Abstract: A method of characterizing a contactless transmission element (100) is provided, wherein the method comprises sampling a first value of a first physical parameter indicating a property of a contactless transmission element (100), and determining an interference reliability value for the contactless transmission element (100) based on the sampled first value of the first physical parameter. In particular, this interference reliability value may relate to a liability of the contactless transmission element (100) to an external field or to external influences.

Abstract: In a method and a system (1) for determining a position (d) of a wanted object (BKn) fitted with a transponder (TRn), scanning signals (INTnle, INTnri) with current strengths (Ire, Iri) changed (reduced) in steps and starting from a starting value (maximum value) are supplied to a left transmission coil (9) and separately therefrom to a right transmission coil (10), and it is determined by detection means (15, 16) when the transponder (TRn) associated with the wanted object (BKn) has changed its behavior between delivery and non-delivery of its response signal (RESn), whereupon those values V(Ii+1), V(Ik+1) of the changed (reduced) current strengths (Ii+1, Ik+1) are determined at which the transponder (TRn) has changed its behavior between delivery and non-delivery of its response signal (RESn), and the position (d) of the wanted object (BKn) is subsequently determined from said values V(Ii+1), V(Ik+1).

Abstract: In a method and a system (1) for determining the position (d) of a wanted object (BKn) fitted with a transponder (TRn), scanning signals (INTnle, INTnri) with current strengths (Ile, Iri) changed (reduced) in steps and starting from a starting value (maximum value) are supplied to a left transmission coil (9) and separately therefrom to a right transmission coil (10), and it is determined by detection means (15, 16) when the transponder (TRn) associated with the wanted object (BKn) has changed its behavior between delivery and non-delivery of its response signal (RESn), whereupon those values [V(Ii+1), V(Ik+1)] of the changed (reduced) current strengths (Ii+1, Ik+1) are determined at which the transponder (TRn) has changed its behavior between delivery and non-delivery of its response signal (RESn), and the position (d) of the wanted object (BKn) is subsequently determined from said values [V(Ii+1), V(Ik+1)].