Absolute position measuring method for source shaft e.g. for servo drive, using evaluation unit for supplying current/voltage to sensor part for duration of measurement

摘要

The measuring method uses an evaluation unit (11) for detecting and evaluating the the position and the number of rotations of a source shaft (2), with a stationary sensor part (5) cooperating with a sensor part (4) attached to the source shaft, at least one of the sensor parts coupled to a voltage supply and periodically provided with a current/voltage for the duration of the measurement via the evaluation unit. An Independent claim for a device for measuring the absolute position of a source shaft is also included.