Gas thermometer for precision measurement of thermodynamic temperatures below 300�K

Autor:	S. P. Polunin, Yu. A. Dedikov, D. N. Astrov, A. A. Zakharov, L. B. Belyanskii
Rok vydání:	1987
Předmět:	Cryostat Argon Materials science Gas thermometer Applied Mathematics chemistry.chemical_element Thermodynamics Temperature measurement law.invention Pressure measurement chemistry law Thermometer Resistance thermometer Instrumentation Helium
Zdroj:	Measurement Techniques. 30:236-241
ISSN:	1573-8906 0543-1972
DOI:	10.1007/bf00867064
Popis:	The authors discuss an apparatus for measuring thermodynamic temperatures of 3-300/sup 0/K by means of a constant-density gas thermometer. The main measuring device in the gas thermometer is a special mercury interference manometer. The flow cryostat for the range 2-300/sup 0/K is shown and the heat carriers are liquid or gaseous helium, hydrogen, and nitrogen. The thermodynamic temperatures measured by this thermometer have been transferred to several standard resistance thermometers made of platinum and rhodium-iron alloy. The gas thermometer examined here enables the measurement of temperatures on the thermodynamic scale with an error of not more than 1 mK.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::69532260388ae672d7a4aeec3a1089d6 https://doi.org/10.1007/bf00867064 Zobrazit plný text záznamu Full text from SpringerLink