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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
Limp Membrane, 5 Kg/m2 75mm Air 50mm Porous Absorbent, 22000 Pa.s/m2 75mm Air Rigid backing • Absorber 2 Limp Membrane, 5 Kg/m2 150mm Air 50mm Porous Absorbent, 22000 Pa.s/m2 Rigid backing • Absorber 3 Limp Membrane, 5 Kg/m2 50mm Porous Absorbent, 22000 Pa.s/m2 150mm Air Rigid backing |
Absorber 1: Peak absorption at 57.2Hz. Damping=0.71 (low)
Absorber 2: Peak absorption at 56.7Hz. Damping=0.11 (very low)
Absorber 3: Peak absorption at 57.2Hz. Damping=1.93 (high)
Absorber 2: Peak absorption at 56.7Hz. Damping=0.11 (very low)
Absorber 3: Peak absorption at 57.2Hz. Damping=1.93 (high)