Finite element and experimental study of impedance matching layer optimization

Mark R. Draheim, Wen Wu Cao

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

5 Scopus citations

Abstract

An important part of ultrasonic transducer design is the optimization of the acoustic impedance matching layer. Since there is a large acoustic impedance mismatch between piezoceramic and human tissue the majority of the acoustic energy from the transducer would be reflected without the use of an intermediate matching layer. This matching layer can improve transducer performance; particularly the transit/receive sensitivity. We report here a study of the optimum matching layer thickens of a transducer using both experimental results and a finite element model. For reliable input parameters we have made a set of 0 - 3 alumina-epoxy composites and measured the material properties. The method used to make the composite is similar to that described by Grewe.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages135-139
Number of pages5
ISBN (Print)081942448X
StatePublished - Dec 1 1997
EventMedical Imaging 1997: Ultrasonic Transducer Engineering - Newport Beach, CA, USA
Duration: Feb 27 1997Feb 28 1997

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume3037
ISSN (Print)0277-786X

Other

OtherMedical Imaging 1997: Ultrasonic Transducer Engineering
CityNewport Beach, CA, USA
Period2/27/972/28/97

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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  • Cite this

    Draheim, M. R., & Cao, W. W. (1997). Finite element and experimental study of impedance matching layer optimization. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 135-139). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 3037). Society of Photo-Optical Instrumentation Engineers.