Acoustics Laboratory

Since 2020, the department has had the new machine acoustics hall on the TU Lichtwiese campus. Three acoustics laboratories offer the possibility for acoustic investigations on technical products of all kinds according to the current state of the art. Specifically, an anechoic half-room, a reverberation room and an anechoic full room have been set up. This makes it possible to experimentally determine sound pressures, sound intensities, sound power, sound absorption and transmission coefficients as well as directional characteristics. In addition, a large test hall offers us a wide range of opportunities for research and collaboration with partners. The acoustics laboratories are a unique feature at TU Darmstadt and in the entire South Hesse region.

 

 

 

  • Frequency range: ≤100 Hz to ≥12.500 Hz
  • Dimensions: 6,7 m x 6,2 m
  • Wedge absorber made of mineral fiber with fabric cover
  • Wall duct to the outside
  • Walking net, max. 1,5 kN/m²
  • Walking grid, max. 2,5 kN/m²
  • Wall and ceiling hooks

Areas of application

  • For sound power, sound pressure and sound transmission measurements (receiver room).

 

 

  • Frequency range: 100 Hz to 20.000 Hz
  • Dimensions: 10 m x 11 m
  • SONEX-WF flat absorber
  • Water supply and drainage
  • Signal line to the control room
  • 2-ton crane
  • Shaft feed-throughs for the realization of a gearbox test bench
  • Test opening for sound transmission measurements
  • Exhaust gas extraction, CO monitor
  • Wall and ceiling hooks with 500N load capacity each

Areas of application

  • For sound power, sound pressure and sound transmission measurements (receiver room).

 

  • Volume: 209 m³
  • Dimensions: 6,7 m x 4,6 m
  • Setting of a diffuse sound field via two adjacent, convexly curved walls, two straight but not parallel walls and a 15° inclined ceiling
  • Panel resonators for adjusting the reverberation time

Areas of application

  • Sound power, sound absorption and sound transmission measurement (transmission room).

 

 

Measurement technology
  • accelerometers
  • microphones
  • sound intensity probes
  • force sensors (mono- and triaxial)
  • 3D scanning laser Doppler vibrometer
  • acoustic camera with planar and spherical array (gfai tech)
  • 1D scanning laser Doppler vibrometer
Accessories
  • sound level meters
  • microphone holders
  • acoustic calibrators
  • Microsoft HoloLens 2 (to support sound power measurements)
 Measurement data acquisition / analysis
  • Siemens SCADAS LMS (40 channels)
  • Soundbooks from Sinus Messtechnik
  • measurement cards from National Instruments and Roga
  • dspace: MicroLabBox
  • measurement acquisition system imc CRONOSflex, licenses for the software for data acquisition and test bench monitoring (imc STUDIO) and for measurement data analysis (imc FAMOS)
 Sources of excitation
  • electrodynamic shakers
  • impulse hammers
  • sound sources

Software for research purposes
  • Ansys
  • Abaqus
  • LabVIEW
  • Artemis
  • Comsol Multiphysics

If you are interested in working with us, e.g. as part of a research project or an industrial contract , please do not hesitate to get in touch with us.

  Name Working area(s) Contact
Ali Movahed M.Sc.
+49 6151 16-23653
L1|01 262
Dr.-Ing. Robert Feldmann
Deputy Head of Institute
+49 6151 16-23512
L1|01 262

The special interior fit-out of the acoustic laboratories was financially supported by the European Regional Development Fund (ERDF) of the European Union. The funding covered the user-specific interior fit-out of these three laboratories, i.e. the special interior fit-out with sound-absorbing wall and ceiling panels, special doors, technical interior fittings and a crane in the anechoic half-space.