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

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Triple-resonant transducers.

Stephen C Butler¹

¹Naval Undersea Warfare Center, Newport, RI, USA. stephen.c.butler1@navy.mil

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|June 22, 2012

Summary

This summary is machine-generated.

Two novel triple-resonant transducers (TRTs) offer a wider transmit response than conventional Tonpilz transducers. These designs utilize coupled resonances for enhanced performance in acoustic applications.

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Area of Science:

Acoustic Engineering
Materials Science
Mechanical Engineering

Background:

Conventional Tonpilz-type transducers are widely used but have limitations in transmit response bandwidth.
Developing transducers with improved performance is crucial for advanced sonar and underwater acoustic systems.

Purpose of the Study:

To analyze and present two novel multiple-resonant transducer designs.
To demonstrate that these new designs offer a wider transmit response compared to conventional Tonpilz transducers.

Main Methods:

Detailed analysis of two triple-resonant transducer (TRT) designs.
TRTs are Tonpilz-type longitudinal vibrators featuring three coupled resonances.
Design 1: Mechanical series arrangement with multiple masses, springs, and a radiating head mass.
Design 2: Similar arrangement with an added quarter-wave matching layer of poly(methyl methacrylate).

Main Results:

Both TRT designs successfully produced a wider transmit response.
Prototype transducer elements were fabricated, demonstrating proof-of-concept for both designs.
The analysis confirmed the enhanced performance characteristics of the TRTs.

Conclusions:

The developed triple-resonant transducers represent a significant advancement over conventional Tonpilz designs.
These novel transducers offer a wider transmit response, beneficial for various acoustic applications.
Further research and development of TRTs are warranted for practical implementation.