电风车式光纤高电压传感器  

Optical High-Voltage Transducer based on Electric Pinwheel

作　　者：李长胜[1] 李宝树[1] 王爱国 

机构地区：[1]华北电力大学电力工程系,19信箱保定071003

出　　处：《仪器仪表学报》2000年第6期638-639,643,共3页Chinese Journal of Scientific Instrument

基　　金：华北电力大学青年教师基金

摘　　要：基于高电压作用下电风车的转动特性以及光纤传输技术 ,提出一种电风车式光纤高电压传感器 ,介绍了这种传感器的基本结构 ,并给出其测量线性、稳定性的实验结果。这种传感器结构简单、成本低 ,可实现高电压的绝缘性测量。当环境温度为30 .2℃ ,相对温度为 48%时 ,传感器的线性测量为 3.0～ 5 .0 k V,其测量结果的非线性误差低于 3%。An optical high-voltage transducer based on an electric pinwheel is presented in this paper. An electric pinwheel with point electrodes will rotate under a certain applied high-voltage because of the corona discharge and the electric wind effect. So the applied high-voltage can be measured by measuring the rotating speed of the pinwheel. The incident light beam from a laser and a plastic optical fiber is chopped into the emerging light pulse by the rotating vane of the pinwheel. And the frequency of the light pulse is direct proportional to the rotating speed. This new type of transducer has the properties of the electric insulating measurement, simple structure and low cost. When the temperature is 30.2℃ and the relative humidity is 48%, under the voltage scope of (3.0～5.0) kV, there is a linear relationship between the applied high-voltage and the rotating speed of the electric pinwheel,and the non-linearity error of the experimental result is less than 3%.

关 键 词：电风车 转速 高电压测量 塑料光纤 传感器 

分 类 号：TM835.1[电气工程—高电压与绝缘技术] TP212[自动化与计算机技术—检测技术与自动化装置]