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An adiabatic calorimeter for calibrating capsule type thermometers (CSPRTs) in the range 54 K to 273 K

Published online by Cambridge University Press:  14 November 2012

M.G. Ahmed  and
A.A. El Matarawy
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Abstract

A new comparison system has been constructed for the calibration of capsule-type standard platinum resistance thermometers (CSPRTs) below 273.16 K at the National Institute of Standards (NIS-Egypt). The system can compare two CSPRTs at once. A gold plated comparison block, in which CSPRTs are mounted for calibration, is made from oxygen-free high-conductivity copper. A description of the system and the comparison block along with the comparison method is given. The standard uncertainty related to the temperature control of the system is estimated to be 0.04 mK. The calibrated values for CSPRTs and obtained using the comparison system are in good agreement with those obtained by the direct realization of the low temperature fixed points of the ITS-90 within the combined standard uncertainty.

Keywords

CSPRTsITS-90adiabatic calorimeterfixed pointsuncertainty
Type
Research Article
Information
International Journal of Metrology and Quality Engineering , Volume 3 , Issue 2 , 2012 , pp. 85 - 87
Copyright
© EDP Sciences 2012

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References

Preston-Thomas, H., The international temperature scale of 1990 (ITS-90), Metrologia 27, 3–10 (1990) CrossRefGoogle Scholar
F. Pavese, B. Fellmuth, D. Head, Y. Hermier, A. Peruzzi, A.S. Grzebyk, L. Zanin, in Temperature : Its Measurement and Control in Science and Industry (AIP Conf. Proc., New York, 2003), Vol. 7, Part 1, pp. 161–166
Y. Hermier, L. Pitre, C. Geneville, A. Vergé, G. Bonnier, D.I. Head, B. Fellmuth, L. Wolber, A. Szmyrka Grzebyk, L. Lipinski, M.J. de Groot, A. Peruzzi, in Temperature : Its Measurement and Control in Science and Industry (AIP Conf. Proc., New York, 2003), Vol. 7, Part 1, pp. 179–184
F. Pavese, in Temperature : Its Measurement and Control in Science and Industry (AIP Conf. Proc., New York, 2003), Vol. 7, Part 1, pp. 167–172
Sparasci, F., Pitre, L., Rouillé, G., Thermeau, J.-P., Truong, D., Galet, F., Hermier, Y., An adiabatic calorimeter for the realization of the ITS-90 in the cryogenic range at the LNE-CNAM, Int. J. Thermophys. 32, 201–214 (2011) CrossRefGoogle Scholar
Nakano, T., Tamura, O., Sakurai, H., Comparison system for the calibration of capsule-type standard platinum resistance thermometers at NMIJ/AIST, Int. J. Thermophys. 29, 881–889 (2008)CrossRefGoogle Scholar