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


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
Publication ISSN: 0008-4204
Last Modified: 23 Oct 2019 11:28
Date Deposited: 12 May 2011 11:40
Published Date: 1996-01
Authors: Bao, X.
Webb, David J.
Jackson, David A.


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