Sound power in a semi-anechoic chamber
| Measurement |
Sound power (enveloping measurement surface), sound intensity, localization of sound sources |
| Standards |
DIN EN ISO 3745, DIN EN ISO 3744
|
| Measurement object |
Machinery and equipment, for example of ventilation and air-conditioning systems, and other noise sources |
Technical data
| Free room size (L × W × H) |
19,43 m × 5,25 m × 6,17 m
|
| Room volume |
629 m3
|
| Entrance door (H × W) |
1,90 m × 2,37 m
|
Special features
Connection to a reverberation room
|
Measurement of sound insulation and sound absorption of elements between reverberation and anechoic room |
| Size of the connecting door (measuring surface) |
3,80 m × 2,35 m |
Fraunhofer Institute for Building Physics