Representation of a multi-electrodes piezoelectric transformer by experimental extraction of its electric parameters

Thomas Martinez; Dejan Vasic; Gaël Pillonnet; François Costa

doi:10.1117/12.2514448

21 March 2019 Representation of a multi-electrodes piezoelectric transformer by experimental extraction of its electric parameters

Thomas Martinez, Dejan Vasic, Gaël Pillonnet, François Costa

Author Affiliations +

Proceedings Volume 10967, Active and Passive Smart Structures and Integrated Systems XIII; 109671S (2019) https://doi.org/10.1117/12.2514448
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

Abstract

Traveling wave piezoelectric transformers are a new type of multi-electrodes piezoelectric transformer allowing to obtain a multiphase system of voltages at the output. The behavior of multi-electrodes piezoelectric transformers is well characterized by an admittance matrix (Y) representing all the couplings between electrodes. The Y parameters can be determined by analytical modelling or as presented in this paper by experimental measurements. In this paper we focus on a cylinder-type multi-electrodes piezoelectric transformer on which we measure the Y parameters with a vector network analyzer. By extrapolation of Laplace expression of the admittances, we represent the Y-parameters as equivalent RLC circuits in order to have a complete circuit model available for simulation with classic electrical simulation software. The results of the simulation are compared to experimental results to validate the modelling approach.

Conference Presentation

Citation Download Citation

Thomas Martinez, Dejan Vasic, Gaël Pillonnet, and François Costa "Representation of a multi-electrodes piezoelectric transformer by experimental extraction of its electric parameters", Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XIII, 109671S (21 March 2019); https://doi.org/10.1117/12.2514448

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