DocumentCode
1656302
Title
Nonuniform velocity distribution on the surface of ultrasonic transducers as a source of non-diffracting beams
Author
Kielczynski, P. ; Pajewski, W. ; Szalewski, M.
Author_Institution
Inst. of Fundamental Technol. Res., Acad. of Sci., Warsaw, Poland
fYear
1992
Firstpage
711
Abstract
The exact formulae for the transfer function in the case of circular Bessel and Gaussian transducers have been developed. The computer program and analytical formulae obtained permit the calculation of the directivity patterns in the near field and far field, respectively. Satisfactory agreement of calculated and measured directivity patterns is noted
Keywords
acoustic arrays; acoustic field; acoustic radiators; transfer functions; ultrasonic transducers; ultrasonic velocity; Bessel transducers; Gaussian transducers; circular transducers; computer program; directivity patterns; far field; near field; nonuniform velocity distribution; source of nondiffracting beams; surface; transfer function; ultrasonic transducers; Shape; Ultrasonic transducers;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location
Tucson, AZ
Print_ISBN
0-7803-0562-0
Type
conf
DOI
10.1109/ULTSYM.1992.275909
Filename
275909
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