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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, 2.9 Kg/m2 30mm Air 260mm Porous Absorbent, 7000 Pa.s/m2 Rigid backing • Absorber 2 Limp Membrane, 2.9 Kg/m2 30mm Air 50mm Porous Absorbent, 12000 Pa.s/m2 200mm Air Rigid backing • Absorber 3 Limp Membrane, 2.9 Kg/m2 30mm Air 270mm Porous Absorbent, 12000 Pa.s/m2 Rigid backing • Absorber 4 Limp Membrane, 2.9 Kg/m2 30mm Air 50mm Porous Absorbent, 12000 Pa.s/m2 220mm Porous Absorbent, 7000 Pa.s/m2 Rigid backing |
Absorber 1: Peak absorption at 57.1Hz. Damping=1.35 (high)
Absorber 2: Peak absorption at 63.6Hz. Damping=0.93 (medium)
Absorber 3: Peak absorption at 60.9Hz. Damping=2.13 (high)
Absorber 4: Peak absorption at 57.5Hz. Damping=1.80 (high)
Absorber 2: Peak absorption at 63.6Hz. Damping=0.93 (medium)
Absorber 3: Peak absorption at 60.9Hz. Damping=2.13 (high)
Absorber 4: Peak absorption at 57.5Hz. Damping=1.80 (high)