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

页码：1722 / 1725

页数：4

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