飞机供电系统电流参数的光耦隔离测量

The Current Measurement with Optical Coupling Isolation For Aircraft Power Supply System

论述一种廉价的光耦隔离放大器配以分流器测量飞机供电系统交直流电流参数的方法。对电网电流的光耦测量原理、性能和关键部件光耦隔离器的设计进行了深入的分析，给出测量准确度、频带宽度、共模抑制比等主要指标。

A measuring current method with optical coupling isolation amplifier added shunt for aircraft power supply perameter is described. The measurement theory.experiment per formance and design of optical coupling isth lation amplifier are explained. The measuring accuracy frequency bendwidth and CMRR ete. main performance have been analysed.