|
|
Global Parameters
Air temperature: 20°C
Air pressure: 101325 Pa X Axis: Frequency Range: 20Hz - 20000Hz Scale: logarithmic Resolution: high Angle of incidence: 0° Porous model: Allard and Champoux (1992) Helmholtz model: Ingard/Allard |
Absorber Parameters
• Absorber 1
18mm Perforated Panel, 6mm/100mm (0.28%) 20mm Air 280mm Porous Absorbent, 4000 Pa.s/m2 Rigid backing • Absorber 2 12mm Perforated Panel, 4mm/100mm (0.13%) 20mm Air 180mm Porous Absorbent, 4000 Pa.s/m2 Rigid backing • Absorber 3 20mm Perforated Panel, 8mm/100mm (0.50%) 20mm Air 460mm Porous Absorbent, 4000 Pa.s/m2 Rigid backing |
Absorber 1: Peak absorption at 31.0Hz. Damping=1.64 (high)
Absorber 2: Peak absorption at 31.4Hz. Damping=2.20 (high)
Absorber 3: Peak absorption at 30.9Hz. Damping=1.82 (high)
Absorber 2: Peak absorption at 31.4Hz. Damping=2.20 (high)
Absorber 3: Peak absorption at 30.9Hz. Damping=1.82 (high)