Study on temperature and stress distinguish based on distributed optical fiber sensor

LEI Yang; PAN Wei; YAN Lian-shan; LUO Bin; ZHANG Zhi-yong; REN Zhong-yao

doi:10.13873/j.1000-97872010.05.015

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Study on temperature and stress distinguish based on distributed optical fiber sensor

更新时间：2025-09-11

- Study on temperature and stress distinguish based on distributed optical fiber sensor
- Vol. 29, Issue 5, Pages: 25-27+30(2010)
- 作者机构：
  
  西南交通大学信息科学与技术学院信息光子与通信研究中心
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872010.05.015
  CLC： TP212.14
- Published：2010
- 稿件说明：
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[1]雷杨,潘炜,闫连山,罗斌,张志勇,任中耀.分布式光纤传感器温度与应变区分的研究[J].传感器与微系统,2010,29(05):25-27+30.

LEI Yang, PAN Wei, YAN Lian-shan, et al. Study on temperature and stress distinguish based on distributed optical fiber sensor[J]. 2010, 29(5): 25-27+30.
[1]雷杨,潘炜,闫连山,罗斌,张志勇,任中耀.分布式光纤传感器温度与应变区分的研究[J].传感器与微系统,2010,29(05):25-27+30. DOI： 10.13873/j.1000-97872010.05.015.

LEI Yang, PAN Wei, YAN Lian-shan, et al. Study on temperature and stress distinguish based on distributed optical fiber sensor[J]. 2010, 29(5): 25-27+30. DOI： 10.13873/j.1000-97872010.05.015.

摘要

针对分布式光纤传感器系统中温度和应变同时存在的问题

给出了一种联合受激布里渊散射（SBS）和后向瑞利散射来解决此类交叉问题的方法。根据光纤中SBS

后向瑞利散射与施加在光纤上的温度和应变的相关特性

分析了温度和应变对SBS

瑞利散射的影响。数值求解出在泵浦光入射端接收到的SBS信号光功率和后向瑞利散射光功率。由应变补偿并解调SBS信号光功率获得温度信息

并分析了应变对温度精度和空间分辨率的影响。

Abstract

Aimed to the problems of temperature and strain coexisting in the distributed optical fiber sensor system

an effective technique for jointing stimulated Brillouin scattering（SBS）and backward Rayleigh scattering（BRS）is proposed.Based on the related characteristics of the temperature and strain of the SBS optical power as well as the BRS optical power operated on the fiber

the effects of temperature and strain on SBS and BRS are analyzed.SBS signal optical power and the BRS signal power received on the laser for pumping light are obtained by numerical solving.The temperature information is obtained by demodulating SBS signal and strain compensation.The effects of strain on temperature precision and spatial resolution is analyzed.

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references

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基于微波电光调制的布里渊光时域分析传感器 [J]. 宋牟平,赵斌,章献民. 光学学报 . 2005(08)

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