Effect of the electrical loading on forced vibrations of transversely po-larized piezoceramic bars

This article analyzes the experimental and computational results obtained in the study of the longitudinal vibrations of thin piezoceramic bars with transverse polarization depending on the electrical load such as the given constant amplitude current or voltage. Calculations of the admittance, coupling coefficients, mechanical and piezoelectric loss tangents were made on the basis of a new simple iterative method. The idea of alternate measuring the voltage drop in the modernized Mason scheme was further developed, and the phase shifts between the components of admittance were determined. The experimental data are in good agreement with the calculated values.Reference 26, figures 5.