One-Dimensional Electromechanical Equivalent Circuit for Piezoelectric Array Elements

  • Abdelmajid BybiEmail author
  • Hilal Drissi
  • Mohammed Garoum
  • Anne-Christine Hladky-Hennion
Conference paper
Part of the Advances in Science, Technology & Innovation book series (ASTI)


In this chapter, we report a simple one-dimensional electromechanical method to model piezoelectric transducer array elements well known by slender bar elements. The method is inspired from Mason’s simplified model, which is tested in the case of a piezoelectric plate and extended to a rectangular slender bar. The research work investigates the effects of the material parameters on the electroacoustic performances, i.e., on the electrical impedance and the displacement. First, it compares the performances of a piezoelectric plate obtained experimentally and those calculated from the equivalent circuit. Two approaches are tested: the first method consists of the determination of the circuit components from the manufacturer parameters and the second one deduces them from the measured electrical impedance. The second approach is then tested in the case of a piezoelectric rectangular slender bar similar to those constituting the medical imaging transducer arrays. In this case, the electrical impedance and the displacement obtained are very close to the measured ones, especially around the resonance frequency. The same approach will be used to study a complete transducer array, i.e., taking into account all the elements, the filling material, the matching layers, and the backing. This constitutes the objective of our future work.


Piezoelectric transducer arrays Electromechanical equivalent circuits Mason’s model Piezoelectric slender bar 


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Abdelmajid Bybi
    • 1
    Email author
  • Hilal Drissi
    • 2
  • Mohammed Garoum
    • 1
  • Anne-Christine Hladky-Hennion
    • 3
  1. 1.Ecole Supérieure de Technologie de Salé, Materials Energy Acoustics Team (MEAT)Mohammed V University in RabatSaléMorocco
  2. 2.Ecole Supérieure de Technologie de Salé, Laboratoire d’Analyse des systèmes Traitement d’Information et du Management Intégré (LASTIMI)Mohammed V University in RabatSaléMorocco
  3. 3.Département ISENIEMN, UMR, CNRS 8520Lille CedexFrance

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