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

被引：15
|
作者：
Bao, X [1 ]
Webb, DJ [1 ]
Jackson, DA [1 ]
机构：
[1] UNIV KENT,PHYS LAB,APPL OPT GRP,CANTERBURY CT2 7NR,KENT,ENGLAND
来源：
CANADIAN JOURNAL OF PHYSICS | 1996年 / 74卷 / 1-2期
关键词：
D O I：
10.1139/p96-001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 degrees C.
引用
收藏
页码：1 / 3
页数：3
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