Inductive sensor for producing switching signal when electromagnetic radiation damping material approaches has flat circuit board with at least one through opening through which coil core is passed

摘要

The inductive sensor has at least one conducting track (14) on a circuit carrier (16) that forms at least one coil (12) and a coil core (18) associated with the coil. The circuit carrier is a flat circuit board and has at least one through opening (28) through which the coil core is passed. The coil core is U-shaped or semi-toroidal in shape. An independent claim is also included for a method of manufacturing an inventive device.