Acoustic intensity measurement in a narrow duct by a two-sensor method

The use of two pressure sensors [ Fusco , J. Acoust. Soc. Am. 91 , 2229 ( 1992 ) ] makes it possible to determine the acoustic intensity of a gas column in a duct, but the application of this method was limited to wide ducts. In this letter, the formulation of the method is modified to include narro...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Review of scientific instruments 2007-08, Vol.78 (8), p.086110-086110-3
Hauptverfasser:	Biwa, Tetsushi, Tashiro, Yusuke, Nomura, Hiroshi, Ueda, Yuki, Yazaki, Taichi
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustics - instrumentation Algorithms Computer-Aided Design Equipment Design Equipment Failure Analysis Gases - chemistry Radiation Dosage Radiometry - instrumentation Radiometry - methods Reproducibility of Results Sensitivity and Specificity Transducers
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The use of two pressure sensors [ Fusco , J. Acoust. Soc. Am. 91 , 2229 ( 1992 ) ] makes it possible to determine the acoustic intensity of a gas column in a duct, but the application of this method was limited to wide ducts. In this letter, the formulation of the method is modified to include narrow ducts where the duct radius is as small as the viscous boundary layer thickness of the gas. The validity of this method is shown by comparison with the direct measurements of the pressure and velocity.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.2768929