Radiation force on a spherical object in the field of a focused cylindrical transducer
作者:
Xucai Chen,
Robert E. Apfel,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1997)
卷期:
Volume 101,
issue 5
页码: 2443-2447
ISSN:0001-4966
年代: 1997
DOI:10.1121/1.418539
出版商: Acoustical Society of America
数据来源: AIP
摘要:
An exact solution of the radiation force on a spherical object, when positioned on the acoustic axis of a cylindrical transducer, is provided. The solution is valid for any type of sphere of any size. The radiation force function allows the calibration of high-frequency focused ultrasound fields from radiation force measurements and expands the utility of the elastic sphere radiometer developed by Dunn et al. [Acustica38, 58–61 (1977)]. Numeral results reveal an oscillatory behavior of the radiation force function for small spheres near the transducer surface and this behavior may present an opportunity for particle sorting based on the mechanical properties of the particle and other types of manipulation.
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