20 February 2015 Aspects regarding the drift of platinum resistance sensors used as reference standards
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Proceedings Volume 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII; 92581A (2015) https://doi.org/10.1117/12.2070454
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2014, 2014, Constanta, Romania
Abstract
This paper presents a set of results obtained from measurements performed with platinum resistance thermometers (PRTs) that are used as temperature reference standards at the National Institute of Metrology of Bucharest (INM). These measurements are made for a long period of time allowing us to evaluate the evolution of values. Using these values, with specific means that will be described, the temperature drifts of these standard sensors is calculated. It is very important for the uncertainty budget used for the calibration of various temperature sensors from different industry fields. For the trend evaluation of measured temperature values deviations at the PRT calibration at fixed points three polynomial regressions types were used. The resistance of the thermometers drifted in time at all fixed points used for the calibration range.
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Cosmin Dinu, Cosmin Dinu, Andreea Diana Morosanu, Andreea Diana Morosanu, Dumitru Marius Neagu, Dumitru Marius Neagu, } "Aspects regarding the drift of platinum resistance sensors used as reference standards", Proc. SPIE 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII, 92581A (20 February 2015); doi: 10.1117/12.2070454; https://doi.org/10.1117/12.2070454
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