Micro-perforated metal panel, 10 cm air cavity

PTB reference data

Original description

Material properties

Wall distance: 10 cm

ISO 354 – reverberation chamber

αw

0.33

αp nach ISO 11654

125 Hz

0.10

250 Hz

0.25

500 Hz

0.65

1000 Hz

0.55

2000 Hz

0.30

4000 Hz

0.15

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Method (354): Measured