一、前言广泛用于磁场测量的法拉第效应最近已用于电流测量。法拉第效应电流探头有几个优点,特别是可在高压电路中进行电流的测量。由于测量信息是由光信号强度变化来传送的,所以探头与测量和记录回路做到电气上完善地隔离。探头不妨碍被测电路中的电流流动;它只要求靠近到电路一个足够近的距离,使探头 I. INTRODUCTION The Faraday effect, which is widely used in magnetic field measurement, has recently been used for current measurement. Faraday effect current probes have several advantages, especially current measurements in high-voltage circuits. Since the measurement information is transmitted by the intensity of the optical signal, the probe and the measurement and recording circuit are electrically isolated. The probe does not obstruct the flow of current in the circuit under test; it only requires a close enough proximity to the circuit that the probe