高电压测量用光电系统的设计

Design of the Electro-Optic System for High Voltage Measurement

采用模拟频率调制的编码方式分析了光电测量系统的工作原理 ,提出了光发射器、光导纤维和接受器的一些设计准则 ;给出了带宽 6 0 0 k Hz、信噪比 48d B的光电系统设计实例。实测表明 ,该设计即使在 6 0 0 k Hz的高频率下也具有较好的响应特性 ,适合于高电压。

The analog frequency modulated mode is given in this paper for the electro optic system, and the design requirements of every part are described. The practical example, with bandwidth 600 kHz and signal to noise ratio 48 dB, is presented. The results show that response characteristics are good even at high frequency. This system is suitable for the measurements at high voltage levels in the presence of high intensity electromagnetic interference.