Strain monitoring of composite-boned concrete specimen measurements by use of a FMCW multiplexed fiber Bragg grating sensor array

Peter K C Chan, Wei Jin, K. T. Lau, Li Min Zhou

Research output: Journal article publicationConference articleAcademic researchpeer-review

11 Citations (Scopus)


We report the use of fiber Bragg grating (FBG) sensors for strain measurement in a rectangular composite-bonded concrete beam. Three FBG sensors are multiplexed by using a frequency-modulated continuous wave (FMCW) technique and embedded at three different locations at the interface between the composite reinforcement and surfaces of the concrete beam specimen. Strain measurements were conducted with the concrete beam specimen subjected to a three-point bending test. The strains measured from the FBG sensors are compared with that from the external bonded electrical strain gauges.
Original languageEnglish
Pages (from-to)56-59
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Jan 2000
EventInternational Conference on Sensors and Control Techniques (ICSC 2000) - Wuhan, China
Duration: 19 Jun 200021 Jun 2000

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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