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Energy Redistribution in an Ultrasonic Beam Reflected from an Interface

 

作者: James H. Smith,   Richard F. Smith,   M. A. Breazeale,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1971)
卷期: Volume 50, issue 1A  

页码: 105-105

 

ISSN:0001-4966

 

年代: 1971

 

DOI:10.1121/1.1977455

 

出版商: Acoustical Society of America

 

数据来源: AIP

 

摘要:

Schoch has pointed out that an ultrasonic beam incident on a liquid‐solid interface is displaced appreciably when the angle of incidence is such that Rayleigh surface waves are generated on the interface. This theory has been extended by Brekhovskikh. Examination of the reflected beam near this angle using a precision goniometer reveals that the energy is redistributed into multiple beams, one of which may be dominant. Experimental results obtained with a Gaussian amplitude distribution across the incident beam are discussed. [Research supported by the Office of Naval Research.]

 

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