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, -1
Conference Title: Workshop on Progress in Determining the Boltzmann Constant
Pub Type: Conferences
Boltzmann constant, capacitor, cross capacitor, dielectric constant, helium, microwave resonator, pressure standard