Ultrasonic transducer for distance measurement

摘要

The transducer has a transducer element (1), acting as both a transmitter and a receiver. The element is contained within a transducer housing together with an electronic stage for generation and evaluation of the ultrasonic signals and an active movable damping element (4) at a given distance from the transducer element. The damping element is inactive during the transmission of the ultrasonic signals and is activated during the reception of the reflected ultrasonic signals, for damping the oscillation of the transducer element.