GRAS microphone improves aero-acoustic testing

Twinsburg, Ohio – G.R.A.S. Sound and Vibration, developer of measurement microphones and related acoustic equipment, offers the compact 67TS-1-CL flush mount turbulence screen microphone kit for improved aero-acoustic testing within wind tunnels.

 

As noise has a considerable effect on comfort and economy within an airplane or vehicle, G.R.A.S.’ simple and reliable flush-mount turbulence screen microphone kit is specially developed for accurate testing within wind tunnels in the near or far field, and at various wind speeds. By attenuating the hydrodynamic component of turbulence up to as much as 25dB, the acoustic signals of interest can now be identified and diagnosed with a much more reliable resolution. 

 

The turbulence screen integrates flush and recessed mounting techniques with a special wire mesh into a single unit with several mounting options. Key benefits include very high induced flow noise reduction, extremely low acoustic attenuation, low installation height, front or rear mounting options, and flush-mount and standard microphone accommodation.

 

The 67TS-1-CL kit includes the 47BX 1/4" flush-mount microphone set with the ability to fit into tight/confined spaces with an installation height of less than 10mm.