Nearfield effects in acoustic scattering
作者:
Roger H. Hackman,
M. F. Werby,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1984)
卷期:
Volume 75,
issue 3
页码: 1001-1003
ISSN:0001-4966
年代: 1984
DOI:10.1121/1.390659
出版商: Acoustical Society of America
关键词: sound waves;scattering;solids
数据来源: AIP
摘要:
We investigate the scattering of the radiation from an acoustic point source by a solid, elastic prolate spheroid at a variety of transducer–scatterer separations. We find that the most important effect, when contrasted to the plane‐wave limit, is an increase in scattering strength (with decreasing transducer–scatterer separation) associated with the 1/rvariation of the incident field and the finite size of the scatterer. We use the results of this investigation to formulate a rough criterion for establishing the farfield region in scale model scattering experiments in the low‐frequency region.
点击下载:
PDF
(435KB)
返 回