22 KM DISTRIBUTED STRAIN SENSOR USING BRILLOUIN LOSS IN AN OPTICAL-FIBER

被引：7

作者：

BAO, X

WEBB, DJ

JACKSON, DA

机构：

[1] Applied Optics Group, Physics Laboratory, The University, Canterbury

来源：

OPTICS COMMUNICATIONS | 1994年 / 104卷 / 4-6期

关键词：

D O I：

10.1016/0030-4018(94)90559-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel distributed strain sensor is presented utilizing the strain dependence of the frequency at which the Brillouin loss is maximized in the interaction between a cw laser and a pulsed laser. A strain resolution of 20 mu epsilon with a spatial resolution of 5 m has been achieved with a 22 km sensing length.

引用

页码：298 / 302

页数：5