Simultaneous independent temperature and strain measurement using in-fibre Bragg grating sensors
- 1 January 1996
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 32 (12), 1133-1134
- https://doi.org/10.1049/el:19960732
Abstract
A new technique for the simultaneous, independent measurement of temperature and strain using in-fibre Bragg grating sensors is proposed and demonstrated. Two Bragg gratings with closely spaced centre wavelengths are written either side of a splice between two fibres of different diameter. The gratings show similar temperature sensitivities but different strain responses to an applied stress. Maximum errors of ±17 µɛ and ±1° are reported over 2500 µɛ and 120°C measurement ranges.Keywords
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