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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 (ohne loecher als plattenschwinge)
80mm Porous Absorbent, 3000 Pa.s/m2 50mm Air Limp Membrane, 10 Kg/m2 25mm Porous Absorbent, 3000 Pa.s/m2 Rigid backing • Absorber 2 (mit loechern) 80mm Porous Absorbent, 3000 Pa.s/m2 50mm Air 20mm Perforated Panel, 10mm/50mm (3.14%) 25mm Porous Absorbent, 3000 Pa.s/m2 Rigid backing • Absorber 3 (ohne loecher) 80mm Porous Absorbent, 3000 Pa.s/m2 50mm Air Rigid backing |