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Acoustics
Sound power is an important parameter for characterizing the noise emissions of machines, devices, and systems, as it quantifies the absolute power of a sound source regardless of its acoustic environment. A common method for determining sound power involves measurements under controlled conditions in the reverberation room, where the sound source operates within a diffuse sound field. The sound power is derived from the sound pressure measurements and corresponds to accuracy class 1. These measurements are carried out in third-octave bands according to DIN EN ISO 3741, covering an extended frequency range from 50 Hz to 10 kHz. Whether ventilation technology, HVAC technology, or other noise sources, the reverberation room facilitates detailed investigations using both direct and comparative methods. Its vibration-damped design and connection to an anechoic chamber provide additional flexibility to simulate a wide range of acoustic scenarios.
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Measurement | Sound power |
Standard | DIN EN ISO 3741 |
Measurement object | Machinery and equipment, for example of ventilation and air-conditioning systems, air terminals and other noise sources |
Technical data
Floor area | 60 m2 |
Room volume | 392 m3 |
Entrance door (H × W) | 1,9 m × 2,4 m |
Special features
Connection to a semi-anechoic 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 |