Summation of high-frequency Langevin transducers vibrations for increasing of ultrasonic radiator power

Abstract

This article presents the results of the development and study of an ultrasonic radiator (US radiator) of increased power, which is designed for control, location, cavitation processing of liquids, and coagulation of foreign particles in a gaseous media at frequencies from 30 to 90 kHz.The proposed method of vibration summing of low-power high-frequency Langevin transducers on a diametrically vibrating the summing radiating element (summator) allowed developing such a US radiator. The selecting of shape and the search of optimal dimensions allowed creating real designs of US radiator with operating frequency up to 90 kHz. It can generate exposure intensity of 45 W/cm2 at the US radiator power up to 1900 W and an operating frequency of 30 kHz or exposure intensity of 34.6 W/cm2 at the US radiator power up to 270 W and an operating frequency of 90 kHz at cavitational processing of liquids.