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Capacitors and Electromagnetic Resonators for Gas Metrology

Published

Author(s)

Michael R. Moldover, James W. Schmidt

Abstract

Gas-filled capacitors are being used as primary thermometers and they show promise as primary pressure standards and for measuring the Boltzmann constant. With these metrological applications in mind, we discuss the advantages and disadvantages of audio-frequency coaxial capacitors and cross capacitors, radio-frequency re-entrant resonators, and microwave-frequency, quasi-spherical resonators for measuring the dielectric permittivity of the monatomic gases. This discussion reflects the authors experience; it is not intended to be a comprehensive review.
Proceedings Title
PTB-Th-3: Talks of the 221st PTB Seminar "Workshop on Progress in Determining the Boltzmann Constant" held on 19th October 2006 in Berlin
Conference Dates
October 19-20, 2006
Conference Location
Berlin
Conference Title
Workshop on Progress in Determining the Boltzmann Constant

Keywords

Boltzmann constant, capacitor, cross capacitor, dielectric constant, helium, microwave resonator, pressure standard

Citation

Moldover, M. and Schmidt, J. (2007), Capacitors and Electromagnetic Resonators for Gas Metrology, PTB-Th-3: Talks of the 221st PTB Seminar "Workshop on Progress in Determining the Boltzmann Constant" held on 19th October 2006 in Berlin, Berlin, -1 (Accessed April 12, 2024)
Created May 1, 2007, Updated February 19, 2017