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Other means of vibro-acoustic testing

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means of vibro-acoustic testing 2
isolation test booth
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Other means of vibro-acoustic testing

Insulation booth

The simplest way to characterise the acoustic insulation of an entity involves measuring the difference between the noise level upstream and the noise level downstream (loss through transmission) when crossed by a sound wave.

dB Vib Ingenierie designs special booths for testing your small samples. The booths consist of a transmission chamber and a receiving chamber.  The chambers are separated by an open panel for receiving the sample.

 

 

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The thick insulation of the booth prevents the noise generated on emission from impacting on the external environment.  The panel separating the two chambers needs even thicker insulation so that the noise transmitted from one chamber to the other only passes through the tested sample. Very thick additional parts can be made on a case-by-case basis for receiving the samples.

The design of the dBVib insulation testing booths is specific to your requirements:

  • Level of insulation of the tested sample and noise level on emission
  • Handling device
  • Hydraulic or pneumatic actuators
  • Hoist
  • Casters
  • Access hatches and windows
  • Sample size

dB Vib Ingenierie designs and produces facilities for vibro-acoustic testing for all types of  applications such as wind tunnels (ECL Lyon, UTC Compiègne) or specific installations for measuring automotive equipment (e.g. Renault) or others.

Our collaboration with dB Vib Consulting allows us to address any type of vibration, acoustic and vibro-acoustic coupling problem. Accordingly, dB Vib Engineering is able to produce structures for vibration testing with stiffness or modal density constraints. Our expertise also enables us to size acoustic testing booths for measuring all kinds of specimens (alarms, warning lights, valves, etc.).

Furthermore, our CFD (Computational Fluids Dynamics) calculation department enables us to design aero-acoustic testing structures such as open or closed circuit wind tunnels, while simultaneously ensuring the aeraulic performance levels (flow, pressure losses, speed, etc.) of the equipment are met.