THE PROCESSES DESIGN IN MECHANICAL SIZES TRANSDUCERS WITH DOMEN-DISSIPATION PIEZOELEMENTS IN ELECTRIC HIGH-PASSES CHARTS

Abstract

The paper proposes an equivalent circuit of the transducer mechanical quantities with piezo in the scheme of passive high-pass filter with a T-shaped and double-T connection diagram. Obtained by frequency converters transfer coefficient. The modeling and study of the frequency response of piezoelectric transducers with computer simulation package Multisim (EWB). In this case, according to the theory bimorph electromechanical analogies presented series-parallel oscillatory RLC – circuit. Shows the correspondence of computer and mathematical model of a real converter converter, which is confirmed by the coincidence of the frequency and amplitude characteristics. The information generated by the computer model response transducers correspond to response, and based on mathematical models. Found that the nonlinearity of frequency and amplitude-frequency error converters depends on the angle between the polarization vector and the electric field vector of the output voltage. For converters based on a modified schemes of high pass filters with increasing angle between the polarization vector and the electric field vector of the output voltage from 0 to 40˚ resonance peak amplitude-frequency converter error and decreases