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Proceedings Paper

Fiber optic sensor for simultaneous measurement of strain and temperature
Author(s): Ashish M. Vengsarkar; W. Craig Michie; Lilja Jankovic; Brian Culshaw; Richard O. Claus
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Paper Abstract

The paper proposes polarimetric and two-mode differential interferometric schemes incorporated in an elliptical-core fiber to resolve strain and temperature simultaneously. Initial results indicate accuracies of +/- 10 microns/m and +/- 5 C for strain and temperature measurements, respectively. A technique, based on the evaluation of the condition number of a matrix, is shown to be useful in evaluating comparative merits of multiparameter sensing schemes. Experimental results for four fibers are presented, and cross-sensitivity issues are discussed.

Paper Details

Date Published: 1 February 1991
PDF: 12 pages
Proc. SPIE 1367, Fiber Optic and Laser Sensors VIII, (1 February 1991); doi: 10.1117/12.24753
Show Author Affiliations
Ashish M. Vengsarkar, Virginia Polytechnic Institute and State Univ. (United States)
W. Craig Michie, Univ. of Strathclyde (United Kingdom)
Lilja Jankovic, Univ. of Belgrade (United States)
Brian Culshaw, Strathclyde Univ. (United Kingdom)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)

Published in SPIE Proceedings Vol. 1367:
Fiber Optic and Laser Sensors VIII
Ramon P. DePaula; Eric Udd, Editor(s)

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