用于测量雷电流的全光纤电流传感器

雷电流测量是研究雷电的一个重要部分。为此，本文研究了一种用于测量雷电流的全光纤电流传感器。首先，介绍了光纤电流传感器的基本原理及结构组成；其次，在实验室中对该传感器的响应速度、测量精度及测量范围等性能指标进行了测试。结果表明，该传感器的响应速度为微秒级，可测量范围在1 kA~100 kA，动态范围大于40 dB，测量误差小于5%，测量波形与标准的Pearson电流探头测试波形相比一致性较好，该研究为雷电流测量提供了一种新方法。

All-fiber optical current transformer for measuring lightning current

It is an important part for studying lightning to measure lightning current. Consequently, this paper studied an all-fiber optical current transformer for measuring lightning currents. Firstly, the basic principle and structure of the all-fiber optical current transformer were introduced. Then, the performances including the response speed, measurement accuracy and measurement range were tested in the laboratory. The results show that the response speed of the sensor is in microsecond. The measurable range is over 1 kA~100 kA. The dynamic range is greater than 40 dB and the measurement error is less than 5%. The measurement waveform of all-fiber optical current transformer coincides with that of standard Pearson current probe. The paper provides a new method for lightning current measurement.