Spatially-multiplexed fibre-optic Bragg grating strain and temperature sensor system based on interferometric wavelength-shift detection


A prototype fibre-optic system using interferometric wavelength-shift detection, capable of multiplexing up to 32 fibre-optic Bragg grating strain and temperature sensors with identical characteristics, has been demonstrated. This system is based on a spatially multiplexed scheme for use with fibre-based low-coherence interferometric sensors, reported previously. Four fibre-optic Bragg grating channels using the same fibre grating have been demonstrated for measuring quasi-static strain and temperature.

Uncontrolled Keywords: diffraction gratings, fibre optic sensors, light interferometers, multiplexing, strain measurement, strain sensors, temperature sensors, fibre grating, fibre-based low-coherence interferometric sensors, fibre-optic Bragg grating channels, fibre-optic system, interferometric wavelength-shift detection, quasi-static strain, spatially multiplexed scheme, spatially-multiplexed fibre-optic Bragg grating sensor
Publication ISSN: 0013-5194
Last Modified: 23 Oct 2019 10:35
Date Deposited: 13 Dec 2010 13:48
Published Date: 1995-06-08
Authors: Rao, Yun-Jiang
Kalli, Kyriacos
Brady, G.P.
Webb, David J.
Jackson, David A.
Zhang, Lin
Bennion, Ian


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