基于马赫曾德尔的分布式光纤电缆扰动检测装置研究  

Research on Distributed Fiber Optic Cable Disturbance Detection Device Based on Machzender

作　　者：步天龙 王永光 张大沛 寇汉鹏 陈学峰 黄思樵 BU Tianlong;WANG Yongguang;ZHANG Dapei;KOU Hanpeng;CHEN Xuefeng;HUANG Siqiao(Mengdong Power Grid Company,Hohhot 120022,China;School of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]蒙东电网公司,内蒙古呼和浩特120022 [2]长春理工大学光电工程学院,吉林长春130022

出　　处：《电工技术》2024年第S01期338-342,共5页Electric Engineering

摘　　要：介绍了一种新的电缆扰动监测系统,解决了传统电网舞动检测器在面对电磁干扰和持续供电问题时的问题。该系统采用双端M-Z光路结构,能够实时定位舞动位置,而检测器采用薄壁增敏电缆套筒构建,经过有限元分析得出其固有频率为106.77 Hz,与实验数据仅有1.65%的误差。实验结果显示,该检测器在0~140 Hz范围内的相对灵敏度为41.25~66.78 dB re rad/g,对舞动信号的检测灵敏度高。In this paper,an innovative optical fiber cable disturbance monitoring system is introduced,which successfully solves the dilemma of the traditional electric network wave detector in the face of electromagnetic interference and continuous power supply.The system adopts a double-ended M-Z optical path structure,which can locate the dance position in real time,and the detector is constructed with a thin-wall sensitized cable sleeve.The finite element analysis shows that its natural frequency is 106.77 Hz,which is only 1.65%error with the experimental data.The experimental results show that the relative sensitivity of the detector is 41.25~66.78 dB re rad/g in the range of 0~140 Hz,which confirms its high sensitivity to the detection of dancing signals.

关 键 词：M-Z干涉仪 薄壁增敏电缆套筒 有限元分析 检波器 

分 类 号：TN247[电子电信—物理电子学]