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

Donal A. Flavin; Roy McBride; Julian D. C. Jones

doi:10.1117/12.185037

14 September 1994 Temperature-insensitive interferometric measurement of strain using grating-coupled LED sources

Donal A. Flavin, Roy McBride, Julian D. C. Jones

Proceedings Volume 2360, Tenth International Conference on Optical Fibre Sensors; (1994) https://doi.org/10.1117/12.185037
Event: 10th Optical Fibre Sensors Conference, 1994, Glasgow, United Kingdom

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.

Citation Download Citation

Donal A. Flavin, Roy McBride, and Julian D. C. Jones "Temperature-insensitive interferometric measurement of strain using grating-coupled LED sources", Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); https://doi.org/10.1117/12.185037

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