A fibre-optic low-coherence quasi-distributed strain sensing system with multi-configurations

被引：3
|
作者：
Yuan, Libo [1 ]
Yang, Jun [1 ]
机构：
[1] Harbin Engn Univ, Coll Sci, Dept Phys, Harbin 150001, Peoples R China
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2007年 / 18卷 / 09期
关键词：
fibre optic sensor; multiplexed sensor array; low-coherence interferometer; strain sensor;
D O I：
10.1088/0957-0233/18/9/024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Michelson- based fibre optic low- coherence interferometric quasi- distributed sensing system is proposed, permitting absolute length measurement in the sensor array. The main part of the sensing system is a fibre optic 3 x 3 star coupler. The architecture of the fibre optic sensor can easily be realized as a linear sensor array, twin sensor arrays or a loop sensor array. The proposed sensing scheme will be useful for the measurement of strain distribution. An important application could be deformation sensing in smart structures. Experimentally, a six- sensor array has been demonstrated.
引用
收藏
页码：2931 / 2937
页数：7
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