激光在高压检测设备中的应用

描述了一种用激光光源驱动的光电式电流互感器，它由四部分组成：第一部分是传感头，它将被测电流信号转换成频率调制信号；第二部分是光纤传输和光电转换器，从传感头输出的频率调制信号驱动装在高压端的发光二极管，进而转换成光脉冲信号；第三部分是信号处理电路，把调频信号还原成被测电流；第四部分是工作电源，它通过光电池提供积分电路和压频转换器的工作电压。模拟试验结果表明它有很好的测量精度。

Implementation of laser in HV measurement equipment

A novel electro optical current transducer with laser driver consists of four parts.The first one is a sensor head converting the current flowing in the power line into the optical pulse FM signal.The second one is optical fiber transmission and optolectric conversion.The FM signal drivers LED of the high voltage are and converts it into optical pulse signal.The signal is transmitted to the low area through optical fiber and is converted into FM signal by PIN.The third part is signal-processing circuit;its function is convert FM signal into current measured.The fourth part is power supply;photocell used to gain energy from LD and output offers the operating voltage of the sensor head.It especially lays emphasis on problems to be researched deeply and resolved for purpose of accelerating the process of practical applications.The simulation results show it is very precise.