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Caesium- and sodium-filled pressure controlled heat pipe at NRC

Par Conseil national de recherches du Canada

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DOITrouver le DOI : https://doi.org/10.1088/1742-6596/2554/1/012005
AuteurRechercher : 1; Rechercher : 1
Affiliation
  1. Conseil national de recherches du Canada. Centre de recherche en métrologie
FormatTexte, Article
ConférenceInternational Symposium on Temperature and Thermal Measurements in Industry and Science, June 10-14, 2019, Chengdu, China
Résumé
What if you could tune the temperature of the fixed point used to calibrate your thermometer continuously between the freezing points of zinc (692.677 K) and silver (1234.93 K) while maintaining the uniform temperature environment (±10 mK) along 20 cm zone for hours at a time and with an uncertainty approaching a fraction of a mK? We are aiming to do exactly that by using a set of caesium- and sodium-filled pressure controlled heat pipes previously established at NRC. The original pressure controlled heat pipe furnaces have been recommissioned with a number of changes to improve their function as a calibration by comparison apparatus. In particular, the new gas handling system capable of controlling the pressure within ±4 ppm was installed side by side with the previously reported one. In this paper, we show the temperature performance of legacy NRC caesium- and sodium-filled pressure controlled heat pipes when connected to the new gas handling system.
Date de publication
Maison d’éditionIOP
Licence
Dans
  • Journal of Physics: Conference Series 2554, 012005 (28 juillet 2023).
Langueanglais
Publications évaluées par des pairsOui
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Identificateur de l’enregistrement6550aeb9-e68f-4442-aeb3-eb4a72736a74
Enregistrement créé2024-03-21
Enregistrement modifié2024-03-21
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