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  Consulting    NVH Consulting     Methods/ Tools     Laser BTPA
NVH Consulting - Laser BTPA - Vibrating Surfaces Made Visible and Audible
This new process allows one to link laser vibrometer measurements with reciprocal airborne sound measurements.
For visual representation of the component vibration, instead of the vibration amplitude measured directly with the laser vibrometer, the amplitude weighted with the reciprocally measured transfer function for airborne sound is given.
 
This representation is a measure of the airborne sound relevance of the component's surface and shows whether, and to what extent, individual areas are responsible for the noise reaching your ear.
The acoustic engineer is then directly shown the locations at which acoustic measures need to be introduced.
Laser BTPA Measurement Setup
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