Control of the Acoustic Scattering Characteristics of a Rigid Sphere by Surface Loading
作者:
T. B. A. Senior,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1965)
卷期:
Volume 37,
issue 3
页码: 464-475
ISSN:0001-4966
年代: 1965
DOI:10.1121/1.1909352
出版商: Acoustical Society of America
数据来源: AIP
摘要:
The problem of an acoustic wave incident on a rigid sphere “loaded” in a narrow azimuthal region is considered. The solution appears as the superposition of the field scattered by the unloaded sphere and that radiated by an active slot coincident with the load, with the radiation strength of the slot related to the loading characteristics in the combined problem. By varying the loading impedance, wide degree of control over the scattering behavior of the sphere can be achieved even when only “passive” loads are permitted. Numerical results are presented.
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