ULTRASONIC FLOW SENSOR COMPRISING STAGGERED TRANSMITTING AND RECEIVING ELEMENTS

摘要

The invention relates to an ultrasonic flow sensor for measuring the volumetric flow of a flowing medium through a flow channel (24). Said sensor comprises a transducer array (2), which is located in the flow cross-section of the flow channel (24) and which generates ultrasonic waves (27) that are propagated in the flow cross-section of the flow channel (24) transversally to the flow direction (14) of the flowing medium. According to the invention, the ultrasonic transducer array (2) has a staggered arrangement of transducer elements (4), which act alternately as transmitting (10) and receiving antennae, in such a way that all emitted individual sonic waves (27) interfere to form common wave fronts (28).