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Proceedings Paper

Quasi-distributed fiber-optic sensor for simultaneous absolute measurement of strain and temperature
Author(s): L. Wosinski
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Paper Abstract

In this paper we propose a concept for a quasi-distributed fiber-optic strainand temperature sensor based on time division multiplexing (TDM) of in-line coupledFabry-Perot interferometers (FPI) with fiber Bragg gratings used as weak reflectors. A"differential" two core fiber is used for separate measurement of strain and temperatureand a dual-wavelength technique is used to perform absolute measurements over anextended dynamic range. Some advantages and limitations of this sensor system are dis- cussed. The system has been primarily designed to be embedded in composite structuresfor aerospace applications.

Paper Details

Date Published: 1 May 1992
PDF: 4 pages
Proc. SPIE 1777, First European Conference on Smart Structures and Materials, 17770C (1 May 1992); doi: 10.1117/12.2298035
Show Author Affiliations
L. Wosinski, Institute of Optical Research (Sweden)

Published in SPIE Proceedings Vol. 1777:
First European Conference on Smart Structures and Materials
Brian Culshaw; Peter T. Gardiner; Alaster McDonach, Editor(s)

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