Reducing the uncertainty of sound absorption measurements using the impedance tube method

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

The measurement of sound absorption coefficient (SAC) of porous materials is covered by both American and international standards. However, by using the standards alone it is difficult to achieve consistently repeatable results given the large number of variables such as sample cutting and preparation, sample fit and position in the tube, and sample material variability. This paper will review the standards briefly and examine what is available in the literature to guide users in making consistently repeatable SAC measurements. The paper will also show some of the authors' results and interpret these results in light of the standards and technical literature on the subject.

Original languageEnglish
JournalSAE Technical Papers
Volume4
DOIs
StatePublished - 2013
EventSAE 2013 Noise and Vibration Conference and Exhibition, NVC 2013 - Grand Rapids, MI, United States
Duration: May 20 2013May 23 2013

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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