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Sub-metre spatial resolution temperature compensated distributed strain sensor

Sub-metre spatial resolution temperature compensated distributed strain sensor
Sub-metre spatial resolution temperature compensated distributed strain sensor
We propose and demonstrate a scheme which utilizes the temperature dependence of spontaneous Raman scattering to provide temperature compensation for a sub-metre spatial resolution Brillouin frequency based strain sensor. Temperature compensated strain sensor measurements have been demonstrated with a strain resolution of 94µ.epsilon and a spatial resolution of 10cms. This paper describes the combination of Brillouin frequency based BOCDA technique [1] with an independent measurement of temperature, based on the determination of the intensity of the anti-Stokes Raman scattering (R-OTDR) with very much higher spatial resolution than previously reported [2], in order to produce a fully temperature compensated strain sensor with high spatial resolution.
Belal, Mohammad
33550de9-0df1-4c90-bae6-3eb65c62778a
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7
Belal, Mohammad
33550de9-0df1-4c90-bae6-3eb65c62778a
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7

Belal, Mohammad and Newson, T.P. (2010) Sub-metre spatial resolution temperature compensated distributed strain sensor. Photon 10 Optics and Photonics, United Kingdom. 23 - 26 Aug 2010.

Record type: Conference or Workshop Item (Paper)

Abstract

We propose and demonstrate a scheme which utilizes the temperature dependence of spontaneous Raman scattering to provide temperature compensation for a sub-metre spatial resolution Brillouin frequency based strain sensor. Temperature compensated strain sensor measurements have been demonstrated with a strain resolution of 94µ.epsilon and a spatial resolution of 10cms. This paper describes the combination of Brillouin frequency based BOCDA technique [1] with an independent measurement of temperature, based on the determination of the intensity of the anti-Stokes Raman scattering (R-OTDR) with very much higher spatial resolution than previously reported [2], in order to produce a fully temperature compensated strain sensor with high spatial resolution.

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e-pub ahead of print date: August 2010
Venue - Dates: Photon 10 Optics and Photonics, United Kingdom, 2010-08-23 - 2010-08-26
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 340241
URI: https://eprints.soton.ac.uk/id/eprint/340241
PURE UUID: b104616c-fcd0-493a-97b7-bf42bc2c01a6
ORCID for Mohammad Belal: ORCID iD orcid.org/0000-0001-5175-3158

Catalogue record

Date deposited: 18 Jun 2012 12:59
Last modified: 06 Jun 2018 12:36

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