NDLI: Calibration of Industrial Platinum Resistance Thermometers up to $$700\,^{\circ }\mathrm{C}$$

Content Provider	Springer Nature Link
Author	Hahtela, O. Heinen, M. Kajastie, H. Ojanen, M. Riski, K. Strnad, R.
Copyright Year	2014
Abstract	Industrial grade platinum resistance thermometers were calibrated in the temperature range from $$200\,^{\circ }\mathrm{C}$$ to $$700\,^{\circ }\mathrm{C}$$ . Both wire-wound and thin-film sensor-based thermometers were investigated. The purpose of the study was to investigate thermometers which could be used in future coal power plants. The calibrations were performed in a vertical cesium heat-pipe furnace and in a horizontal and vertical sodium heat-pipe furnace. The reference thermometer was a standard platinum resistance thermometer calibrated at fixed points up to the aluminum point. In addition to calibration, various thermal tests including immersion measurements and thermal-cycling tests were performed. The stability of the sensors was determined by monitoring the ice-point resistance. Possible contamination of the sensors was determined by measuring the resistance ratio $$R(30\,^{\circ }\mathrm{C})/R(10\,^{\circ }\mathrm{C})$$ several times during the measurement period. The calibration curves were compared with the ICE 60751 standard and International Temperature Scale 1990 (ITS-90) reference functions. Considerable changes were found in all tested thermometers. The wire-wound sensors were more stable than the thin-film sensors.
Starting Page	668
Ending Page	680
Page Count	13
File Format	PDF
ISSN	0195928X
Journal	International Journal of Thermophysics
Volume Number	35
Issue Number	3-4
e-ISSN	15729567
Language	English
Publisher	Springer US
Publisher Date	2014-04-04
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Calibration Industrial Platinum Resistance Temperature Thermometer Condensed Matter Physics Mechanics Industrial Chemistry/Chemical Engineering Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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