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Optical Measurement of the Speed of Sound in Air Over the Temperature Range 300-650 KUsing laser-induced thermal acoustics (LITA), the speed of sound in room air (1 atm) is measured over the temperature range 300-650 K. Since the LITA apparatus maintains a fixed sound wavelength as temperature is varied, this temperature range simultaneously corresponds to a sound frequency range of 10-15 MHz. The data are compared to a published model and typically agree within 0.1%-0.4% at each of 21 temperatures.
Document ID
20000115878
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hart, Roger C.
(Institute for Computer Applications in Science and Engineering Hampton, VA United States)
Balla, R. Jeffrey
(NASA Langley Research Center Hampton, VA United States)
Herring, G. C.
(NASA Langley Research Center Hampton, VA United States)
Date Acquired
August 19, 2013
Publication Date
October 1, 2000
Publication Information
Publication: Journal of the Acoustical Society of America
Publisher: Acoustical Society of America
Volume: 108
Issue: 4
ISSN: 0001-4966
Subject Category
Acoustics
Distribution Limits
Public
Copyright
Other

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