This paper proposes a possibility to create the ultrasonic cavity into liquid in motion with depth of water from 0.1 to 1 mm. We are created the ultrasonic cleaning system that performs an ultrasonic cavity in thin water layer in motion (Fig. 1). The finite element method (FEM) was used to define both harmonical analysis and interaction between ultrasonic actuator and medium (air or/and water). The prototype ultrasonic cleaning system was developed and some experimental results were defined.
The laser vibrometer used for measuring of mechanical fluctuations on the piezoelectric actuator’s surface and measuring results are presented.