Measurement of cavitation noise in ultrasonic baths and ultrasonic
Abstract
Ultrasonically induced cavitation is used frequently for immersion cleaning in liquids. There are two general classes of ultrasonically induced cavitation. Inertial cavitation is the rapid collapse of bubbles. Non-inertial cavitation refers to persistent pulsation of bubbles as a result of stimulation by an ultrasonic field. Both inertial cavitation and non-inertial cavitation may create significant localized streaming effects that contribute to cleaning. Inertial cavitation additionally causes a localized shock wave that may contribute to cleaning and or damage of parts. Both types of cavitation create acoustic signals (cavitation noise) which may be detected and measured with a hydrophone. This document provides techniques to measure and evaluate the degree of cavitation in support of validation efforts for ultrasonic cleaning tanks and cleaning equipment and reactors, as used, for example, for the purposes of industrial process control or for hospital sterilization.
Begin
2022-12-13
Planned document number
DIN IEC/TS 63001
Project number
02231345
