Ultrasonic cavitation bubbles: where most of the work of ultrasonic cleaning gets done.

The primary mechanism for ultrasonic cleaning is cavitation.  Cavitation occurs when the local high and low pressure waves in the ultrasonic cleaner create tiny, fast-moving bubbles.  The bubbles strike against a surface and implode, creating small regions of intense current that carries grime and dirt away from a surface.  Okay, having said that, how does cavitation REALLY work?  What design features can be incorporated into an ultrasonic cleaner to maximize the effectiveness of cavitation cleaning.  A group of researchers from the Laboratorium voor Akoestiek en Thermische Fysica in Belgium asked that very question.

For further information visit www.ncbi.nlm.nih.gov.

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