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Establishment of the Co-C Eutectic Fixed-Point Cell for Thermocouple Calibrations at NIMT

  • O. OngraiEmail author
  • C. J. Elliott
TEMPMEKO 2016
  • 127 Downloads
Part of the following topical collections:
  1. TEMPMEKO 2016: Selected Papers of the 13th International Symposium on Temperature, Humidity, Moisture and Thermal Measurements in Industry and Science

Abstract

In 2015, NIMT first established a Co-C eutectic temperature reference (fixed-point) cell measurement capability for thermocouple calibration to support the requirements of Thailand’s heavy industries and secondary laboratories. The Co-C eutectic fixed-point cell is a facility transferred from NPL, where the design was developed through European and UK national measurement system projects. In this paper, we describe the establishment of a Co-C eutectic fixed-point cell for thermocouple calibration at NIMT. This paper demonstrates achievement of the required furnace uniformity, the Co-C plateau realization and the comparison data between NIMT and NPL Co-C cells by using the same standard Pt/Pd thermocouple, demonstrating traceability. The NIMT measurement capability for noble metal type thermocouples at the new Co-C eutectic fixed point (\(1324.06\,{^{\circ }}\hbox {C}\)) is estimated to be within \(\pm 0.60\,\hbox {K}\) (\(k=2\)). This meets the needs of Thailand’s high-temperature thermocouple users—for which previously there has been no traceable calibration facility.

Keywords

Calibration Co-C Eutectic Fixed-point cell Thermocouple Traceability 

References

  1. 1.
    T.B. Massalski, H. Okamoto, Binary Alloy Phase Diagrams (ASM International, Ohio, 1990)Google Scholar
  2. 2.
    Y. Yamada, F. Sakuma, A. Ono, Metrologia 37, 71 (2000)ADSCrossRefGoogle Scholar
  3. 3.
    Y. Yamada, N. Sasajima, F. Sakuma, A. Ono, in Proceedings of TEMPMEKO 2001, 8th International Symposium on Temperature and Thermal Measurements in Industry and Science, ed. By B. Fellmuth, J. Seidel, G. Scholz (VDE Verlag, Berlin, 2002), pp. 19–26Google Scholar
  4. 4.
    F. Edler, A.C. Baratto, Metrologia 42, 201 (2005)ADSCrossRefGoogle Scholar
  5. 5.
    R. Morice, P. Ridoux, J.R. Filtz, Measure 3, 44 (2008)Google Scholar
  6. 6.
    H. Ogura, M. Izuchi, M. Arai, Int. J. Thermophys. 29, 210 (2008)ADSCrossRefGoogle Scholar
  7. 7.
    J.V. Pearce, F. Edler, C.J. Elliott, G. Failleau, R. Morice, H. Ogura, Metrologia 48, 375 (2011)ADSCrossRefGoogle Scholar
  8. 8.
    J.V. Pearce, V. Montag, D. Lowe, W. Dong, Int. J. Thermophys. 32, 463 (2011)ADSCrossRefGoogle Scholar
  9. 9.
    N. Sasajima, Y. Yamada, and F. Sakuma, Temperature: Its Measurement and Control in Science and Industry, vol 7 (AIP conference proceeding, 2003) pp. 279-284Google Scholar
  10. 10.
    Y. Yamada, B. Khlevnoy, Y.F. Wang, T.J. Wang, K. Anhalt, Metrologia 43, S140 (2006)ADSCrossRefGoogle Scholar
  11. 11.
    G. Machin, G. Beynon, F. Edler, S. Fourrez, J. Hartmann, D. Lowe, R. Morice, M. Sadli, and M. Villamanan, Temperature: Its Measurement and Control in Science and Industry, vol 7 (AIP conference proceeding, 2003), pp. 285–290Google Scholar
  12. 12.
    G. Machin, P. Bloembergen, J. Hartmann, M. Sadli, Y. Yamada, Int. J. Thermophys. 28, 1976 (2007)ADSCrossRefGoogle Scholar
  13. 13.
    R. Morice, F. Edler, J. Pearce, G. Machin, J. Fischer, J.R. Filtz, Int. J. Thermophys 29, 231 (2008)ADSCrossRefGoogle Scholar
  14. 14.
    E.R. Woolliams, G. Machin, D.H. Lowe, R. Winkler, Metrologia 43, R11 (2006)ADSCrossRefGoogle Scholar
  15. 15.
    F. Jahan, M. Ballico, Int. J. Thermophys. 28, 1832–1842 (2007)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.National Institute of Metrology (Thailand, NIMT)Klong LuangThailand
  2. 2.National Physical Laboratory (NPL)TeddingtonUK

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