Acoustical absorber array

Details Acoustical absorber array Acoustical absorber array

1998-09-22

2000-04-25

Dang, Khanh

Acoustics

Sound-modifying means

Housing or enclosure

181202, 181207, G10K 1104

Patent

active

060532750

ABSTRACT:
A plurality of acoustical absorption elements are mounted in a two-dimensional spaced array on an acoustically reflective surface of an machinery enclosure, in such a manner as to expose portions of the reflective surface between neighboring elements. The elements are preferably of a substantially standard size and shape in order to enhance production and inventory efficiency, although materials of various thickness may be provided to accommodate tuning for specific frequencies to be absorbed.

REFERENCES:
patent: 4195713 (1980-04-01), Hagbjer et al.
patent: 4215763 (1980-08-01), Pasko
patent: 4778028 (1988-10-01), Staley
Area and Pattern Effects in the Measurement of Sound Absorption by John Parkinson; Journal of the Acoustical Society; Jul. 1930; p. 112-22.

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