现代电子技术Issue(12)：153-155,159,4.
分布式光纤测温系统在电缆温度监测中应用
Application of distributed fiber temperature detecting system in temperature monitoring of cable
摘要
Abstract
In view of the present fire detection problems for power cable safety,a distributed fiber temperature detecting system is proposed in this paper. The optical time domain reflection technology and Raman scattering technique are adopted in the system,which is composed of temperature detection host computer,temperature detection cable and CSM host,and has high sensitivity and positioning accuracy. The surface temperature of power cable is got by the fiber cable,passed to the temper-ature detecting host computer for data analysis,and displayed the power cable temperature status and alarm on the CSM host. In order to verify the effectiveness of the distributed fiber temperature detecting system,a temperature detecting experiment was car-ried out in a domestic tunnel. The experimental results proved that the system can accurately response the real-time status of field running power cable,timely find and position the temperature abnormal points;when the cable surface temperature ex-ceeds the preset warning temperature value,the system outputs an alarm signal immediately to avoid the accident of the power line.关键词
拉曼散射/OTDR/电力电缆/分布式光纤测温系统/在线监测Key words
Raman scattering/OTDR/power cable/distributed fiber temperature detecting system/on-line monitoring分类
信息技术与安全科学引用本文复制引用
肖恺,李平,罗巧梅,张静,杨峰,赵浩..分布式光纤测温系统在电缆温度监测中应用[J].现代电子技术,2014,(12):153-155,159,4.基金项目
上海市科学技术委员会的资助课题 （）
