Thermodynamic effects in a gas modulated Invar-based dual Fabry-Pérot cavity refractometer addressing 100 kpa of nitrogenShow others and affiliations
2022 (English)In: 6th TC16 Conference on Pressure and Vacuum Measurement 2022, Together with the 24th TC3 Conference on the Measurement of Force, Mass and Torque, the 14th TC5 Conference on the Measurement of Hardness, and the 5th TC22 Conference on Vibration Measurement, International Measurement Confederation (IMEKO) , 2022Conference paper, Published paper (Refereed)
Abstract [en]
An Invar-based dual Fabry-Pérot cavity refractometer used for assessments of pressure by the gas modulation refractometry (GAMOR) methodology has been scrutinized with respect to the influence of thermodynamic effects (pV-work) that originates from the gas exchange process when 100 kPa of nitrogen is addressed. It is shown that the actual temperature variation of the cavity spacer solely is a fraction of the previously assessed upper limits (0.5 mK/100 kPa), limited to sub-parts-per-million (ppm) levels. This finding additionally supports the conclusion that the thermodynamic effects will not be a limiting factor when the system is used for assessments of pressure.
Place, publisher, year, edition, pages
International Measurement Confederation (IMEKO) , 2022.
Keywords [en]
Fabry-Perot cavity, gas modulation, pressure, pV-work, refractometry
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-206755Scopus ID: 2-s2.0-85152073996ISBN: 9781713870227 (electronic)OAI: oai:DiVA.org:umu-206755DiVA, id: diva2:1754373
Conference
6th TC16 Conference on Pressure and Vacuum Measurement 2022, Together with the 24th TC3 Conference on the Measurement of Force, Mass and Torque, the 14th TC5 Conference on the Measurement of Hardness, and the 5th TC22 Conference on Vibration Measurement, Cavtat-Dubrovnik, October 11-13, 2022
2023-05-032023-05-032023-05-03Bibliographically approved