Position detection for a rotation angle sensor

A position detection device for a rotation angle sensor, the position detection device comprising:

• at least one stator;
• at least one rotor having a main body and multiple rotor vanes extending radially outward from the main body, wherein multiple first rotor vanes of the multiple rotor vanes are designed differently from multiple second rotor vanes of the multiple rotor vanes;
• and
• an evaluation unit to detect when the multiple first rotor vanes reach, have reached, or exceed a predetermined rotation angle,
• wherein the multiple first rotor vanes and the multiple second rotor vanes are arranged in a predetermined sequence relative to one another, such that, at least one second rotor vane is provided between each two consecutive first rotor vanes in a circumferential direction around an entirety of the main body, and a number of the second rotor vanes between each two consecutive first rotor vanes in the circumferential direction around the entirety of the main body is different.