A method for resetting of a magne torsos tive revolution sensor and a corresponding rotation sensor

摘要

The invention relates to a method for resetting a magnetoresistive rotation sensor to a defined state, wherein the rotation sensor comprises at least one sensor element, which consists of at least one ferromagnetic sensitive layer and at least one ferromagnetic reference layer separate by a non-magnetic layer, and a rotatable trigger magnet having a first magnetic field, which trigger magnet can be rotated in relation to the at least one sensor element in order to change the magnetization in at least one partial region of the sensitive layer. The method is characterized in that a reorientation of the magnetization in the sensitive layer is achieved by applying a second magnetic field.