Position sensor and method to determine the position of a rotating shaft

摘要

The system has a rotating shaft with a magnet that is disposed on the shaft. A position transmitter (1) has a sensor unit (6) that is selected from a group consisting of an anisotropic magnetoresistance (AMR) sensor unit and a giant magnetoresistance (GMR) sensor unit. The sensor unit functions as a single-turn unit and a multi-turn unit. A microcontroller and the sensor unit evaluates magnetic field of the magnet. An independent claim is also included for a method for determining a position of a rotating shaft.