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Proceedings Paper

Aspects Regarding the Drift of Platinum Resistance Sensors Used as Reference Standards
Author(s): Cosmin Dinu; Andreea Diana Morosanu; Dumitru Marius Neagu
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Paper 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.

Paper Details

Date Published: 20 February 2015
PDF: 7 pages
Proc. SPIE 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII, 92581A (20 February 2015); doi: 10.1117/12.2070454
Show Author Affiliations
Cosmin Dinu, Politehnica Univ. of Bucharest (Romania)
National Institute of Metrology (Romania)
Andreea Diana Morosanu, Politehnica Univ. of Bucharest (Romania)
National Institute of Metrology (Romania)
Dumitru Marius Neagu, National Institute of Metrology (Romania)


Published in SPIE Proceedings Vol. 9258:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII
Ionica Cristea; Marian Vladescu; Razvan Tamas, Editor(s)

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