Fraunhofer Institute for Building Physics
Fraunhofer Institute for Building Physics

Acoustics

Sound power in an anechoic chamber

Measurement Sound power (enveloping measurement surface), sound intensity, localization of sound sources
Standard DIN EN ISO 3745
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) 9,3 m × 10,4 m × 10,3 m
Room volume 1090 m³
Entrance door (H × W) 1,89 m × 2,34 m


Special feature

Removable assembly grating as working area 4.0 × 4.0 m area, 5000 N/m² loading capacity

More information

  • Room-in-room construction with very low background noise
  • Vibrational isolation by using separate basement and steel springs
  • Lower cut-off frequency 80 Hz (according to standard)
  • Ventilation system

Anechoic Chamber

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