Method and device for detecting the position and the edge separation of ferromagnetic layers in or on bodies, in particular coins

摘要

Method and device for detecting the position and the edge separation of ferromagnetic layers in or on bodies, in particular coins, the individual bodies being brought into the force field of a magnet. In this case, on the basis of the effect of the magnetic field the bodies are assigned different positions in relation to the magnets in accordance with the respective position and the respective edge separation of the ferromagnetic layers. This enables selection of forged coins. <IMAGE>