Skip to main content

Thermistors Used in Climatic Chamber at High Temperature and Humidity

Abstract

In 2011, VSL initiated the development of a facility for a relative humidity between \(-40~^{\circ }\hbox {C}\) and \(+180~^{\circ }\hbox {C}\) for calibrating high-temperature relative humidity sensors at pressures other than atmospheric. The setup for calculating the relative humidity uses the dew-point temperature, measured by a chilled mirror hygrometer, and the temperature distribution in the chamber, measured by a series of thermistors. This paper describes the results of thermal tests performed on the thermistors to ensure that they meet the requirements of the humidity calibration facility. Different types of thermistors were evaluated up to \(105~^{\circ }\hbox {C}\), and the selected type showed a short-term drift of less than 2 mK. Exposure of these thermistors to temperatures up to \(180~^{\circ }\hbox {C}\) gave an initial hysteresis of 40 mK, but after this initial hysteresis, the hysteresis, over the range from \(-40~^{\circ }\hbox {C}\) up to \(180~^{\circ }\hbox {C}\), was less than 10 mK. Use of a digital multimeter, with a low-power option, limited the self-heating of the thermistors, over the range from \(-40~^{\circ }\hbox {C}\) up to \(160~^{\circ }\hbox {C}\), to less than 5 mK. During use in the new setup, the thermistors were exposed to changing humidities between 1 %Rh and 90 %Rh and temperatures up to \(180~^{\circ }\hbox {C}\), showing drifts of less than 10 mK.

This is a preview of subscription content, access via your institution.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

References

  1. M. Heinonen, M. Anagnostou, J. Bartolo, S. Bell, R. Benyon, R.A. Bergerud, J. Bojkovski, N. Böse, V. Fernicola, K. Flakiewicz, M.J. Martin, S. Nedialkov, M.B. Nielsen, S. Oğuz Aytekin, J. Otych, M. Pedersen, M. Rujan, D. Smorgon, N. Testa, E. Turzó-András, M. Vilbaste, M. White, EURAMET P1061, Comparison of Air Temperature Calibrations, Final Report, http://www.euramet.org/fileadmin/docs/projects/EURAMET-P1061_THERM_Final_Report_v4_MH111113.pdf. Accessed 11 Nov 2013

  2. S.D. Wood, B.W. Mangum, J.J. Filiben, S.B. Tillett, J. Res. Natl. Bur. Stand. 83, 247 (1978)

    Article  Google Scholar 

  3. T.H. LaMesrs, J.M. Zurbuchen, H. Trolander, in Temperature, Its Measurement and Control Science and Industry, vol. 5, ed. by J.F. Schooley (AIP, New York, 1982), pp. 865–873

    Google Scholar 

  4. J.A. Wise, in Temperature, Its Measurement and Control Science and Industry, vol. 6, ed. by J.F. Schooley (AIP, New York, 1992), pp. 481–484

    Google Scholar 

  5. W.R. Siwek, M. Sapoff, A. Goldberg, H.C. Johnson, M. Botting, R. Lonsdorf, S. Weber, in Temperature, Its Measurement and Control Science and Industry, vol. 6, ed. by J.F. Schooley (AIP, New York, 1992), pp. 197–502

    Google Scholar 

  6. J. Nielsen, C. Barendregt, in Proceedings of TEMPMEKO 2004, 9th International Symposium on Temperature and Thermal Measurements, in Industry and Science, ed. by D. Zvizdić, L.G. Bermanec, T. Veliki, T. Stašić (FSB/LPM, Zagreb, Croatia, 2004), pp. 781–786

  7. R. Bosma, A. Peruzzi, Int. J. Thermophys. 35, 738 (2014)

    Article  ADS  Google Scholar 

Download references

Acknowledgments

Part of this work was funded by the Ministry of Economic Affairs, The Netherlands.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to J. L. W. A. van Geel.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

van Geel, J.L.W.A., Bosma, R., van Wensveen, J. et al. Thermistors Used in Climatic Chamber at High Temperature and Humidity. Int J Thermophys 36, 569–576 (2015). https://doi.org/10.1007/s10765-014-1753-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10765-014-1753-7

Keywords

  • Calibration
  • Climatic chamber
  • High humidity
  • High temperatures
  • Thermistors