National Measurement Institute of Australia (NMIA) has developed a miniature crucible design suitable for measurement by both thermocouples and radiation thermometry, and has established an ensemble of five Co-C eutectic-point cells based on this design. The cells in this ensemble have been individually calibrated using both ITS-90 radiation thermometry and thermocouples calibrated on the ITS-90 by the NMIA mini-coil methodology. The assigned ITS-90 temperatures obtained using these different techniques are both repeatable and consistent, despite the use of different furnaces and measurement conditions. The results demonstrate that, if individually calibrated, such cells can be practically used as part of a national traceability scheme for thermocouple calibration, providing a useful intermediate calibration point between Cu and Pd.
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11 September 2013
TEMPERATURE: ITS MEASUREMENT AND CONTROL IN SCIENCE AND INDUSTRY, VOLUME 8: Proceedings of the Ninth International Temperature Symposium
19–23 March 2012
Los Angeles, California, USA
Research Article|
September 11 2013
Traceable Co-C eutectic points for thermocouple calibration
F. Jahan;
F. Jahan
National Measurement Institute, Lindfield, NSW 2070,
Australia
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M. J. Ballico
M. J. Ballico
National Measurement Institute, Lindfield, NSW 2070,
Australia
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AIP Conf. Proc. 1552, 346–351 (2013)
Citation
F. Jahan, M. J. Ballico; Traceable Co-C eutectic points for thermocouple calibration. AIP Conf. Proc. 11 September 2013; 1552 (1): 346–351. https://doi.org/10.1063/1.4819564
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