集成光波导直流电场传感器设计与实现  

Design and Implementation of Integrated Optical Waveguide DC Electric Field Sensor

作　　者：张建鑫 张家洪 陈福深 ZHANG Jianxin;ZHANG Jiahong;CHEN Fushen(Faculty of Information Engineering and Automation,Kunmiing University of Science and Technology,Kunming 650500,China;Yunnan Key Laboratory of Computer Technology Application,Kunmiing University of Science and Technology,Kunming 650500,China;Beijing Safety Test Technology Co.,Ltd.,Beijing 102209,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650500 [2]昆明理工大学云南省计算机应用技术重点实验室,昆明650500 [3]北京森馥科技股份有限公司,北京102209

出　　处：《光子学报》2021年第5期59-67,共9页Acta Photonica Sinica

基　　金：国家自然科学基金(No.61765009);云南省应用基础研究项目(No.2018FB106)。

摘　　要：针对集成光波导电场传感器无法直接对直流电场响应的问题,基于场磨式电场传感器的基本原理,研制了一种由直流电机、屏蔽电极、集成光波导和感应电极构成的直流电场传感器,其体积为87.5 mm×58.5 mm×17.5 mm。推导给出了集成光波导直流电场传感器的工作原理,利用COMSOL软件构建了传感器的三维仿真模型,仿真得出了感应电极上的电场强度随着屏蔽电极的旋转进行周期性的变化。建立直流电场测试系统,对研制的集成光波导直流电场传感器的动态范围进行测试。结果表明:传感器的最小可测电场为5 kV/m,最大可测电场大于140 kV/m,线性相关系数为0.995 1,适合用于直流电场测量。To solve the problem that the integrated optical waveguide electric field sensor can not directly respond to the DC electric field,based on the basic principle of the field milling electric field sensor,a DC electric field sensor composed of a DC motor,a shield electrode,an integrated optical waveguide MachZehnder Interferometer(MZI),and an induction electrode is designed.Its volume is 87.5 mm×58.5 mm×17.5 mm.The working principle of the integrated optical waveguide DC electric field sensor is derived and a three-dimensional simulation model of the sensor is constructed using the COMSOL software.The simulation results show that the electric field intensity on the sensing electrode changes periodically with the rotation of the shielding electrode.A DC electric field experimental measurement system is established to test the dynamic range of the integrated optical waveguide DC electric field sensor.The results show that the minimum measurable electric field of the sensor is 5 kV/m,the maximum measurable electric field is greater than140 kV/m,and the linear correlation coefficient is 0.9951,which is suitable for DC electric field measurement.

关 键 词：集成光学 直流电场测量 光波导传感器 场磨式原理 电光调制 

分 类 号：TM935[电气工程—电力电子与电力传动]