设计了一种应用块状磁光材料与集磁环相结合的集磁式光纤电流传感器。介绍了该传感器的结构及工作原理，构建了光纤电流传感器实验系统并进行了测试。实验结果表明，该集磁式光纤电流传感器在30kV工作电压下可准确实现30kA脉冲或连续电流的测量，为电力系统中高压大电流测量提供了一种切实有效的方法。

A new kind of ferromagnetic collector type fiber-optic current sensor which combines a nubbly magneto-optic material with a ferromagnetic concentrator ring is designed in this paper. The structure and the principle of the current sensor are described particularly. The experiment system of fiber-optic current sensor is constructed and tested. The experimental result is analyzed. It indicates that the ferromagnetic collector type fiber-optic current sensor can measure the pulse or continuous current of 30 kA with the voltage of 30 kV accurately, and an effective method is offered in the power system for measurement of high voltage and current.