Absorption limit of MPA

MAA Dah-You. Absorption limit of MPA[J]. ACTA ACUSTICA, 2003, 28(6): 561-562. DOI: 10.15949/j.cnki.0371-0025.2003.06.014

Citation:

MAA Dah-You. Absorption limit of MPA[J]. ACTA ACUSTICA, 2003, 28(6): 561-562. DOI: 10.15949/j.cnki.0371-0025.2003.06.014

Citation:

MAA Dah-You. Absorption limit of MPA[J]. ACTA ACUSTICA, 2003, 28(6): 561-562. DOI: 10.15949/j.cnki.0371-0025.2003.06.014

Abstract

Half absorption band width of MPA increases rapidly with its resistance, but the absorption coefficient might be low at half absorbtion. If absorbtion coefficient of 0.5 is taken as the lower limit, the overall absorption increases slower with the increases of resistance, but performence is bether.

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