Patent ID: 6946773
Filing Date: 2005-09-20
Classification: B01J,B06B,G10K

Abstract:
1. A system for delivering ultrasonic energy to a liquid, comprising; A. two or more ultrasonic transducers adapted for coupling to said liquid, wherein B. two or more ultrasonic generators, each ultrasonic generator being adapted for producing a drive signal within one of the ranges of frequencies associated with one of the two or more resonant frequencies; C. a multiplexer for receiving the drive signals from the two or more ultrasonic generators and for electrically coupling the received drive signals, one at a time in a time sequence, to the electrically coupled two or more ultrasonic transducers; and D. a controller for controlling the multiplexer in a first state, so that one of the two or more ultrasonic generators drives the coupled two or more ultrasonic transducers to produce ultrasonic energy in said liquid characterized by a frequency that sweeps across one of the frequency ranges, and