基于分布式光纤温度传感器的高压电力电缆温度在线监测系统  

Online Temperature Monitoring System for High Voltage Power Cable Based on Distributed Optical Fiber Temperature Sensors

作　　者：周芸[1] 杨奖利[2] 

机构地区：[1]西安工业大学电信学院,陕西西安710032 [2]西安西开高压电气股份有限公司,陕西西安710018

出　　处：《高压电器》2009年第4期74-76,81,共4页High Voltage Apparatus

摘　　要：根据分布式光纤温度传感器被测信号的特殊性,在常规微弱信号检测的基础上,提出了一种专门的、针对分布式光纤温度传感器系统的微弱信号检测方案,采用软、硬件结合的方案,能够在强噪声下有效地提取微弱信号,以求得尽可能大的信号噪声比,而所需的器件与设备极为通用,相对成本较低,检测整个过程完成的时间也较短,具有较高的实用性。According to the particularity of the detected signals by distributed optical fiber temperature sensor, a weak signal detection scheme specially for distributional optical fiber temperature sensor system is presented based on the conventional weak signal detection method. By combining software and hardware, weak signal can be effectively extracted from strong noises to achieve higher signal-to-noise ratio. The components and devices in this scheme are general with lower cost, and the whole detection time is short.

关 键 词：分布式光纤温度传感器 Stokes和Anti—Stokes后向散射 信号处理 数据采集 

分 类 号：TP274.4[自动化与计算机技术—检测技术与自动化装置]