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A platform for research: civil engineering, architecture and urbanism
SOUND ABSORBING PANEL WITH WEDGE-SHAPED CROSS-SECTION MICRO-SLITS
An acoustical panel has a multiplicity of short micro-slits, about 10 mm in length each, with each micro-slit having a wedge shaped cross-section in which the opening on the front side of the panel is wider than the opening on the rear side of the panel by a factor of about 2 to effectively absorb sound frequencies in the range of 250-2000 Hz, with the micro-slits greater than 4%. The micro-slits are spaced apart less than 5 mm and several different patterns of micro-slits may be employed including micro-slits that are straight as well as arcuate or some combination of straight and arcuate. The area of the micro-slits on the front surface of the panel exceeds 4%.
SOUND ABSORBING PANEL WITH WEDGE-SHAPED CROSS-SECTION MICRO-SLITS
An acoustical panel has a multiplicity of short micro-slits, about 10 mm in length each, with each micro-slit having a wedge shaped cross-section in which the opening on the front side of the panel is wider than the opening on the rear side of the panel by a factor of about 2 to effectively absorb sound frequencies in the range of 250-2000 Hz, with the micro-slits greater than 4%. The micro-slits are spaced apart less than 5 mm and several different patterns of micro-slits may be employed including micro-slits that are straight as well as arcuate or some combination of straight and arcuate. The area of the micro-slits on the front surface of the panel exceeds 4%.
SOUND ABSORBING PANEL WITH WEDGE-SHAPED CROSS-SECTION MICRO-SLITS
D'ANTONIO PETER (author) / MADISON JEFF (author)
2018-03-29
Patent
Electronic Resource
English
Sound absorbing panel with wedge-shaped cross-section micro-slits
| European Patent Office | 2018