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An apparatus for accurate measurement of the acoustic impedance of sound-absorbing materials

โœ Scribed by Scott, R A


Book ID
111985451
Publisher
Institute of Physics
Year
1946
Weight
757 KB
Volume
58
Category
Article
ISSN
0370-1328

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Free field surface impedance measurement
โœ J.F. Allard; C. Depollier; P. Guignouard ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 354 KB

## A BS TRA C T A method has been previously worked out by one of the authors, to measure the surface impedance of glasswools and plastic foams in normal and oblique incidence, in free field, with two microphones. Using an improved version of this method, surface impedance measurements of two soun