Inductive measuring assembly for free-fall coin devices

摘要

The measuring arrangement (18) has two coaxial elongate transmitting coils (22, 24) arranged adjacent to each another. A shell core is provided with an E-shaped cross section, and receives the coils between outer arms. A central arm partially extends into one of the coils. An elongate coil body is made of plastic, and comprises two peripheral grooves arranged at a short axial distance for receiving coil windings. An elongate, axially aligned recess is provided within the region surrounded by the grooves on the side of the coil body for receiving the central arm.