Summation of oscillations of high-frequency Langevin transducers to increase the power of an ultrasonic emitter

The article presents the results of the development, optimization and research of the characteristics of an ultrasonic (US) emitter of increased power to create ultrasonic oscillatory systems designed to intensify processes in various industries. The increase in the power of the emitter was achieved by summing up the oscillations of low-power Langevin transducers on a diametrically oscillating summing overlay. In the process of research, the main problem of the proposed emitter was solved, which consists in the destruction of piezoceramic rings due to the presence of a high uneven distribution of the oscillation amplitudes of the piezoelectric packets. The decrease in unevenness is achieved by providing the optimal shape of the profile of the summing overlay. The manufactured emitter of ultrasonic vibrations has the following characteristics: resonant frequency – 30.05 kHz; acoustic power (continuous mode) – 1450 W; efficiency – 78%; oscillation amplitude – 26 µm.