光纤布里渊传感器在电力系统光缆监测中的应用探讨  

Study of the application of optical cable monitoring in electric power system based on optical fiber Brillouin sensor

作　　者：李卓明[1] 李永倩[1] 赵丽娟[1] 何玉钧[1] 

机构地区：[1]华北电力大学电子与通信工程学院,河北保定071003

出　　处：《电力系统通信》2006年第3期37-41,共5页Telecommunications for Electric Power System

基　　金：华北电力大学留学回国人员科研基金编号:20041401

摘　　要：分析了温度和应力给电力系统光缆带来的故障隐患,给出了利用光纤布里渊散射进行温度和应变分布同时测量的原理,并对光纤布里渊传感器的几种主要方案进行了分析比较。针对电力系统光纤通信网的特点及现有光缆监测手段,提出了利用光纤布里渊分布式传感器进行光缆断点、温度和应力同时监测的传感方案,探讨了其在电力系统光纤传输网在线监测中的应用方法及应用前景。Hidden trouble of optical cables in electric power system caused by anomalous changing of temperature and strain has been investigated, and the principle of measuring the distributed temperature and strain simultaneously by using Brillouin scattering in an optical fiber has been introduced. According to the characters of optical fiber communication network in electric power system, a sensing system which can measure fiber loss, broken point, temperature and strain simultaneously has been proposed based on the studies of several main schemes of Brillouin-based distributed optical fiber sensor. The proposed sensing system shows great prospect for applications in the on-line monitoring of optical fiber communication network in electric Dower system.

关 键 词：光纤传感 布里渊散射 温度测量 应变测量 

分 类 号：TN818[电子电信—信息与通信工程] TN256