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Global Parameters
Air temperature: 20°C
Air pressure: 101325 Pa X Axis: Frequency Range: 20Hz - 20000Hz Scale: logarithmic Resolution: medium Angle of incidence: 0° Porous model: Allard and Champoux (1992) Helmholtz model: Ingard/Allard |
Absorber Parameters
• Absorber 1
10mm Perforated Panel, 10mm/90mm (0.97%) 400mm Porous Absorbent, 5000 Pa.s/m2 Rigid backing • Absorber 2 Limp Membrane, 3 Kg/m2 400mm Porous Absorbent, 5000 Pa.s/m2 Rigid backing • Absorber 3 Limp Membrane, 7.5 Kg/m2 150mm Porous Absorbent, 5000 Pa.s/m2 Rigid backing |
Absorber 1: Peak absorption at 56.0Hz. Damping=6.39 (very high)
Absorber 2: Peak absorption at 47.6Hz. Damping=1.70 (high)
Absorber 3: Peak absorption at 47.8Hz. Damping=0.91 (medium)
Absorber 2: Peak absorption at 47.6Hz. Damping=1.70 (high)
Absorber 3: Peak absorption at 47.8Hz. Damping=0.91 (medium)