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Distributed optical fiber dynamic magnetic field sensor based on magnetostriction

Distributed optical fiber dynamic magnetic field sensor based on magnetostriction
Distributed optical fiber dynamic magnetic field sensor based on magnetostriction
A distributed optical fiber sensor is introduced which is capable of quantifying multiple magnetic fields along a 1 km sensing fiber with a spatial resolution of 1 m. The operation of the proposed sensor is based on measuring the magnetorestrictive induced strain of a nickel wire attached to an optical fiber. The strain coupled to the optical fiber was detected by measuring the strain-induced phase variation between the backscattered Rayleigh light from two segments of the sensing fiber. A magnetic field intensity resolution of 0.3 G over a bandwidth of 50–5000 Hz was demonstrated.
0003-6935
2833-2838
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Newson, Trevor P.
6735857e-d947-45ec-8163-54ebb25daad7
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Newson, Trevor P.
6735857e-d947-45ec-8163-54ebb25daad7

Masoudi, Ali and Newson, Trevor P. (2014) Distributed optical fiber dynamic magnetic field sensor based on magnetostriction. Applied Optics, 53 (13), 2833-2838. (doi:10.1364/AO.53.002833).

Record type: Article

Abstract

A distributed optical fiber sensor is introduced which is capable of quantifying multiple magnetic fields along a 1 km sensing fiber with a spatial resolution of 1 m. The operation of the proposed sensor is based on measuring the magnetorestrictive induced strain of a nickel wire attached to an optical fiber. The strain coupled to the optical fiber was detected by measuring the strain-induced phase variation between the backscattered Rayleigh light from two segments of the sensing fiber. A magnetic field intensity resolution of 0.3 G over a bandwidth of 50–5000 Hz was demonstrated.

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More information

Accepted/In Press date: 29 March 2014
e-pub ahead of print date: 24 April 2014
Published date: 1 May 2014
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 364485
URI: http://eprints.soton.ac.uk/id/eprint/364485
ISSN: 0003-6935
PURE UUID: da3904f3-f431-49ab-84cb-d6def5ac2ddf
ORCID for Ali Masoudi: ORCID iD orcid.org/0000-0003-0001-6080

Catalogue record

Date deposited: 30 Apr 2014 13:15
Last modified: 15 Mar 2024 03:39

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