A fast method of calculating diffraction loss between two facing transducers
Author(s)
Date
1988Source 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
ArticleItem 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 EquationsM athematical transformations -- Fast Fourier Transforms
Ultrasonic waves -- Diffraction
Acoustic lens design
Circut ultrasonic transducers
Diffraction loss
Ultrasonic transducers