Patent ID: 9610617
Date: 2017-04-04
CPC Classifications: B08B,H01L

Claim:
1. A sonic processing system comprising: a tank for containing fluid; a mounting plate having a uniform thickness and operatively coupled to and situated in the tank, the mounting plate having a first fundamental resonant frequency and a first harmonic frequency of a predetermined order of the first fundamental resonant frequency; a plurality of piezoelectric transducers fastened on the mounting plate and having substantially the same resonant frequency, the resonant frequency being equal to a second fundamental resonant frequency and, the plurality of piezoelectric transducers having substantially the same harmonic frequency, the harmonic frequency being equal to a second harmonic frequency of the predetermined order of the second fundamental resonant frequency, wherein at least one of the plurality of piezoelectric transducers is designated to operate at the second fundamental resonant frequency and at least another of the plurality of piezoelectric transducers is designated to operate at the second harmonic frequency, and wherein the first fundamental resonant frequency substantially equals to the second fundamental resonant frequency, and first harmonic frequency substantially equals to the second harmonic frequency.