摘要
研究了基于相干光时域反射计的光纤传感技术,分析了基于相干光时域反射计的分布式温度传感机理.根据传感系统的组成和原理,建立了仿真模型,利用MATLAB对传感系统的性能进行了仿真与分析,结果表明基于相干光时域反射计的传感系统可以达到温度测量分辨率为0.01℃,空间分辨率为1m的性能指标.
The distributed optical fiber sensing technology based on coherent optical time-domain reflectometer（COTDR）is researched.The measurement mechanism of distributed temperature sensing techniques based on COTDR is analyzed.Simulation model is established and sensing system performance is analyzed in simulation according to the composition and principles of sensing system.Finally,a temperature resolution of 0.01 ℃ and a spatial resolution of 1 m are achieved by the MATLAB simulation.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2010年第11期1988-1992,共5页
Acta Photonica Sinica
基金
国家高技术发展计划(2006AA09Z141)资助
关键词
分布式光纤传感
温度
光时域反射
瑞利散射
Distributed optical fiber sensing
Temperature
Coherent Optical Time Domain Reflectometry（OTDR）
Rayleigh scattering
