MEASURING DEVICE AND MEASURING METHOD FOR DYNAMIC MAGNETIC CHARACTERISTIC OF MOTOR STATOR IRON CORE

摘要

PROBLEM TO BE SOLVED: To exactly detect various magnetic characteristics on the end part surface of a stator iron core of an electric motor under an operating state. SOLUTION: For measuring various magnetic characteristics on the end part surface of a stator iron core of an electric motor 1 under an operating state, a coil is given with a gap for inserting a detector 3 along the end part surface in the gear part of the motor stator iron core. The detector 3 is scanned in specific regions in the gear part and yoke part and one direction component or two independent direction components in a plane parallel to the end part surface of the iron core is detected at each measurement position in the region. By processing the obtained data with a signal processing system, a two-dimensional distribution of various magnetic characteristics in the region is measured.