On-Line Sound Brush Measurement Technique for 3D Noise Emission Studies

Paper #:
  • 2013-01-1973

Published:
  • 2013-05-13
DOI:
  • 10.4271/2013-01-1973
Citation:
Janssens, K., De Weer, D., Bianciardi, F., and Sondergaard, T., "On-Line Sound Brush Measurement Technique for 3D Noise Emission Studies," SAE Technical Paper 2013-01-1973, 2013, doi:10.4271/2013-01-1973.
Pages:
9
Abstract:
A key issue in noise emission studies of noise producing machinery concerns the identification and analysis of the noise sources and their interaction and radiation into the far field. This paper presents a new acoustic measurement technique for noise source identification in stationary applications. The core of the technology is a handheld measurement instrument combining a position and orientation tracking device with a 3D sound intensity probe. The technique allows an on-line 3D visualization of the sound field while moving the probe freely around the test object. By focusing on the areas of interest, troublesome areas can be identified that require further in-depth analysis. The measurement technique is flexible, interactive and widely applicable in industrial applications. This paper explains the working principle and characteristics of this new technology and positions it to existing methods like traditional sound intensity testing and array techniques.
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