On the applicability of Kramers-Kronig relations for ultrasonic attenuation obeying a frequency power law
In the recent literature concern has been raised regarding the validity of Kramers-Kronig relations for media with ultrasonic attenuation obeying a frequency power law. It is demonstrated, however, that the Kramers-Kronig dispersion relations for application to these types of media are available. Th...
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Published in | The Journal of the Acoustical Society of America Vol. 108; no. 2; p. 556 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
United States
01.08.2000
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Online Access | Get more information |
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Summary: | In the recent literature concern has been raised regarding the validity of Kramers-Kronig relations for media with ultrasonic attenuation obeying a frequency power law. It is demonstrated, however, that the Kramers-Kronig dispersion relations for application to these types of media are available. The developed dispersion relations are compared with measurements on several liquids, and agreement is found to better than 1 m/s over the experimentally available bandwidth. A discussion regarding the validity of these dispersion relations, in particular how the dispersion relations relate to the so-called Paley-Wiener conditions, forms the conclusion. |
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ISSN: | 1520-8524 |
DOI: | 10.1121/1.429586 |