Patent ID: 9453933
Filing Date: 2016-09-27
CPC Classification: G01B,G01D,G01R,G01V

Claim Text:
1. A method for determining a position coordinate of a mobile unit which has a first coil, the mobile unit being disposed in a manner allowing movement relative to a stationary second coil, the first coil having two part-windings, the second coil likewise having two part-windings, the method comprising: determining prevailing strengths of an inductive coupling of one respective part-winding of the first coil, or of the first coil to a respective part-winding of the second coil or to the second coil; determining a phase shift of induced AC-voltage signals; determining a position range in which the phase shift is a biunique function of the position from the coupling strengths; and determining the position coordinate from the phase shift.