An analysis of laminated piezoelectric infinite plate for broadband biomedical ultrasound transducer design

Daniel H. Cortes, Sam M. Mukdadi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work investigates the use of frequency spectrum analysis of waveguide propagation in multi-layered anisotropic piezoelectric transducers. A semi-analytical finite-element analysis (SAFE) is used to model the transducer as a piezoelectric infinite plate. Dispersion curves, group velocities and displacement frequency spectra can be obtained for any multilayered piezoelectric plate. Stress-free boundary conditions were assumed for all analyses. Results for open and closed circuit boundary conditions were analyzed. Zero-Group-Velocity (ZGV) frequencies of high-order waveguide modes were observed to provide multi-resonant displacement frequency spectrum. Comparison of numerical and experimental results shows a good agreement between peak and off-peak values of the displacement spectrum. Results showed that optimization of layered structure may provide an efficient means for generating multi-thickness (ZGV) waveguide modes, thus increasing the bandwidth of harmonic ultrasound transducers for contrast imaging.

Original languageEnglish (US)
Title of host publicationBiomedical and Biotechnology Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages337-340
Number of pages4
ISBN (Electronic)0791842967
DOIs
StatePublished - Jan 1 2007
EventASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, United States
Duration: Nov 11 2007Nov 15 2007

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume2

Other

OtherASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
CountryUnited States
CitySeattle
Period11/11/0711/15/07

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Engineering(all)

Fingerprint Dive into the research topics of 'An analysis of laminated piezoelectric infinite plate for broadband biomedical ultrasound transducer design'. Together they form a unique fingerprint.

  • Cite this

    Cortes, D. H., & Mukdadi, S. M. (2007). An analysis of laminated piezoelectric infinite plate for broadband biomedical ultrasound transducer design. In Biomedical and Biotechnology Engineering (pp. 337-340). (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 2). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2007-42289