Anechoic structural elements and chamber

Details Anechoic structural elements and chamber Anechoic structural elements and chamber

1992-07-01

1994-05-31

Gellner, Michael L.

Acoustics

Sound-modifying means

Sound absorbing panels

181286, 181293, 181294, 181295, E04B 100

Patent

active

053171136

ABSTRACT:
A substantially enclosed sound absorbing unit for an anechoic chamber is disclosed. The sound absorbing unit includes a substantially flat panel member comprising a layer of sound absorptive material. An anechoic member is disposed adjacent to the flat panel member. The anechoic member is disposed adjacent to a base and a generally spaced apart sound transparent wall member. The wall member includes a layer of sound absorptive material and a cover sheet made of perforated, substantially sound reflective material. The free space of the perforated cover sheet is at least 7 percent of the total area of the cover sheet.

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Industrial Acoustics Company, "Anechoic Chambers", 1976.

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