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Acoustic Transmission Line: Some Impedance Properties

 

作者: Martin Greenspan,  

 

期刊: The Journal of the Acoustical Society of America  （AIP Available online 1972）
卷期: Volume 52, issue 1B  

页码: 455-457

 

ISSN:0001-4966

 

年代: 1972

 

DOI:10.1121/1.1913120

 

出版商: Acoustical Society of America

 

数据来源: AIP

 

摘要:

The imaginary part of the effective density of a fluid or of a viscoelastic material is zero. The contrary notion arises from an inadequate definition of characteristic impedance. The attenuation cannot exceed 2π Np per wavelength.

 

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