<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Evaluation of uncertainties of the temperature measurement by standard platinum resistance thermometer calibrated at the defining fixed points according to ITS-90 is a problem that can be solved in different ways. The paper presents a procedure based on the propagation of distributions using the Monte Carlo method. The procedure employs generation of pseudo-random numbers for the input variables of resistances at the defining fixed points, supposing the multivariate Gaussian distribution for input quantities. This allows taking into account the correlations among resistances at the defining fixed points. Assumption of Gaussian probability density function is acceptable, with respect to the several sources of uncertainties of resistances. In the case of uncorrelated resistances at the defining fixed points, the method is applicable to any probability density function. Validation of the law of propagation of uncertainty using the Monte Carlo method is presented on the example of specific data for 25 Ω standard platinum resistance thermometer in the temperature range from 0 to 660 °C. Using this example, we demonstrate suitability of the method by validation of its results.</p></abstract>

Evaluation of uncertainties of the temperature measurement by standard platinum resistance thermometer calibrated at the defining fixed points according to ITS-90 is a problem that can be solved in different ways. The paper presents a procedure based on the propagation of distributions using the Monte Carlo method. The procedure employs generation of pseudo-random numbers for the input variables of resistances at the defining fixed points, supposing the multivariate Gaussian distribution for input quantities. This allows taking into account the correlations among resistances at the defining fixed points. Assumption of Gaussian probability density function is acceptable, with respect to the several sources of uncertainties of resistances. In the case of uncorrelated resistances at the defining fixed points, the method is applicable to any probability density function. Validation of the law of propagation of uncertainty using the Monte Carlo method is presented on the example of specific data for 25 Ω standard platinum resistance thermometer in the temperature range from 0 to 660 °C. Using this example, we demonstrate suitability of the method by validation of its results.

Application of Monte Carlo Method for Evaluation of Uncertainties of ITS-90 by Standard Platinum Resistance Thermometer

Faculty of Mechanical Engineering, Institute of Automation, Measurements and Applied Informatics

Measurement Science Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Evaluation of uncertainties of the temperature measurement by standard platinum resistance thermometer calibrated at the defining fixed points according to...

Application of Monte Carlo Method for Evaluation of Uncertainties of ITS-90 by Standard Platinum Resistance Thermometer

Pubblicato online: 15 giu 2017

Pagine: 108 - 116

Ricevuto: 12 dic 2016

Accettato: 09 mag 2017

DOI: https://doi.org/10.1515/msr-2017-0014

Parole chiave
The law of propagation of uncertainty, Monte Carlo method, the International Temperature Scale of 1990 (ITS-90), Standard Platinum Resistance Thermometer

© 2017 Rudolf Palenčár et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Application of Monte Carlo Method for Evaluation of Uncertainties of ITS-90 by Standard Platinum Resistance Thermometer

Pubblicato online: 15 giu 2017

Pagine: 108 - 116

Ricevuto: 12 dic 2016

Accettato: 09 mag 2017

DOI: https://doi.org/10.1515/msr-2017-0014

Parole chiaveThe law of propagation of uncertainty, Monte Carlo method, the International Temperature Scale of 1990 (ITS-90), Standard Platinum Resistance Thermometer

© 2017 Rudolf Palenčár et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
The law of propagation of uncertainty, Monte Carlo method, the International Temperature Scale of 1990 (ITS-90), Standard Platinum Resistance Thermometer