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Related Experiment Video

Updated: Jul 7, 2026

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
10:39

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

Published on: August 5, 2020

SPICE model for lossy piezoceramic transducers.

A Puttmer1, P Hauptmann, R Lucklum

  • 1Inst. for Measure. Technol. and Electron., Otto-von-Guericke-Univ., Magdeburg.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
|January 1, 1997
PubMed
Summary

This study presents a modified transmission line equivalent circuit to accurately model mechanical losses in piezoceramic transducers. The enhanced model, implemented in SPICE, validates well with simulations and experimental data for ultrasonic sensors.

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Area of Science:

  • Electrical Engineering
  • Materials Science
  • Acoustics

Background:

  • Piezoelectric transducers are crucial for ultrasonic applications.
  • Accurate modeling of mechanical losses in piezoceramics is essential for device performance.
  • Existing models may not fully capture the complexities of lossy materials.

Purpose of the Study:

  • To modify a transmission line equivalent circuit for modeling lossy piezoceramic transducers.
  • To incorporate mechanical losses using a lossy transmission line model.
  • To validate the model through simulations and experimental measurements.

Main Methods:

  • Developed a modified transmission line equivalent circuit.
  • Modeled mechanical losses with a lossy transmission line.
  • Derived equivalent circuit parameters from electro-acoustic analogies.
  • Implemented the model in SPICE circuit simulator.
  • Conducted time and frequency domain simulations and measurements.

Main Results:

  • Successfully modeled lossy piezoceramic transducers.
  • Demonstrated the model's effectiveness for low-Q materials.
  • Validated the model using a multilayered ultrasonic sensor.
  • Achieved good agreement between simulations and experimental data.

Conclusions:

  • The modified transmission line equivalent circuit effectively models mechanical losses in piezoceramics.
  • The SPICE implementation provides a practical tool for designing and analyzing ultrasonic sensors.
  • The model is suitable for characterizing both low-Q materials and complex sensor structures.