Free field measurements of absorption coefficients on square panels of absorbing materials
作者： J.F. Allard , P. Delage
DOI: 10.1016/S0022-460X(85)81212-8
关键词: Absorption (electromagnetic radiation) 、 Free field 、 Square (algebra) 、 Materials science 、 Optics 、 Attenuation coefficient 、 Interferometry 、 Sample (graphics)
摘要: The Kundt interferometer method is not always accurate for absorption coefficient measurements. Free field methods do have the same limitations but effect of sample's finite dimensions has never been studied in detail. A theoretical approach to this topic presented and measurements based on theory are also presented, a sample material which cannot be used.
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Legeay, R Seznec, SUR LA DETERMINATION DES CARACTERISTIQUES ACOUSTIQUES DES MATERIAUX ABSORBANTS 0001-7884. ,vol. 53, ,(1983)
P.J.T. Filippi, Layer potentials and acoustic diffraction Journal of Sound and Vibration. ,vol. 54, pp. 473- 500 ,(1977) , 10.1016/0022-460X(77)90607-1
M. A. Biot, Theory of Propagation of Elastic Waves in a Fluid‐Saturated Porous Solid. I. Low‐Frequency Range The Journal of the Acoustical Society of America. ,vol. 28, pp. 168- 178 ,(1956) , 10.1121/1.1908239
J.F. Allard, A. Aknine, Acoustic impedance measurements with a sound intensity meter Applied Acoustics. ,vol. 18, pp. 69- 75 ,(1985) , 10.1016/0003-682X(85)90007-6
P.J. Dickinson, P.E. Doak, Measurements of the normal acoustic impedance of ground surfaces Journal of Sound and Vibration. ,vol. 13, pp. 309- 322 ,(1970) , 10.1016/S0022-460X(70)80021-9