Ongrai, O., Pearce, J.V., Machin, G. and Sweeney, S.J. (2013) Self-calibration of a W/Re Thermocouple Using a Miniature Ru-C (1954 °C) Eutectic Cell. In: 9th International Temperature Symposium on Temperature: Its Measurement and Control in Science and Industry, Los Angeles, California, USA, 19–23 Mar 2012, pp. 504-509. ISBN 9780735411784 (doi: 10.1063/1.4821392)
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Abstract
Previous successful investigations of miniature cobalt-carbon (Co-C, 1324 °C) and palladium-carbon (Pd-C, 1492 °C) high temperature fixed-point cells for thermocouple self-calibration have been reported [1-2]. In the present work, we describe a series of measurements of a miniature ruthenium-carbon (Ru-C) eutectic cell (melting point 1954 °C) to evaluate the repeatability and stability of a W/Re thermocouple (type C) by means of in-situ calibration. A miniature Ru-C eutectic fixed-point cell with outside diameter 14 mm and length 30 mm was fabricated to be used as a self-calibrating device. The performance of the miniature Ru-C cell and the type C thermocouple is presented, including characterization of the stability, repeatability, thermal environment influence, ITS-90 temperature realization and measurement uncertainty.
| Item Type: | Conference Proceedings |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Sweeney, Professor Stephen |
| Authors: | Ongrai, O., Pearce, J.V., Machin, G., and Sweeney, S.J. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | AIP Conference Proceedings |
| ISSN: | 1551-7616 |
| ISBN: | 9780735411784 |
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