Ultrasonic device with integrated level detection

摘要

The present invention relates to an ultrasonic device (10) for cleaning items to be cleaned, comprising a tub element (1) with a filling space (2) that can be filled with liquid and at least one ultrasonic transducer (3) which is transmitted via an associated emission section (1a) in the bottom area of the tub element ( 1) Ultrasonic waves are coupled into the tub element, at least one heating element (4) arranged in a side wall (1b) of the tub element (1) for heating the liquid in the filling space (2), and control means (5) for controlling the ultrasonic transducer (3) and the heating element (4), wherein the control means (5) are designed to evaluate an electrical heating power of the heating element (4) and / or an ultrasonic power of the ultrasonic transducer (3) to detect a level of the liquid in the filling space (2).