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Proceedings Paper

Fiber optic technique for simultaneous measurement of strain and temperature variations in composite materials
Author(s): W. Craig Michie; Brian Culshaw; Scott S. J. Roberts; Roger Davidson
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Paper Abstract

A technique based upon the differential sensitivities of dual mode and polarimetric sensing schemes is shown to be capable of resolving simultaneously temperature and strain variations to within 20 micro-epsilon and 1 K over a strain and temperature excursion of 2 micro-epsilon and 45 K. The technique is evaluated experimentally over an 80 cm sensing length of unembedded optical fiber and in an 8 ply unidirectional carbon/epoxide laminate subject to temperature and strain cycling. A comparative analysis of the performance of the embedded and the unembedded fiber sensors is presented.

Paper Details

Date Published: 1 December 1991
PDF: 14 pages
Proc. SPIE 1588, Fiber Optic Smart Structures and Skins IV, (1 December 1991); doi: 10.1117/12.50194
Show Author Affiliations
W. Craig Michie, Univ. of Strathclyde (United Kingdom)
Brian Culshaw, Univ. of Strathclyde (United Kingdom)
Scott S. J. Roberts, AEA Industrial Technology (United Kingdom)
Roger Davidson, AEA Industrial Technology (United Kingdom)

Published in SPIE Proceedings Vol. 1588:
Fiber Optic Smart Structures and Skins IV

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