Calibration of germanium temperature sensors of helium cryostat for experimental study of natural turbulent convection

0352300 - ÚPT 2011 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Urban, Pavel - Hanzelka, Pavel - Musilová, Věra
Calibration of germanium temperature sensors of helium cryostat for experimental study of natural turbulent convection.
The 11th Cryogenics 2010 - IIR International Conference. Praha: ICARIS Ltd, 2010, s. 183-185. ISBN 978-2-913149-77-9.
[Cryogenics 2010 /11./. Bratislava (SK), 26.04.2010-29.04.2010]
Grant CEP: GA MŠMT ED0017/01/01; GA AV ČR KJB200650902
Výzkumný záměr: CEZ:AV0Z20650511
Klíčová slova: comparative calibration * calibration device * temperature sensors calibration * natural convection * Rayleigh number
Kód oboru RIV: BJ - Termodynamika

Experimental study of Nusselt number on Rayleigh number dependence with using of cryogenic 4He gas requires precise measurement of the temperature differenceT between the top and the bottom plates of the convection cell. A special calibration device was adapted and used for comparative calibration of germanium temperature sensors. This device enables to compare up to four sensors within the temperature range of 4.3 K – 40 K.
Trvalý link: http://hdl.handle.net/11104/0191836