Aimed at high voltage current measuring

a cuboidal material fiber-optic current sensor is developed.The optical path of sensor head and circuit structure are designed

the mathematic model of the sensor is established and the important factors which affect the sensor performance are indicated.The sensor is used for high current measuring

experimental results show that the cuboidal material fiber-optic current sensor can measure the continuous or pulse current of 30 kA with the voltage at 30 kV

and an effective method is offered for high voltage current measuring.