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On the Linearity of Leaky Lamb Waves' Damping Dependence on the Impedance Difference Between Two Liquids Separated by a Thin Solid Plate

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When a plate is separating two different water-like liquids, the real part of the ultrasonic Lamb wave pole is almost independent of the liquids, whereas the imaginary part highly depends on the physical difference between the two liquids. It is found that this dependence possesses linear characteristics if both liquids are realistic. If one of the liquids is unrealistic, then the dependence does not obey this linearity anymore. The study is limited to the vast majority of liquids having an acoustic impedance comparable to that of water and enables a deterministic resolution of the reliability of measured or assumed liquid properties.
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Document Type: Research Article

Publication date: November 1, 2007

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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