MetalLow-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter www.ibp.fhg.de/rata
Fraunhofer IBP VPR-A1 compound plate resonator with ISO-Bond filling
VPR – A1 with Caruso ISO-Bond filling
PTB reference data
Original description
Fraunhofer IBP VPR-A1 compound plate resonator with ISO-Bond filling
Material properties
Manufacturer: Fraunhofer IBP
Thickness: 100 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.56
Frequency values
αp nach ISO 11654
| f (Hz) | 63 | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|---|
| αp | 0.95 | 1.05 | 0.85 | 0.60 | 0.35 | 0.25 |
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Method (354): Measured