Novel fiber-optic distributed strain and temperature sensor with very high resolution

被引：20
|
作者：
Koyamada, Yahei [1 ]
Eda, Yousuke [1 ]
Hirose, Souichi [1 ]
Nakamura, Shinki [1 ]
Hogari, Kazuo [1 ]
机构：
[1] Univ Ibadan, Dept Media & Telecommun Engn, Hitachi, Ibaraki 3168511, Japan
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2006年 / E89B卷 / 05期
关键词：
fiber-optic sensor; distributed sensor strain sensor; temperature sensor; OTDR;
D O I：
10.1093/ietcom/e89-b.5.1722
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel technique is proposed for measuring the distributed strain and temperature in a fiber with a very high resolution. This technique makes use of the jagged appearance of Rayleigh backscatter traces from a single-mode fiber measured by using a coherent OTDR with a precisely frequency-controlled light source. Our preliminary experiment indicated the possibility of measuring temperature with a resolution of better than 0.01 degrees C and a spatial resolution of one meter. This temperature resolution is two orders of magnitude better than that provided by Brillouin-based distributed sensors.
引用
收藏
页码：1722 / 1725
页数：4
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