摘要
主要介绍了几种分布式光纤传感技术中的基于瑞利散射的光时域反射(OTDR)技术、相干光时域反射(COTDR)技术和相敏光时域反射(-OTDR)技术的基本工作原理,并分别介绍了这三种技术的发展现状及优缺点,提出了今后的发展方向和展望。
The basic principle of optical time domain reflectometry(OTDR)technique,coherent optical time domain reflectometry(COTDR)technique and phase sensitive optical time domain reflection(-OTDR)technology based on Rayleigh scattering are introduced.This paper respectively introduces the development status of the three technologies,summarizes their advantages and disadvantages,and puts forward the developing direction and prospect of future work.
出处
《光学仪器》
2015年第2期184-188,共5页
Optical Instruments
关键词
分布式光纤传感器
瑞利散射
光时域反射技术
distributed optic fiber sensing
Rayleigh scattering
optical time domain reflectometry
