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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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