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arXiv · 1411.4374

Pulse-echo method can't measure wave attenuation accurately

Barnana Pal
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Abstract

A number of techniques with different degrees of accuracies have been devised for the measurement of acoustic wave attenuation in solids and liquids. Still, a wide variation is observed in the attenuation values in different materials reported in the literature. Present numerical study based on a 'propagating wave' model analysis clearly shows that the attenuation constant obtained from exponential fitting of the echo heights in pulse-echo method differs from the exact value of intrinsic attenuation in the medium, even in the ideal situation of plane wave propagation without diffraction, dispersion or scattering.

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BibTeXRIS

Barnana Pal. 2015-03-11. Pulse-echo method can't measure wave attenuation accurately. https://doi.org/10.1016/j.ultras.2015.03.005

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