CURRENT MEASURING DEVICE AND CURRENT MEASURING METHOD

摘要

A current measuring device and a current measuring method, the current measuring device comprising: two or more than two magnetic field sensors (11), which are distributed equidistantly outside the conductor being measured (10), and each magnetic field sensor is used to acquire a magnetic field intensity of an induced magnetic field generated by a current through the conductor being measured (10); a signal processing module (13), which is connected to each magnetic field sensor (11) via a signal transmission part (12), accumulates in linear fashion the magnetic field intensities acquired, and calculates the current value in the conductor being measured (10) on the basis of the accumulated magnetic field intensity acquired by accumulation. The current measuring device and the current measuring method proposed reduce the effect of the shape of the conductor on the acquired magnetic field intensity, and reduce the effect of an external current source on the measured result. Therefore, it solves the problem that, when measuring a circuit by using a current measuring method in the prior art, the interference factors in measurement are not regular and therefore cannot be compensated for, leading in turn to a comparatively low accuracy of reproduction in measurement.