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PUBLICATIONS

Optimizing Acoustic Measurements of the Boltzmann Constant

Published

Author(s)

Michael R. Moldover

Abstract

We review the progress in acoustic metrology of gases that has occurred since the 1988 measurement of the universal gas constant R using a spherical acoustic resonator. The advances in understanding resonators and in calculating the thermophysical properties of helium ab intio suggest that today one could determine Boltzmann's constant kB from acoustic measurements using either helium or argon with a relative uncertainty less that 10-6.
Citation
Comptes Rendus De L Academie Des Sciences Serie II Fascicule B-Mecanique Physique Astronomie
Volume
10
Pub Type
Journals

Download Paper

Local Download

Keywords

acoustics, acoustic resonators, acoustic thermometry, Boltzmann constant, fundamental constants, resonators, speed of sound, thermometry
Chemistry, Analytical chemistry, Chemical engineering and processing, Thermochemical properties, Metrology, Thermometry metrology, Thermodynamics and Standards

Citation

Moldover, M. (2009), Optimizing Acoustic Measurements of the Boltzmann Constant, Comptes Rendus De L Academie Des Sciences Serie II Fascicule B-Mecanique Physique Astronomie, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902117 (Accessed October 16, 2025)

Issues

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Created November 22, 2009, Updated February 19, 2017
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