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Improving APT Systems' Performance in Air via Impedance Matching and 3D-Printed Clamp.

Liu Liu1, Waleed Abdulla1

  • 1Department of Electrical, Computer and Software Engineering, The University of Auckland, Auckland 1010, New Zealand.

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|June 10, 2023
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Summary
This summary is machine-generated.

This study enhances acoustic power transfer (APT) systems in air using impedance matching and a novel 3D-printed clamp. Results show improved sound pressure and output voltage for better performance.

Keywords:
APT system in airclampimpedance matchingpiezoelectric transducer

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Area of Science:

  • Acoustic Engineering
  • Materials Science
  • Electrical Engineering

Background:

  • Low acoustic impedance of air limits piezoelectric transducer performance.
  • Acoustic Power Transfer (APT) systems require efficient energy transfer in air.
  • Existing methods may not be cost-effective or easily implementable.

Purpose of the Study:

  • To improve the performance of acoustic piezoelectric transducer systems in air.
  • To investigate impedance matching techniques for enhanced Acoustic Power Transfer (APT).
  • To develop and validate a novel, cost-effective, 3D-printable peripheral clamp.

Main Methods:

  • Integration of an impedance matching circuit into the Mason circuit model.
  • Analysis of fixed constraints' effects on piezoelectric transducer sound pressure and output voltage.
  • Design, fabrication, and characterization of a 3D-printable equilateral triangular peripheral clamp.
  • Experimental and simulation-based validation of the clamp's impedance and distance characteristics.

Main Results:

  • The integrated impedance matching circuit improved system performance.
  • Fixed constraints were shown to impact sound pressure and output voltage.
  • The novel peripheral clamp demonstrated effective impedance and distance characteristics.
  • Experimental and simulation results consistently confirmed the clamp's efficacy.

Conclusions:

  • Impedance matching is crucial for optimizing APT systems in air.
  • The proposed 3D-printable clamp offers a practical and cost-effective solution.
  • This research provides valuable insights for enhancing APT system performance across various applications.