DEVICE FOR THE DETECTION OF AN ACTUATION ANGLE OF AN ELEMENT ROTATABLE ABOUT A SHAFT

摘要

Disclosed is a device (10) for detecting an actuation angle of an element (11) that is rotatable about a shaft (18). Said device (10) comprises a sensor unit (13) which emits an electrical signal in accordance with the angle of rotation and is equipped with a stationary Hall sensor array (13) and an annular permanent magnet (14) that is non-movably connected to the rotatable element (11). In order to be able to also detect an actuation angle of more than 90° in the same direction and especially an angle of more than 180°, the Hall sensor array (13) encompasses two or more individual Hall sensors (25) which are disposed at an angular distance around the annular permanent magnet (14). The Hall sensor (25) located in the most advantageous zone of the characteristic thereof can be selected by a microcontroller according to the current position of the rotatable or pivotable element (11).