首页 | 本学科首页   官方微博 | 高级检索  
     检索      

分布式光纤喇曼温度传感器的循环解调法
引用本文:张利勋,欧中华,刘永智,代志勇,彭增寿,王大文.分布式光纤喇曼温度传感器的循环解调法[J].光子学报,2005,34(8):1176-1178.
作者姓名:张利勋  欧中华  刘永智  代志勇  彭增寿  王大文
作者单位:1. 电子科技大学光电信息学院,成都,610054
2. 中电科技集团八所,安徽淮南,210053
摘    要:为了抑制温漂噪声积累,瑞利背向散射光窜扰反斯托克斯背向散射光,考虑了最近测量瑞利背散射光曲线解调反斯托克斯背向散射光温度曲线方法,即循环解调方法;该方法提高了系统的测温精度、稳定性,降低了系统的成本.实验结果与理论分析一致,系统的测温精度达±0.05℃.

关 键 词:瑞利背散射  喇曼背散射  分布式光纤喇曼温度传感器  光学时域反射技术
收稿时间:2005-01-06
修稿时间:2005年1月6日

A Circulated Demodulated Method of Distributed Fiber Raman Temperature Sensor
Zhang Lixun,Ou Zhonghua,Liu Yongzhi,Dai Zhiyong,Peng Zengshou,Wang Dawen.A Circulated Demodulated Method of Distributed Fiber Raman Temperature Sensor[J].Acta Photonica Sinica,2005,34(8):1176-1178.
Authors:Zhang Lixun  Ou Zhonghua  Liu Yongzhi  Dai Zhiyong  Peng Zengshou  Wang Dawen
Institution:(1 School of Opto-eletronic Information UESTC, Cheng du, Sichuan 610054 )
(2 Eighth Graduate School of China-Electronic Science Group, Huainan, Anhui 210053)
Abstract:In order to restrain the temperature excursion accumlation and Anti-Stokes back scattering intermingled with Rayleigh back scattering,a new type of demodulation method for distributed fiber Raman temperature sensor is proposed.By this method,which is named as circulated demodulated method(CDM),the Anti-Stokes optical time domain reflectance (OTDR) curves is demodulated by Rayleigh OTDR curves.The remedy increases the temperature precision,stability and sensitivity of system,reduces the cost of the system.The experiment results agree with the theory and the precision reaches at ±0.05℃.
Keywords:Rayleigh back scattering  Raman back scattering  Distributed fiber Raman temperature sensor  Optical time domain reflectance
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《光子学报》浏览原始摘要信息
点击此处可从《光子学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号