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

doi:10.1364/OL.21.000683

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

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	683-685
Number of pages	3
Journal	Optics Letters
Volume	21
Issue number	9
DOIs	https://doi.org/10.1364/OL.21.000683
Publication status	Published - 1 May 1996

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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. {\textcopyright} 1996 Optical Society of America.",

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AU - Zhang, L.

AU - Bennion, I.

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Y1 - 1996/5/1

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AB - 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.

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

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