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.
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
关键词
光纤传感
布里渊散射
温度测量
应变测量
optical fiber sensor
Brillouin scattering
temperature measurement
strain measurement
