Design and realization of frequency agile piezoceramic transducers

Julien Bernard, George A. Lesieutre

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

The variations in the first resonance frequencies of underwater acoustic transducers such as flexural piezoceramic bars and disks are discussed. The theoretical investigations established the dependence of bandwidth on the length to thickness ratio of the transducer, the type of piezoceramic material and coupling, and piezoceramic thickness and coverage. The measurements of frequency shifts of a transducer depicted the existence of a polarization switch due to combined compressive stress and electric field effects.

Original languageEnglish (US)
Pages (from-to)299-315
Number of pages17
JournalCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume2
StatePublished - Jan 1 2000

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Transducers
Acoustic transducers
Electric field effects
Underwater acoustics
Compressive stress
Switches
Polarization
Bandwidth

All Science Journal Classification (ASJC) codes

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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AB - The variations in the first resonance frequencies of underwater acoustic transducers such as flexural piezoceramic bars and disks are discussed. The theoretical investigations established the dependence of bandwidth on the length to thickness ratio of the transducer, the type of piezoceramic material and coupling, and piezoceramic thickness and coverage. The measurements of frequency shifts of a transducer depicted the existence of a polarization switch due to combined compressive stress and electric field effects.

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JO - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

JF - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

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