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Acoustic Chambers

Our NVH section is composed of several performant rooms, which all can complement one another:

 

3 Coupled reverberating rooms(CR):

  • Volume: 76 m³, 210 m³, 136 m³
  • Interfacing one another (transparency measures) 
  • 1 room interfacing the semi-anechoic chamber (acoustic insulation measures)
  • Aquisition system: PAK Müller-BBM
     

 1 Semi-anechoic chamber (CSA):

  • Volume: 410 m³
  • Background noise: 15 db
  • Crossover frequency: 70 Hz
  • Equipped with a chasis dynamometer - speed up to 200 km/h (83 kW / 3340 Nm per roller)
  • Aquisition system: PAK Müller-BBM
 
     

 

1 full anechoic powertrain bench:

  • 300kW / 1400Nm / 8000rpm, automated by PUMA V5.52
  • Background noise: 17 db
  • Crossover frequency: 70 Hz
  • Aquisition system: PAK Müller BBM
 

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