14 September 1994 Temperature-insensitive interferometric measurement of strain using grating-coupled LED sources
Author Affiliations +
Proceedings Volume 2360, Tenth International Conference on Optical Fibre Sensors; (1994); doi: 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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Donal A. Flavin, Roy McBride, 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); doi: 10.1117/12.185037; https://doi.org/10.1117/12.185037
PROCEEDINGS
4 PAGES


SHARE
KEYWORDS
Light emitting diodes

Temperature metrology

Fourier transforms

Diffraction gratings

Interferometers

Fourier spectroscopy

Interferometry

Back to Top