Share Email Print

Proceedings Paper

Fiber optic sensor for the simultaneous detection of strain and temperature
Author(s): Barry G. Grossman; Walid Emil Costandi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

For simple interferometric fiberoptic sensors, the effects of strain and temperature are indistinguishable. This paper addresses that problem by demonstrating a single wavelength, two-mode polarimetric fiberoptic sensor capable of simultaneously measuring temperature and strain. The sensor consists of two interferometers, a polarimetric and a two-mode, formed in a single elliptical core fiber. The interferometers respond with different sensitivities to strain and temperature like simultaneous functions of the two variables. A technique is developed by which the outputs of the interferometers are used simultaneously to measure strain and temperature with rms errors less than 30 (mu) (epsilon) and 1 degree(s)C. Finally, measurement results for a real-time system are presented.

Paper Details

Date Published: 26 March 1993
PDF: 11 pages
Proc. SPIE 1798, Fiber Optic Smart Structures and Skins V, (26 March 1993); doi: 10.1117/12.141314
Show Author Affiliations
Barry G. Grossman, Florida Institute of Technology (United States)
Walid Emil Costandi, Florida Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1798:
Fiber Optic Smart Structures and Skins V
Richard O. Claus; Robert S. Rogowski, Editor(s)

© SPIE. Terms of Use
Back to Top