CURRENT MEASURING DEVICE

PROBLEM TO BE SOLVED: To provide a current measuring device capable of measuring a current flowing through a measuring object with high precision and a compact configuration.SOLUTION: A current measuring device includes a plurality of magnetic sensors 2 for detecting magnetism generated by a current to be measured flowing through a bus bar 1. The magnetic sensors 2 are arranged around the bus bar 1 elliptically. The maximum sensitivity of the magnetic sensor 2 is directed to the tangential direction of an ellipse. Resultantly, the current measuring device can be achieved with a compact configuration and high precision current measurement is possible even when a wide bus bar is employed. Since magnetic sensors 2 are elliptically arranged, magnetic shield can be omitted, allowing problems caused by magnetic shield to be avoided.