Finite element and experimental study of composite and 1-D array transducers

Wenkang Qi, Wenwu Cao

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

This paper reports a combined finite element and experimental study of composite and 1-D array transducers. The main properties characterized are the electrical impedance and beampattern. In order to calculate the beampattern of a transducer immersed in water, the pressure distribution and the normal velocity at the interface of water and transducer were calculated by using ANSYS@. These results were then input into the Helmholtz integral to calculate the beampattern. The impedance curve was obtained by performing harmonic analysis using ANSYS@. Related experiments were also conducted to verify these calculated results, good agreement was achieved between the experiments and simulations. Because of the similarity between the structures of 2-2 composite and 1-D array, the same FEA modeling procedure for 2-2 composites was extended to study a 1-D array. Particularly, the cross talk level and directivity of each element in an array were studied.

Original languageEnglish (US)
Pages (from-to)119-130
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3341
DOIs
StatePublished - Dec 1 1998
EventMedical Imaging 1998: Ultrasonic Transducer Engineering - San Diego, CA, United States
Duration: Feb 25 1998Feb 26 1998

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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