Fiber-optic distributed temperature sensor using incoherent optical frequency domain reflectometry

被引:13
|
作者
Karamehmedovic, E [1 ]
Glombitza, U [1 ]
机构
[1] DTU, Res Ctr COM, DK-2800 Lyngby, Denmark
来源
关键词
fiber-sensor; frequency domain reflectometry; Raman temperature sensor;
D O I
10.1117/12.528794
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
Distributed temperature sensor based on Raman scattering is investigated. The ratio of intensities in Stokes and anti-Stokes bands reveals the temperature of a fiber section. A spatial resolution of around 1m is obtained by use of Incoherent Optical Frequency Domain Reflectometry. An accuracy of +/-2K is demonstrated over a 16km single-mode fiber, which represents a new record. A brief discussion on the choice of the sensing fiber is also given.
引用
收藏
页码:107 / 115
页数:9
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