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Title: Impedance evaluation from pressure measurements near grazing incidence for non locally reacting porous layers
Authors: Allard, Jean Fran├žois ×
Gareton, V
Henry, M
Jansens, Gert
Lauriks, Walter #
Issue Date: Jul-2003
Publisher: S hirzel verlag
Series Title: Acta acustica united with acustica vol:89 issue:4 pages:595-603
Abstract: An asymptotic expression for the monopole field reflected by non locally reacting porous layers has been obtained previously by Allard et al. [1]. A simplified version similar to the one obtained by Chien and Soroka [2] can be used to measure the surface impedance of thin layers from pressure measurements around grazing incidence. Simulations and measurements are performed on a material of medium flow resistivity for two thicknesses and frequencies up to 5 kHz, to test the performances of the method under more general conditions.
URI: 
ISSN: 1610-1928
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
× corresponding author
# (joint) last author

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