Patent ID: 9673373
Date: 2017-06-06
CPC Classifications: B06B,B08B,H01L

Claim:
1. A system for delivering megasonic energy to a liquid, comprising: one or more megasonic transducers, each transducer having a single operating frequency within an ultrasound bandwidth and comprising two or more groups of piezoelectric elements arranged in one or more rows; and a megasonic generator means for driving the one or more megasonic transducers at frequencies within the ultrasound bandwidth, the megasonic generator means being adapted for sequentially changing the voltage applied to each of the two or more groups of piezoelectric elements so as to achieve substantially the maximum acoustic pressure for each piezoelectric element, wherein the megasonic generator means and one or more megasonic transducers is constructed and arranged so as to produce ultrasound within the liquid.