Skip to main content
Log in

Experimental Method for Determination of Self-Heating at the Point of Measurement

  • TEMPMEKO 2016
  • Published:
International Journal of Thermophysics Aims and scope Submit manuscript

Abstract

This paper presents a new experimental method and algorithm for the determination of self-heating of platinum resistance thermometer (PRT) when the temperature instability of medium of interest would prevent an accurate self-heating determination using standard methods. In temperature measurements performed by PRT, self-heating is one of the most common sources of error and arises from the increase in sensor temperature caused by the dissipation of electrical heat when measurement current is applied to the temperature sensing element. This increase depends mainly on the applied current and the thermal resistances between thermometer sensing element and the environment surrounding the thermometer. The method is used for determination of self-heating of a 100 \(\Omega \) industrial PRT which is intended for measurement of air temperature inside the saturation chamber of the primary dew/frost point generator at the Laboratory for Process Measurement (HMI/FSB-LPM). Self-heating is first determined for conditions present during the comparison calibration of the thermometer, using the calibration bath. The measurements were then repeated with thermometer being placed in an air stream inside the saturation chamber. The experiment covers the temperature range between \(-65{\,}^{{\circ }}\hbox {C}\) and \(10{\,}^{{\circ }}\hbox {C}\). Self-heating is determined for two different air velocities and two different vertical positions of PRT in relation to the chamber bottom.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

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

Similar content being viewed by others

References

  1. L. Michalski, K. Eckersdorf, J. McGhee, Temperature Measurement (Wiley, Chicester, 2001)

    Book  Google Scholar 

  2. J.V. Pearce, R.L. Rusby, P.M. Harris, L. Wright, Metrologia 50, 345 (2013)

    Article  ADS  Google Scholar 

  3. J.V. Nicholas, D.R. White, Traceable Temperatures (Wiley, Chichester, 1994)

    Google Scholar 

  4. V. Batagelj, J. Bojkovski, J. Drnovšek, I. Pušnik, in AIP Conference Proceedings, vol. 684 (2003), p. 315

  5. C.M. Sutton, Meas. Sci. Technol. 5, 896 (1994)

    Article  ADS  Google Scholar 

  6. D. Zvizdic, M. Heinonen, D. Sestan, Int. J. Thermophys. 33, 1536 (2012)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to D. Sestan.

Additional information

Selected Papers of the 13th International Symposium on Temperature, Humidity, Moisture and Thermal Measurements in Industry and Science.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sestan, D., Zvizdic, D. & Grgec-Bermanec, L. Experimental Method for Determination of Self-Heating at the Point of Measurement. Int J Thermophys 38, 132 (2017). https://doi.org/10.1007/s10765-017-2268-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s10765-017-2268-9

Keywords

Navigation