ANGULAR SENSOR SYSTEM AND METHOD OF STRAY FIELD CA

专利名称：ANGULAR SENSOR SYSTEM AND METHOD

OF STRAY FIELD CANCELLATION

发明人：RUIGROK, Jaap,SCHAPENDONK,

Edwin,MARAUSKA, Stephan,HELMBOLDT,Dennis,Van DONGEN, Marijn Nicolaas

申请号：EP19153901.4申请日：20190128公开号：EP3531074A3公开日：20190911

专利附图：

摘要：A system for determining angular position includes a magnet having at least

four poles and an axis of rotation, wherein the magnet produces a magnetic field. A firstmagnetic field sensor produces a first output signal and a second magnetic field sensorproduces a second output signal in response to the magnetic field. The magnetic fieldsensors are operated in a saturation mode in which the magnetic field sensors are largelyinsensitive to the field strength of the magnetic field. Thus, the first output signal isindicative of a first direction of the magnetic field and the second output signal isindicative of a second direction of the magnetic field. Methodology performed by aprocessing circuit entails combining the first and second output signals to obtain arotation angle value of the magnet in which angular error from a stray magnetic field is atleast partially canceled.

申请人：NXP B.V.

地址：High Tech Campus Building 60 5656 AG Eindhoven NL

国籍：NL

代理机构：Pomper, Till

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