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      • Department of Electrical and Electronics Engineering
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      A fast method of calculating diffraction loss between two facing transducers

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      Author(s)
      Atalar, Abdullah
      Date
      1988
      Source Title
      IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
      Print ISSN
      0885-3010
      Publisher
      IEEE
      Volume
      35
      Issue
      5
      Pages
      612 - 618
      Language
      English
      Type
      Article
      Item Usage Stats
      209
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      Abstract
      A fast method of calculating the diffraction loss between two facing circular ultrasonic transducers of unequal size is presented. This problem is directly applicable for minimization of diffraction loss in acoustic lens design. Graphs for amplitude and phase are presented that can be used to design lenses with the optimal transducer size for minimum diffraction loss. The theory is extended to include the diffraction loss determination in anisotropic materials. The results are in good agreement with previous experimental and theoretical results of the equal transducer size case. The effect of diffraction on pulsed excitation is also treated.
      Keywords
      Mathematical techniques -- Integral Equations
      M athematical transformations -- Fast Fourier Transforms
      Ultrasonic waves -- Diffraction
      Acoustic lens design
      Circut ultrasonic transducers
      Diffraction loss
      Ultrasonic transducers
      Permalink
      http://hdl.handle.net/11693/26271
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/58.8039
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      • Department of Electrical and Electronics Engineering 3702
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