Abstract
A new method is described for measuring the cavitation activity in an ultrasonic cleaning system. The method is based on the sonochemical liberation of chlorine from carbon tetrachloride dissolved in water. The chlorine release rate is found to be rapid and linear with irradiation time. The method is used to measure the effect on chlorine release rate of variables such as power input to the transducer, water height, water temperature, and concentration of surfactant in water. The method is also evaluated against the removal of graphite from alumina-ceramic rings. The result indicates that the chlorine-release rate has a quantitative relationship with cleaning efficiency. A further comparison of the method and an actual soil-removal process indicates that a quantitative relationship exists between the chlorine-release rate and cleaning capability at a given frequency.
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