OPTIMIZES THE EFFICIENCY TRANSFER OF ENERGY INTO A HIGH POWER PIEZOELECTRIC TRANSDUCER IN FUNCTION OF COMPONENT ELEMENTS OF EQUIVALENT ELECTRIC SCHEMES

摘要

The ultrasonic systems constituted from ultrasonic piezoelectric transducers and other elements of acoustics chain are supplied from electronic generators and works in commutation. The commutation-working regime assures a high efficiency for electronic generator, but generates a large spectrum of frequency. The paper presents a mathematical analyzer of comportment of miscellaneous adaptation schemes which are finding between generator and piezoelectric transducer, which raise the efficiency transformation of electrical energy into mechanical energy in function of frequency and acoustic charge. It is presented and characterised comparative these adaptation schemes. It is given the diagrams of characterisation and the experimental results obtained from author.