Patent ID: 11885648
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for determining a rotation angle of a magnet, the method comprising:
measuring, by a sensor device associated with the magnet, a 3D magnetic field vector of a magnetic field generated by the magnet, wherein the 3D magnetic field vector describes at least a part of an ellipse in 3D space during a rotational movement of the magnet;
mapping the measured 3D magnetic field vector to a 2D vector based on a compensation mapping,
wherein the compensation mapping is configured to map the ellipse in 3D space to a circle in 2D space, and
wherein the compensation mapping is based on a linear mapping represented by a compensation matrix; and

determining a rotation angle of the magnet based on the 2D vector.