Fundamental Problems of the Powerful Electronics

In this paper experimental results on the sectional ultrasonic irradiator (USI), which is implemented on several piezoplates located parallel to each other on the lateral surface of cylindrical body, are presented. It is shown that with section number increase from I up to 4, uniformity of irradiation intensity across USI sharply increases. The further increase in number of sections increases the uniformity more poorly. It is noted, that six-section USI provides only 10-15 % fluctuation of the intensity across the irradiator.