Title of article
Investigation of sample size effects in impedance tube measurements
Author/Authors
Naoki Kino، نويسنده , , Takayasu Ueno، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
9
From page
1485
To page
1493
Abstract
A series of careful impedance tube measurements using different sizes of glass fibre and felt samples have demonstrated that frame resonance effects result from slightly oversize samples. The appropriate size of a sample is investigated while also avoiding air leakage. Diameters of 0.5 or 1.0 mm less than the inner diameter of the tube are found to avoid these effects.
Keywords
Absorption coefficient , Impedance tube , Propagation constant , Characteristic impedance
Journal title
Applied Acoustics
Serial Year
2007
Journal title
Applied Acoustics
Record number
1170988
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