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Array Configuration to Eliminate Grating Lobes

  • Shin-ichiro Umemura
  • Kageyoshi Katakura
Part of the Acoustical Imaging book series (ACIM, volume 17)

Abstract

A new configuration of ultrasound array transducers is proposed whose element boundaries interlock in a fine pattern to eliminate grating lobes from the acoustic field without using a very large number of array elements. Two dimensional acoustic fields produced by interlocking element 3.5 MHz array transducers are computer-simulated. These acoustic fields are compared with those from the corresponding conventional array transducer with straight-line element boundaries. The new configuration reduces grating lobe intensity by 20 dB in a round trip acoustic field and virtually eliminates grating lobes.

Keywords

Piezoelectric Material Acoustic Field Element Array Main Lobe Array Transducer 
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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References

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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Shin-ichiro Umemura
    • 1
  • Kageyoshi Katakura
    • 1
  1. 1.Central Research LaboratoryHitachi Ltd.Kokubunji, TokyoJapan

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