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Investigation of the Measurability of Magnet Quality for IPM Rotors by using an Opposing Field and a Rotor Scan System

This research aims to quantify the measurability of permanent magnet quality for Internal-Permanent-Magnet (IPM) rotors in a production line. The focus lies on the determination of the coercive characteristics of those permanent magnets based on an opposing field treatment using the present magnetization coil and a subsequent flux density measurement around the rotor circumference. Furthermore, simulation results will be presented to determine the predictability of this measurement.