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Ultrasonic Pressure and Frequency Analyzer Disclosure Number: IPCOM000063927D
Original Publication Date: 1985-May-01
Included in the Prior Art Database: 2005-Feb-18

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McKenna, D Shi, S Way, W [+details]


In spite of its wide use, ultrasonic cleaning often gives uneven cleaning and can damage parts. Until now, there has been no way to measure the conditions inside an ultrasonic tank. The ultrasonic pressure and frequency analyzer monitors these conditions by measuring the frequency and pressure levels inside the tank, as shown in the drawing. With the ultrasonic pressure and frequency analyzer, ultrasonic tanks can be calibrated so that reproducible cavitation and controlled cleaning conditions can be obtained. Cavitation, the formation and collapse of countless small bubbles, is induced by ultrasonic pressure waves emanating from vibrating transducers mounted along the bottom and/or sides of the tank. The oscillations and collapse of cavitation bubbles produce additional pressure waves.