摘 要：单模光纤主要包括布里渊散射光与入射光两种，其中布里渊散射光的频移量较大，受所处环境的温度影响较大。根据这种线性温度敏感的特性，布里渊光时域反射计应运而生，它能够对线路中的光缆温度状况进行实时监测。本文通过具体的实验研究得出，该系统能够准确体现出线路光缆纤芯温度的变化情况，可用于输电线路的温度安全监测。
关键词：光纤传感；布里渊散射；温度监测
作者介绍：
俞佳捷（1986.07-），男，汉族，浙江宁波人，毕业于大连海事大学，研究生，中级工程师。研究方向：电力通信。
中图分类号：TM75 文献标识码：A 文章编号：2096-4706（2018）02-0000-03
Researchon On-line Temperature Monitoring of Transmission Line Based on BOTDR Optical FiberSensing Technology
YUJiajie，YU Yan，WU Zhongping
（State Grid Zhejiang Electric Power Corporation Ningbo Power Supply Company，Ningbo 315010，China）
Abstract：Singlemode fiber mainly includes brillouin scattering light and incident light，and brillouin scattering light has a large frequency shift，which is affected by the temperature of the environment. Accordingto this linear temperature sensitive characteristic，brillouinoptical time domain reflectometer was born，which can beused to monitor the temperature of fiber optic cables in real time. Throughspecific experimental research，the system canaccurately reflect the temperature change of the fiber core of the line and canbe used to monitor the temperature of the transmission line.
Keywords：fiberoptics；Brillouin scattering；temperature detection
参考文献：
[1] 陈雨佳.光纤传输技术的应用与开发 [J/OL].现代信息科技[2018-03-23].http：//kns.cnki.net/kcms/detail/44.1736.TN.20180211.1704.044.html.
[2] 徐晓峰.探讨通信传输线路的施工质量与设计 [J/OL].现代信息科技[2018-03-23].http：//kns.cnki.net/kcms/detail/44.1736.TN.20180212.1021.078.html.