Hall sensor line array for magnetic field inline measurements of PM-exited rotors

Abstract

Permanent magnet excited synchronous machines are increasingly used for new energy-efficient applications like e-mobility, in industrial robotic applications and process machines. As foresights show further gains in market request, also manufacturing methods need to be improved and persistent quality chains for each material in electric machines need to be established. In this paper, a new developed hall line-sensor array and comprehensive concepts for direct inline integrations are presented enabling direct in-process measurements of assembled rotor configurations. The hall sensors can therefore be arranged in different shapes (Line or circle geometries). Furthermore a prototype system with automated kinematics and a CNC-integrated sensor measurement program with sample measurement configurations are shown.