P P M Steur and M Durieux 1986 Metrologia 23 1 doi:10.1088/0026-1394/23/1/002
P P M Steur and M Durieux
Show affiliationsGas-thermometer measurements between 4 K and 100 K have been performed at the Kamerlingh Onnes Laboratory as part of the preparatory work in several institutes for a future, revised, International Practical Temperature Scale. Gas-thermometer temperatures are compared, between 13.8 K and 100 K, with platinum resistance thermometers calibrated on IPTS-68 and, between 4.2 K and 27.1 K, with rhodium-iron resistance thermometers calibrated on the National Physical Laboratory (Teddington) Scale of 1975 (NPL-75).
Results of the measurements, with NPL-75 at 20.3 K as a reference temperature for the gas thermometer, show agreement with NPL-75 within 0.3 mK over most of the range. Differences from NPL-75 of 0.6 mK were found in the range 10 K to 14 K and around 27 K.
Below 50 K, IPTS-68 is shown to be 4 mK to 10 mK higher than thermodynamic temperatures. Between 70 K and 100 K, IPTS-68 is 9 mK lower than thermodynamic temperatures.
07.20.Mc Cryogenics; refrigerators, low-temperature equipment
Issue 1 (1986)
Received 14 December 1984
P P M Steur and M Durieux 1986 Metrologia 23 1
Sébastien Guenneau et al 2007 New J. Phys. 9 399
I D Nikolov 2004 Nanotechnology 15 1076
K Fukao et al 1991 J. Phys.: Condens. Matter 3 5451
B Willke et al 2004 Class. Quantum Grav. 21 S417
Paivi Simonen et al 1997 Physiol. Meas. 18 155
L Sakhnovich 2002 Inverse Problems 18 1525
Andreas Voigt et al 2005 Nanotechnology 16 S429
Hans R Griem 2003 J. Phys. B: At. Mol. Opt. Phys. 36 1279
H C Rosu et al 2003 J. Phys. A: Math. Gen. 36 1087