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

Yun-Jiang Rao, Kyriacos Kalli, G.P. Brady, David J. Webb, David A. Jackson, Lin Zhang, Ian Bennion

Research output: Contribution to journalArticle

Abstract

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.
Original languageEnglish
Pages (from-to)1009-1010
Number of pages2
JournalElectronics letters
Volume31
Issue number12
DOIs
Publication statusPublished - 8 Jun 1995

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

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