Ultrasonic Diffraction Loss and Phase Change for Broad‐Band Pulses
作者:
Emmanuel P. Papadakis,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1972)
卷期:
Volume 52,
issue 3B
页码: 847-849
ISSN:0001-4966
年代: 1972
DOI:10.1121/1.1913188
出版商: Acoustical Society of America
数据来源: AIP
摘要:
The effective diffraction loss and phase change in the field of broad‐band transducers is computed in terms of the normalized distanceSc=zλc/a2at the center frequency of the pulse. Diffraction corrections for attenuation and velocity are explained, and their limitations stated for broad‐band pulses. It is shown that the corrections are functions of bandwidth as well as ofSc.
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