Origin of Anomalous Behavior in Transducers Used in Acoustical Imaging

  • B. Delannoy
  • C. Bruneel
Part of the Acoustical Imaging book series (ACIM, volume 10)


Good design of the transducer arrays frequently used in acoustic imaging devices like those reported by a number of authors(1–8) is of major importance for obtaining good images after reconstruction. This proves even more crucial if one tries to get very good resolution, with a correspondingly small spatial period, say of the order of one acoustic wavelength, of the array. The major drawback of the coupling which then arises between neighbouring transducers is a narrowing of their radiation pattern. This leads in turn to a decrease of their angular aperture together with a degradation of the lateral spatial resolution of the image, or a narrowing of the scanning angle in sector scan devices like those designed by some authors (9–10).


Radiation Pattern Anomalous Behavior Lamb Wave Main Lobe Transducer Array 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • B. Delannoy
    • 1
  • C. Bruneel
    • 1
  1. 1.Laboratoire D’Opto-Acousto-Electronique- ERA CNRS N° 593Universite de ValenciennesValenciennes CedexFrance

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