Sensor arrangement in an electromagnetic rotary drive

摘要

The sensor arrangement determines the direction of rotor magnetization and/or the axial position of the rotor (1) and has at least two sensors (S1,S2) for determining a magnetic flux. Both sensors are arranged with respect to the rotor to enable determination of the sub-fluxes of the magnetic flux which produces the stray field of the permanent magnetic rotor. Independent claims are also included for an electromagnetic rotary drive and a method of operating a rotary drive.