A fire detection system using optical fibres for utility tunnels

被引：35
|
作者：
Ishii, H [1 ]
Kawamura, K [1 ]
Ono, T [1 ]
Megumi, H [1 ]
Kikkawa, A [1 ]
机构：
[1] YAMATO PROTEC CORP,MINATO KU,TOKYO 108,JAPAN
来源：
FIRE SAFETY JOURNAL | 1997年 / 29卷 / 2-3期
关键词：
D O I：
10.1016/S0379-7112(96)00065-3
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper we examine a fire detection system for utility tunnels on the basis of the fact that temperature distribution along an optical fibre can be determined through measurement of the Raman back scattering of the Stokes and anti-Stokes lines. This system can measure temperature distribution by scanning, with an accuracy of 5 degrees C and 5 m, an optical fibre 2 km long in 30s. We discuss how to locate the fire source and calculate its thermal energy from the temperature distribution data obtained, and consider whether the system can be applied to fire detection in utility tunnels. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：87 / 98
页数：12
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