Exact Computer Modelling: A Tool for the Design of Imaging Transducers

  • R. Lerch
Part of the Acoustical Imaging book series (ACIM, volume 19)

Abstract

The piezoelectric transducer is an essential component of acoustical imaging systems. These transducers have a major influence on the quality of ultrasonic images in diagnostic ultrasound, nondestructive testing, or acoustic microscopy. In recent years, various transducer types have entered the market due to a steadily growing field of applications. For example, medical imaging demands for phased array antennas used in colour flow doppler machines as well as for miniaturized transducers for intracorporal applications. Another trend in medical imaging leads to high resolution systems operating at frequencies above 10 MHz to cover applications, such as imaging of skin deseases. This large diversity of novel transducers demands for a sophisticated transducer development with high standards in respect to quality and rapidness. In order to avoid lengthy and cost-intensive experimental trial and error, a modern transducer development should be based on computer aided design (CAD). The central part of this CAD is transducer modelling, which will be discussed here.

Keywords

Acoustics 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. /1/.
    R. Lerch: “Finite Element Analysis of Piezoelectric Devices by Two-and Three-Dimensional Finite Elements”, IEEE Trans. on Ultras., Ferroel., and Frequency Control, vol. 37, No. 3, 1990, pp. 233–247CrossRefGoogle Scholar
  2. /2/.
    R. Lerch: “Finite Element Analysis of Piezoelectric Transducers”, Proc. IEEE Ultrasonics Symposium, 1988, pp. 643–654Google Scholar
  3. /3/.
    E. Skudrzyk: “The Foundations of Acoustics”, Springer-Verlag, WienGoogle Scholar
  4. /4/.
    P.M. Morse, K.U. Ingard: “Theoretical Acoustics”, McGraw-Hill, New York, 1968, pp. 342Google Scholar
  5. /5/.
    C.A. Brebbia: “Boundary Element Techniques”, Springer-Verlag, 1984CrossRefGoogle Scholar
  6. /6/.
    R. Bausinger, G. Kuhn: “Die Boundary-Element-Methode”, expert-Verlag, 1987Google Scholar
  7. /7/.
    F.S. Foster, J.D. Larson, M.K. Mason, T.S. Shoup, G. Nelson, H. Yoshida: “Development of a 12 element annular array transducer for realtime ultrasoundimaging”, Ultrasound in Med. & Biol., vol. 15, No. 7, 1989, pp.649–659CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • R. Lerch
    • 1
  1. 1.Siemens AGErlangenGermany

Personalised recommendations