Characteristic impedance of humid air

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 1986 Canada English Publisher:Acoustical Society of America (ASA)Journal:The Journal of the Acoustical Society of America, volume 80, pages 1,203-1,204 (issn: 0001-4966, eissn: 1520-8524,

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Authors: Wong, G. S.K.;

doi: 10.1121/1.394468

Characteristic impedance of humid air

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Abstract

This paper describes the effects of humidity and temperature on the characteristic impedance ρc of standard atmospheric air. The characteristic impedance decreases with humidity and temperature. An approximate equation is given for the computation of ρc over the range of relative humidity from 0–1.0, and temperature from 0°–30 °C. The maximum uncertainty is estimated to be about 330 ppm.

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Canada

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National Research Council Canada
Canada

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