Genetic Identification of Parameters the Piezoelectric Ceramic Transducers for Cleaning System

Abstract

Source of ultrasounds in technical cleaning system are Sandwich type piezoelectric ceramic transducers. They have the ability to radiate in an ultrasonic medium with maximum acoustic power when the vibration is activated by a voltage generator with frequency equals the mechanical resonance of the transducer. In resonant the transducer are the oscillating element, for which equivalent electrical circuit consist of connection in parallel: Co end RLC. To optimization of structure and parameters piezoelectric ceramic transducer can been used the Genetic Algorithm. GA have been shown to be effective in the resolution of difficult problems. The resonant frequency of the real circuit varies during the operation in function of many parameters, among others, the most important are temperature, time, and the surface of the cleaned elements.