Comparisons of Co–C and Pd–C Eutectic-Point Cells for Thermocouple Calibration Between NMIA and NMIJ

  • H. OguraEmail author
  • F. Jahan
  • K. Yamazawa
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


Comparisons between NMIA and NMIJ on the melting temperatures of the Co–C eutectic point and the Pd–C eutectic point were performed using an NMIJ high-temperature furnace. The eutectic-point cells were constructed by NMIA and NMIJ following two different specifications. NMIA designed two miniature crucibles, one for Co–C and one for Pd–C eutectic-point cells. NMIJ designed larger eutectic-point cells, one for Co–C and one for Pd–C eutectic-point cells. Prior to performing the comparisons, the effect of conductive heat flow through the thermocouple stem was evaluated during the melting. The comparisons of the Co–C eutectic-point cells and of the Pd–C eutectic-point cells were performed using types R, B and Pt/Pd thermocouples. Despite the different cell designs and different material sources, the melting temperatures of the Co–C and Pd–C eutectic-point cells under investigation agreed within 0.1 \(\,{^{\circ }}\hbox {C}\).


Calibration Co–C eutectic point Pd–C eutectic point Thermocouple 



The authors thank Y. Huang (NMIJ) and M. Izuchi (NMIJ), for valuable assistance with the Ag fixed point measurements, and the inhomogeneity measurements using the water heat-pipe furnace in NMIJ.


  1. 1.
    M. Sadli, J. Fischer, Y. Yamada, V. Sapritsky, D. Lowe, G. Machin, in Proceedings of the TEMPMEKO 2004, ed. by D. Zvizdic (FSB/LPM, Zagreb, Croatia, 2004), pp. 341–348Google Scholar
  2. 2.
    E.R. Woolliams, G. Machin, D.H. Lowe, R. Winkler, Metrologia 43, R11 (2006)ADSCrossRefGoogle Scholar
  3. 3.
    J.V. Pearce, G. Machin, T. Ford, S. Wardle, Int. J. Thermophys. 29, 222 (2008)ADSCrossRefGoogle Scholar
  4. 4.
    H. Ogura, M. Izuchi, J. Tamba, M. Arai, in Proceedings of the ICROS-SICE International Joint Conference 2009 (SICE, Tokyo, 2009), pp. 3297–3302Google Scholar
  5. 5.
    A.D.W. Todd, M. Gotoh, D.J. Woods, K.D. Hill, Int. J. Thermophys. 32, 453 (2011)ADSCrossRefGoogle Scholar
  6. 6.
    O. Ongrai, J.V. Pearce, G. Machin, S.J. Sweeney, Meas. Sci. Technol. 22, 015104 (2011)ADSCrossRefGoogle Scholar
  7. 7.
    F. Jahan, M. Ballico, in Temperature: Its Measurement and Control in Science and Industry, vol. 8, part 1, ed. by C.W. Meyer (AIP, New York, 2013), pp. 346–351Google Scholar
  8. 8.
    G. Failleau, T. Deuzé, F. Bourson, S. Briaudeau, M. Sadli, in Temperature: Its Measurement and Control in Science and Industry, vol. 8, part 1, ed. by C.W. Meyer (AIP, New York, 2013), pp. 352–357Google Scholar
  9. 9.
    F. Edler, P. Ederer, Int. J. Thermophys. 35, 1180 (2014)ADSCrossRefGoogle Scholar
  10. 10.
    M. Holmsten, H. Ogura, P. Klason, S. Ljungblad, Int. J. Thermophys. 36, 1888 (2015)ADSCrossRefGoogle Scholar
  11. 11.
    F. Edler, A.C. Baratto, Metrologia 42, 201 (2005)ADSCrossRefGoogle Scholar
  12. 12.
    F. Edler, R. Morice, H. Ogura, J. Pearce, Metrologia 47, 90 (2010)ADSCrossRefGoogle Scholar
  13. 13.
    H. Ogura, J.O. Favreau, T. Deuze, R. Morice, Int. J. Thermophys. 32, 1811 (2011)ADSCrossRefGoogle Scholar
  14. 14.
    H. Ogura, M. Holmsten, P. Klason, Int. J. Thermophys. 36, 399 (2015)ADSCrossRefGoogle Scholar
  15. 15.
    Y.-G. Kim, Z. Wei, H. Ogura, F. Jahan, Y.P. Singh, Metrologia 53, 03003 (2016)ADSCrossRefGoogle Scholar
  16. 16.
    J.V. Pearce, F. Edler, C.J. Elliott, G. Failleau, R. Morice, H. Ogura, Metrologia 48, 375 (2011)ADSCrossRefGoogle Scholar
  17. 17.
    F. Edler, W. Zheng, Metrologia 48, 275 (2011)ADSCrossRefGoogle Scholar
  18. 18.
    F. Jahan, H. Ogura, M. J. Ballico, E.W.M. van der Ham, N. Sasajima, in Abstracts of  TEMPMEKO2016, XIII International Symposium on Temperature and Thermal Measurements in Industry and Science (2016), p. 219Google Scholar
  19. 19.
    H. Ogura, M. Izuchi, M. Arai, Int. J. Thermophys. 29, 210 (2008)ADSCrossRefGoogle Scholar
  20. 20.
    J. Tamba, K. Yamazawa, S. Masuyama, H. Ogura, M. Izuchi, Int. J. Thermophys. 32, 2436 (2011)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.National Metrology Institute of JapanNational Institute of Advanced Industrial Science and Technology (NMIJ, AIST)TsukubaJapan
  2. 2.National Measurement InstituteSydneyAustralia
  3. 3.National Institute of Technology and EvaluationShibuya-ku, TokyoJapan

Personalised recommendations