Simultaneous Measurement of Strain and Temperature using Type I and Pre-strained Fiber Bragg Gratings

Aashia, Rahman and Asokan, Sundarrajan (2009) Simultaneous Measurement of Strain and Temperature using Type I and Pre-strained Fiber Bragg Gratings. In: 8th IEEE Conference on Senshttp://eprints.iisc.ernet.in/cgi/users/home?screen=EPrint::Edit&eprintid=31227&stage=core#tors, OCT 25-28, 2009, Christchurch, pp. 1171-1173.

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Abstract

Strain and temperature sensitivities of a type I Bragg grating inscribed in a germania doped silica fiber, fabricated under normal conditions and zero strain, are compared with that of a Bragg grating inscribed under pre-strained condition. The results obtained reveal that the strain and temperature sensitivities of the two gratings are different. Based on these results, we demonstrate a technique which enables discrimination of strain and temperature in a Fiber Bragg Grating (FBG) with a linear response. The present technique allows for an easy implementation of the sensor by providing a direct access to the grating region in the fiber and demands only a simple interrogation system.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	09 Aug 2010 09:56
Last Modified:	19 Sep 2010 06:13
URI:	http://eprints.iisc.ac.in/id/eprint/31227

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