TO THE PROBLEM OF RESONANCE FREQUENCY SHIFT FOR A PIEZOCERAMIC PLATE SUBJECT TO VALUE OF ELECTROMECHANICAL COUPLING FACTOR OF A PIEZOCERAMIC MATERIAL

With use of the method of electric scheme-analogs, a piezoceramic plate loaded on both sides is considered. In a special case of a symmetrical load being an active impedance (including equality to zero), the equation is obtained for determing the resonance frequency trough the antiresonant frequency in dependence on square of electromechanical coupling factor b2. The results of numerical calculations are given for different extent of approach b2 to zero. The obtained results may be used for calculations frequency responses and pulsed modes of piezoelectric transducers.

Authors: S. I. Konovalov, A. G. Kuz’menko

Direction: Instrument Engineering and Information-Measurement Technologies

Keywords: Piezoelectric transducer, piezoceramic plate, resonance frequency, antiresonance frequency

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