Experimental validation of cyclical noise source analysis by means of temporal gating technique

Authors

  • Y. Champoux Dept. de Genie Mecanique, Sherbrooke Univ., Que., Canada
  • P. Truchon Dept. de Genie Mecanique, Sherbrooke Univ., Que., Canada
  • G. Bergeron Dept. de Genie Mecanique, Sherbrooke Univ., Que., Canada

Keywords:

acoustic noise, acoustic signal processing, spectral analysis, cyclical noise source analysis, temporal gating, acoustic signals, calibration system, rotating machines

Abstract

Considers the problem of the time/frequency analysis of non-stationary, repetitive acoustic signals. The technique of temporal gating is examined by means of a calibration system specially developed for this purpose. The presence of an internal system delay, and its crucial role during the analysis of results, are demonstrated. The importance of the variability of the speed of rotation of rotating machines is also examined. Finally, it is shown how the technique can be used to predict the efficacy of an acoustic treatment of the source

Published

1988-10-01

How to Cite

1.
Champoux Y, Truchon P, Bergeron G. Experimental validation of cyclical noise source analysis by means of temporal gating technique. Canadian Acoustics [Internet]. 1988Oct.1 [cited 2021Feb.26];16(4):21-33. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/597

Issue

Section

Technical Articles