Distributed temperature sensing in solid-core fibres

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© The Institution of Electrical Engineers
Published 21/07/2012

Abstract

A distributed temperature sensor using the Raman line of backscattered light in solid-core optical fibres is reported. A device having a resolution of 1 K over 1 km of fibre and with a spatial resolution of 7.5 m was constructed using a semiconductor source and detector.

Inspec keywords: time-domain reflectometry; spectral methods of temperature measurement; fibre optic sensors

Other keywords: semiconductor detector; optical fibres; distributed temperature sensor; Raman line; spatial resolution; backscattered light; time-domain reflectometry; semiconductor source; solid-core optical fibres

Subjects: Thermal variables measurement; Fibre optic sensors; Fibre optics; Thermometry; Fibre optics and fibre waveguides; Optical refractometry and reflectometry

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