Inductive position determination system with varying coil geometry, and corresponding position determination method

A method for position determination using an inductive position determination system, wherein the method comprises:

• providing a first planar receiving coil arrangement, a second planar receiving coil arrangement, and a target that is movable relative to the first planar receiving coil arrangement and the second planar receiving coil arrangement;
• wherein a lateral width extent of the first planar receiving coil arrangement and a lateral width extent of the second planar receiving coil arrangement each vary along a movement path of the target;
• detecting a first output signal and a second output signal respectively generated by the first planar receiving coil arrangement and the second planar receiving coil arrangement depending on a position of the target;
• combining the first output signal and a second output signal in order to obtain a vector, wherein a rotation angle of the vector yields an ambiguous position indication of the target, and wherein a length of the vector describes a signal amplitude of a combination of the first output signal and the second output signal, the signal amplitude being dependent on an actual position of the target;
• and
• ascertaining an unambiguous position of the target based on the rotation angle and the length of the vector.