Moldover, M.
, Greenspan, M.
and Waxman, M.
(1979),
Spherical acoustic resonators for temperature and thermophysical property measurements, High Temperatures - High Pressures, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925174 (Accessed May 5, 2026)
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Spherical acoustic resonators for temperature and thermophysical property measurements
Published
Author(s)
, Martin Greenspan, Meyer Waxman
Abstract
A theoretical and experimental study is reported of the advantages and limitations of using the acoustic radial resonances in a spherical cavity to obtain thermophysical property data in dilute gases. The velocity of sound in dilute gases (0.1-0.5 MPA) is now measured with an accuracy of 0.02% and a precision of 0.001%, and a significant increase in accuracy is anticipated. The measurements are at sufficiently low frequencies (3-15 kHz) to be of value in determining thermophysical properties in many polyatomic gases.Citation
High Temperatures - High Pressures
Volume
11
Pub Type
Journals
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Created November 1, 1979, Updated January 19, 2018