Distributed Raman temperature measurement system based on multi-mode fiber

被引：0

作者：

Zhu, Hai-Peng ^{[1
]}

Jin, Zhong-Xie ^{[1
]}

机构：

[1] Key Laboratory for Optoelectronic Technology & System, Chongqing University, Chongqing

来源：

Guangzi Xuebao/Acta Photonica Sinica | 2015年 / 44卷 / 01期

关键词：

Distributed temperature measurement; Dynamic calibration; Raman scattering; Spatial resolution; Temperature resolution;

D O I：

10.3788/gzxb20154401.0106002

中图分类号：

学科分类号：

摘要：

Through the analysis of the intensity ratio of anti-stokes and stokes light of the backscattering light, a multimode optical fiber Raman temperature sensing system had been developed based on Raman scattering and optical time domain reflection principle. Using a new type of dynamic temperature calibration program for fitting low and high temperature zone respectively, which improved the measuring-temperature accuracy up to ±1 ℃. This paper respectively conducted the system temperature resolution, temperature measurement precision, spatial resolution and repeatability experimental verification. The experimental results show that the temperature resolution of 1 ℃, the spatial resolution of 1m, the system stability is good and can adapt to the complex environmental change. ©, 2015, Chinese Optical Society. All right reserved.

引用

页数：5

共 13 条

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