Abstract and keywords
Abstract (English):
The procedure is described and results of the experimental investigation of unsteady cavitation phenomena at ultrasonic cleaning cavitation unstable products are presented. It is established that at certain correlations of parameters of a transmitter and liquid the short-term pulses of acoustic pressure in liquid and connected with them relaxation oscillations of feed electric current are possible. Short-term power pulses of acoustic pressure determine a possibility of damages in parts under cleaning. Maximum values of acoustic pressure are higher greatly than its averages. Acoustic pressure pulsations take place in a certain range of mean amplitudes of an amplitude speed common for any liquid. A possibility is shown for the realization of a weak cavitation mode at ultrasonic cleaning cavitation unstable products.

ultrasound, cavitation, oscillation speed, pulses, relaxation oscillations, weak cavitation mode.
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