Switching signal delivering device - is controlled by permanent magnet attached to U=shaped permeable movable element and has differential magnetic field sensitive pick=up

摘要

The device delivers the signal in accordance with the position of a movable component, using a differential magnetic field sensitive pickup with a component whose position relative to a magnet is variable. Either the differential pickup or the magnet is connected to the movable component. The magnet (14) is connected to a U-shaped bracket (16) of a permeable material. A first arm (18) of the bracket (16) is in the first movement range of the movable component in front of the differential pickup (10) first part (12), and its second arm (17) is in front of the pickup (10) second part (11) in the second range of the movable element movement.