<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The propagation of uncertainties, when the International Temperature Scale of 1990 (ITS-90) is used by a standard platinum resistance thermometer (SPRT) calibrated at defining fixed points (DFP), can be solved by applying several approaches. The article presents an analysis of contribution of covariance between resistances of SPRT at the defining fixed points (DFP). Its effect on temperature measured by calibrated SPRT is demonstrated by using real calibration data.</p></abstract>

The propagation of uncertainties, when the International Temperature Scale of 1990 (ITS-90) is used by a standard platinum resistance thermometer (SPRT) calibrated at defining fixed points (DFP), can be solved by applying several approaches. The article presents an analysis of contribution of covariance between resistances of SPRT at the defining fixed points (DFP). Its effect on temperature measured by calibrated SPRT is demonstrated by using real calibration data.

Contribution of the SPRT Calibration to Uncertainty of Temperature <italic>T</italic><sub>90</sub> Measured by the Calibrated SPRT

Slovak Institute of Metrology, Karloveská 63, 842 55 Bratislava 4, Slovak Republic

Faculty of Mechanical Engineering, Slovak University of Technology, Bratislava, Slovak Republic Nám. Slobody 17, 812 31 Bratislava

Measurement Science Review

Contribution of the SPRT Calibration to Uncertainty of Temperature  Measured by the Calibrated SPRT

The propagation of uncertainties, when the International Temperature Scale of 1990 (ITS-90) is used by a standard platinum resistance thermometer (SPRT)...

Contribution of the SPRT Calibration to Uncertainty of Temperature T₉₀ Measured by the Calibrated SPRT

Published Online: Mar 07, 2008

Page range: 5 - 10

DOI: https://doi.org/10.2478/v10048-008-0002-2

Keywords
ITS-90, standard platinum resistance thermometer, defining fixed point, calibration, uncertainty

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Contribution of the SPRT Calibration to Uncertainty of Temperature T90 Measured by the Calibrated SPRT