基于分布式光纤振动传感器系统识别海底光电复合缆监测  

Submarine photoelectric composite cable monitoring based on distributed optical fibre vibration sensor system

作　　者：张宇[1,2] ZHANG Yu(PLA University of Science and Technology,Nanjing 210007,China;National Ocean Technology Center,Tianjin 300112,China)

机构地区：[1]解放军理工大学,江苏南京210007 [2]国家海洋技术中心,天津300112

出　　处：《现代电子技术》2020年第22期30-35,共6页Modern Electronics Technique

摘　　要：随着科学技术的进步,海洋经济成了各国经济发展的关键发展项目。在此过程当中,海底光缆的应用十分广泛,在海上风电、岛屿开发以及石油平台等多种海上项目都需要海底光缆的应用。海底具有较地底更为复杂的环境,如何保证海底光缆安全运行,实时监测海底光缆动态,定位光缆故障点,成为亟须解决的问题。通过分布式光纤振动传感器,借助Φ-OTDR技术,设计海底光电复合缆的监测系统。最终借助时空谱图进行故障点与非故障点的信号变化表征,实现海底光缆故障点的实时监测与定位。With the progress of science and technology,marine economy has become a key development project for the economic development of all countries.In this process,the application of submarine optical cable is very extensive,which is needed in various offshore projects such as offshore wind power,island development and oil platform.The seabed has a more complex environment than the underground.How to ensure the safe operation of the submarine optical cable,real-time monitoring the dynamic of the submarine optical cable,and positioning the failure point of the optical cable have become an urgent problem to be solved.The monitoring system of submarine photoelectric composite cable is designed by means of the Φ-OTDR technology and the distributed optical fiber vibration sensor.The signal changes of fault points and non fault points are represented by means of the time-space spectrum,so as to realize the real-time monitoring and positioning of the fault points of submarine optical cable.

关 键 词：海底光缆 光缆监测 系统设计 分布式光纤振动传感器 故障点识别 定位监测 

分 类 号：TN818-34[电子电信—信息与通信工程]