applications V, 67700C (12 October 2007); doi: 10.1117/12.753523
Show Author Affiliations
Indu Saxena, Intelligent Optical Systems, Inc. (United States)
Kaleonui Hui, Intelligent Optical Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 6770:
Fiber Optic Sensors and Applications V
Eric Udd, Editor(s)

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