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Measurements of the absorption of sound by porous rubber wallcovering layers, part II

โœ Scribed by C.W. Kosten; C. Zwikker

Publisher
Elsevier Science
Year
1941
Weight
428 KB
Volume
8
Category
Article
ISSN
0031-8914

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โœฆ Synopsis

In this second part the properties are described of homogeneous light sponge-rubber layers, coated with a very light non-porous surface-layer. In general, the results agree satisfactorily with theory. Low specific weight as well as a rather free mobility of the air (proper air-resistance of the interior) turn out to be indeed advantageous. Materials possessing very satisfactory properties have already been obtained in this way. Measurements of reverberation yield slightly more favourable results, especially for higher frequencies. ยง 2. Inter/erence-measurements carried out on coated layers. In fig.

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