Argon triple point realization cryostat for platinum resistance long stem thermometers

1976 ◽  
Vol 47 (12) ◽  
pp. 1519-1521 ◽  
Author(s):  
J. Ancsin ◽  
J. Phillips
Keyword(s):  
Triple Point ◽  
Platinum Resistance ◽  
Argon Triple Point ◽  
Long Stem

Argon Triple Point for Long-Stem SPRTs: Thermal Behavior

2011 ◽  
Vol 32 (7-8) ◽  
pp. 1573-1580 ◽  
Author(s):  
M. Dobre ◽  
I. Didialaoui ◽  
Y. Hermier
Keyword(s):  
Thermal Behavior ◽  
Triple Point ◽  
Argon Triple Point ◽  
Long Stem

scholarly journals Comparison of the Argon Triple-Point Temperature in Small Cells of Different Construction

2017 ◽  
Vol 38 (6) ◽  
Author(s):  
B. Kołodziej ◽  
A. Kowal ◽  
L. Lipiński ◽  
H. Manuszkiewicz ◽  
A. Szmyrka-Grzebyk
Keyword(s):  
Triple Point ◽  
Small Cells ◽  
Point Temperature ◽  
Argon Triple Point ◽  
Triple Point Temperature

THE FREEZING POINTS OF HIGH PURITY METALS AS PRECISION TEMPERATURE STANDARDS: I. PRECISION MEASUREMENTS WITH STANDARD RESISTANCE THERMOMETERS

1957 ◽  
Vol 35 (1) ◽  
pp. 78-90 ◽  
Author(s):  
E. H. McLaren
Keyword(s):  
Triple Point ◽  
Cold Work ◽  
Platinum Resistance ◽  
Intrinsic Resistance ◽  
Long Term Stability ◽  
Resistance Bridge ◽  
Platinum Resistance Thermometers ◽  
Resistance Thermometers ◽  
Precision Temperature

The techniques and difficulties encountered in measuring temperatures to the highest precision with platinum resistance thermometers are discussed. It is shown that the relative drift of the resistance coils in the Mueller resistance bridge used for these measurements is less than a part per million per year. The intrinsic resistance of a platinum thermometer is comparatively unstable, and results showing some effects of cold work and heat treatment on several thermometers are given.As each precision temperature determination involves the resistance of the thermometer at the triple point of water, extensive measurements have been carried out to obtain information on: (a) the reproducibility of temperature in particular cells, (b) the variation in temperature among cells, and (c) the long term stability of cell temperatures.The limiting uncertainties in temperature measurements due to variation in the bridge, the thermometers, and the triple point cells are each of the order of 10−4 °C.

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