Simultaneous measurement of temperature and strain: cross sensitivity considerations

Farahi, F.; Webb, David J.; Jones, Julian D.C. and Jackson, David A. (1990). Simultaneous measurement of temperature and strain: cross sensitivity considerations. Journal of Lightwave Technology, 8 (2), pp. 138-142.

Abstract

Interferometric sensors using optical fibers as a transduction medium have been shown to be sensitive to a variety of physical measurands. A result of this is that the resolution of a system designed to sense strain, for example, may be compromised by fluctuations in the temperature of the environment. The possibility of simultaneously determining the strain and temperature applied to the same piece of highly birefringent fiber is discussed. Second-order effects are shown to be important for long sensing lengths or in the presence of high strains or temperature changes. The results of experiments carried out to verify the theoretical predictions are also described.

Publication DOI: https://doi.org/10.1109/50.47862
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Uncontrolled Keywords: capacitive sensors,optical fiber polarization,optical fiber sensors,optical interferometry,optical sensors,phase measurement,temperature sensors,birefringence,fibre optic sensors,light interferometers,strain measurement,temperature measurement,cross-sensitivity,highly birefringent fiber,interferometric sensors,optical fibers,second-order effects
Published Date: 1990-02

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