Ultrasound sensor with multiple switch exits

摘要

The sensor (1) has two separate switch outputs (7a, 7b), which are controlled by a processing unit (4). The processing unit executes two separate filter stages (6a, 6b) with an automated filtering criterion and a prescribed threshold value. The processing unit supplies a measuring value (5) to the filter stages in a cyclic manner, where the measuring value produces a binary signal when obtaining the threshold value by the filtering criterion. The processing unit activates the switch outputs. Amplitude of the measuring value is evaluated at the filtering criterion of the filter stages.