Inductive current sensor

The utility model relates to an induction current sensor, which is composed of a magnetic reluctance element, an operational amplifier circuit, and a compensation current circuit and characterized in that four magnetic reluctance components are arranged as a comparison bridge structure, while the outputs of the four magnetic reluctance components are connected to the input of the operational amplifier circuit, whereas the output of the operational amplifier circuit is connected with the compensation current circuit. The utility model has the advantages of that the measuring range is wide; the volume is small; and the operation is safe and reliable, and the functions are multifold; when measuring the current, the current transformer with suitable compounding ratio is not needed; and long distance digitalization remote measuring and control can be realized.