Strain sensing of modern composite materials with a spatial/wavelength-division multiplexed fiber grating network

Y.J. Rao, D.A. Jackson, L. Zhang, I. Bennion

Research output: Contribution to journalArticle

Abstract

A spatial/wavelength-division multiplexing topology with combination of a tunable-wavelength filter and an interferometric wavelength scanner is used to interrogate a range of fiber Bragg grating (FBG) strain sensors embedded in modern composite materials. A nine-element FBG sensor system based on this topology is demonstrated for quasi-static strain sensing of a carbon fiber reinforced plastic plate for aerospace applications. Preliminary experimental results show that a strain resolution of ∼1.8μ∈ rms with an ∼30-Hz bandwidth (∼0.32μ∈/√Hz) for quasi-static strain measurement has been achieved. © 1996 Optical Society of America.

Original languageEnglish
Pages (from-to)683-685
Number of pages3
JournalOptics Letters
Volume21
Issue number9
DOIs
Publication statusPublished - 1 May 1996

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Bragg gratings
division
topology
plastic plates
gratings
carbon fiber reinforced plastics
composite materials
fibers
strain measurement
sensors
wavelength division multiplexing
wavelengths
scanners
bandwidth
filters

Cite this

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Strain sensing of modern composite materials with a spatial/wavelength-division multiplexed fiber grating network. / Rao, Y.J.; Jackson, D.A.; Zhang, L.; Bennion, I.

In: Optics Letters, Vol. 21, No. 9, 01.05.1996, p. 683-685.

Research output: Contribution to journalArticle

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