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Proceedings Paper

Temperature-insensitive interferometric measurement of strain using grating-coupled LED sources
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Paper Abstract

Optical fibre interferometers have been widely used to measure strain. Most of the interferometers used are also sensitive to temperature. These two parameters can be distinguished by measuring phase for two optical modes or for two wavelengths. A linear transformation converts the two values of phase into independent values for strain and temperature [1], but this transformation is usually ill-conditioned, and so magnifies measurement errors.

Paper Details

Date Published: 14 September 1994
PDF: 4 pages
Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); doi: 10.1117/12.185037
Show Author Affiliations
Donal A. Flavin, Waterford Regional Technical College (Ireland)
Roy McBride, Heriot-Watt Univ. (United Kingdom)
Julian D. C. Jones, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2360:
Tenth International Conference on Optical Fibre Sensors
Brian Culshaw; Julian D. C. Jones, Editor(s)

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