| Téléchargement | - Voir la version de l’auteur : NRC microwave refractive index gas thermometry implementation between 24.5 K and 84 K (PDF, 1.1 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1007/s10765-017-2239-1 |
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| Auteur | Rechercher : Rourke, P. M. C.1 |
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| Affiliation | - Conseil national de recherches du Canada. Science des mesures et étalons
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| Format | Texte, Article |
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| Sujet | primary thermometry; thermodynamic temperature; T−T90; polarizing gas thermometry; refractive index gas thermometry; RIGT |
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| Résumé | The implementation of microwave refractive index gas thermometry at the
National Research Council between 24.5 K and 84 K is reported. A new gas-handling
system for accurate control and measurement of experimental gas pressure has been
constructed and primary thermometry measurements have been performed using a
quasi-spherical copper resonator and helium gas at temperatures corresponding to
three defining fixed points of the International Temperature Scale of 1990 (ITS-90).
These measurements indicate differences between the thermodynamic temperature T
and ITS-90 temperature T90 of (T −T90) = −0:60±0:56 mK at T90 = 24:5561 K,
(T −T90) = −2:0±1:3 mK at T90 = 54:3584 K, and (T −T90) = −4:0±2:9 mK at
T90 = 83:8058 K. The present results at T90 = 24:5561 K and T90 = 83:8058 K agree
with previously reported measurements from other primary thermometry techniques
of acoustic gas thermometry and dielectric constant gas thermometry, and the result
at T90 = 54:3584 K provides new information in a temperature region where there is
a gap in other recent data sets. |
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| Date de publication | 2017-05-12 |
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| Maison d’édition | Springer |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23002738 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 0ac2fea4-9f11-48f0-a61a-e007058c1a18 |
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| Enregistrement créé | 2018-01-23 |
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| Enregistrement modifié | 2020-03-16 |
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