Distributed temperature sensor based on Brillouin loss in an optical fibre for transient threshold monitoring

Bao, X., Webb, David J. and Jackson, David A. (1996). Distributed temperature sensor based on Brillouin loss in an optical fibre for transient threshold monitoring. Canadian journal of physics, 74 (1-2), pp. 1-3.

Abstract

A distributed temperature sensor for transient threshold monitoring with a 22 km sensing length, based on the Brillouin loss in standard communications fibre, is demonstrated. The system can be used for real-time monitoring of a preset temperature threshold. Good S/N ratios were achieved with only 8–16 sample averages giving a response time of 2 to 4 s with a temperature uncertainty of ±1 °C.

Uncontrolled Keywords: distributed temperature sensor, transient threshold monitoring, 22 km sensing length, Brillouin loss, standard communications fibre, real-time monitoring, preset temperature threshold
Published Date: 1996-01

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