The Sound Field of a StraubelX‐Cut Crystal
作者:
E. W. Samuel,
R. S. Shankland,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1950)
卷期:
Volume 22,
issue 5
页码: 589-592
ISSN:0001-4966
年代: 1950
DOI:10.1121/1.1906656
出版商: Acoustical Society of America
数据来源: AIP
摘要:
The sound beam generated in a liquid by a 7.5 megacycle StraubelX‐cut quartz crystal has been investigated by the phenomenon of streaming. The streaming patterns in carbon tetrachloride have been determined by measuring the velocities of sugar particles which have very nearly the same density as the liquid. The velocity distributions produced by a cylindrical sound beam in liquid contained a concentric cylindrical tank are found to be in good agreement with those predicted by Eckart's solution of the hydro‐dynamical flow equations. Comparison measurements with squareX‐cut quartz crystals of the same frequency give poor agreement with theory. Since Eckart's analysis assumes uniform sound intensity across the beam, these experiments indicate that the sound beam radiated by a Straubel cut crystal is very uniform.
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