A Low Temperature Adiabatic Calorimeter. The Calibration of the Platinum Resistance Thermometers

1941 ◽  
Vol 63 (12) ◽  
pp. 3488-3492 ◽  
Author(s):  
Don M. Yost ◽  
Clifford S. Garner ◽  
Darrell W. Osborne ◽  
Thor R. Rubin ◽  
Horace Russell
Keyword(s):  
Low Temperature ◽  
Adiabatic Calorimeter ◽  
Platinum Resistance ◽  
Platinum Resistance Thermometers ◽  
Resistance Thermometers

THE CALIBRATION OF PLATINUM RESISTANCE THERMOMETERS IN THE TEMPERATURE RANGE 11° TO 90°K

1951 ◽  
Vol 29 (2) ◽  
pp. 142-150 ◽  
Author(s):  
J. M. Los ◽  
J. A. Morrison
Keyword(s):  
Low Temperature ◽  
Temperature Scale ◽  
Platinum Resistance ◽  
National Bureau ◽  
International Temperature Scale ◽  
International Temperature ◽  
Platinum Resistance Thermometers ◽  
Resistance Thermometers ◽  
Corrective Term ◽  
Low Temperature Calorimetry

A set of six platinum resistance thermometers of a form suitable for low temperature calorimetry has been made and calibrated in the region 11° to 90°K. by intercomparison with a similar thermometer which had been calibrated at the National Bureau of Standards. Above 90°K. calibration has been made on the International Temperature Scale.Using the intercomparison data, it has been possible to derive a method whereby for these thermometers the scale for the region 20° to 90°K. may be found to within 0.002°C. by means of fixed points. The method applies a 'Z function' of the type used at the National Bureau of Standards (13), plus a corrective term which depends upon the resistance of the thermometer at the boiling point of hydrogen and upon the normal constants which are determined for the International Temperature Scale above 90°K.

scholarly journals On Klemens and Lowenthal's Paper on Deviations from Matthiessen's Rule

1962 ◽  
Vol 15 (3) ◽  
pp. 441
Author(s):  
RJ Berry ◽  
DR Lovejoy
Keyword(s):  
Low Temperature ◽  
Simple Formula ◽  
Platinum Resistance ◽  
Platinum Resistance Thermometers ◽  
Resistance Thermometers ◽  
Conduction Theory ◽  
Resistance Thermometry ◽  
Matthiessen's Rule ◽  
Band Conduction ◽  
Matthiessen’S Rule

In a recent paper on deviations from Matthiessen's rule for platinum Klemens and Lowenthal (1961) classified the deviation patterns, calculated for a number of different platinum resistance thermometers, into three groups, and reported that only one of these groups followed the pattern predicted by Sondheimer and Wilson's (1947) two-band conduction theory. They suggested that if resistors belonging to one particular group (though no matter which group) were selected for use in low temperature platinum resistance thermometry then the resistance-temperature relationship could be expressed accurately by a relatively simple formula. We believe that Klemens and Lowenthal's method of classifying the resistors into groups is open to serious objection and that consequently some of their important conclusions are not necessarily valid.

Comparison of low-temperature scales of platinum resistance thermometers

1959 ◽  
Vol 2 (8) ◽  
pp. 613-614
Author(s):  
D. N. Astrov ◽  
M. P. Orlova ◽  
P. G. Strelkov ◽  
D. I. Sharevskaya
Keyword(s):  
Low Temperature ◽  
Platinum Resistance ◽  
Temperature Scales ◽  
Platinum Resistance Thermometers ◽  
Resistance Thermometers

Certifying precision platinum resistance thermometers

1990 ◽  
Vol 33 (6) ◽  
pp. 586-588
Author(s):  
S. L. Knina ◽  
A. A. Nechai ◽  
A. A. Semenov ◽  
V. A. Petrushina ◽  
A. I. Pokhodun
Keyword(s):  
Platinum Resistance ◽  
Platinum Resistance Thermometers ◽  
Resistance Thermometers
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