Abstract
Negative temperature coefficient thermistors have a high degree of nonlinearity in the resistance–temperature curve, which needs to be fitted with equations in practical applications. The effects of the number of selected points and the way of point selection on the fitting results of different equations in the range of (−50 to 100) °C are explored, and the results show that selecting 11 fitting points with the temperature/resistance combination method can improve the accuracy of S–H fitting, which is suitable for fields with lower precision requirements. For high-precision measurements, the Hoge-2 and Hoge-3 equations should be used with a temperature uniformity point selection method, and the optimal number of fitting points is 11 and 6, respectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Kulkarni, M. Patrascu, Y. Vijver, J. V. Wensveen, and S. Nihtianov, Investigation of long-term drift of NTC temperature sensors with less than 1 mK uncertainty, in 2015 IEEE 24th international symposium on industrial electronics (ISIE), 2015
K.M. Lawton and S.R. Patterson, Long-term relative stability of thermistors. Precision Engineering, 25(1) (2001) 24–28.
M.K. Lawton and R.S. Patterson, Long-term relative stability of thermistors: part 2. Precision Engineering, 26(3) (2002) 340–345.
G. Strapazzon, E. Procter, G. Avancini, et al., Thermistor probe for measurement of tympanic temperature: Influence of ambient temperature. Resuscitation, 84 (2013) S93.
R. Farré, J.M. Montserrat, M. Rotger, E. Ballester and D. Navajas, Accuracy of thermistors and thermocouples as flow-measuring devices for detecting hypopnoeas. European Respiratory Journal, 11(1) (1998) 179–182.
Y. U. Bin, L. I. Xiaoping, and H. Nie, Precise temperature control system of projection optics of scanner lithography. Machine Tool & Hydraulics, (2006)
J.H. Hoge, Useful procedure in least squares, and tests of some equations for thermistors. Review of Scientific Instruments, 59(6) (1988) 975–979.
J.S. Steinhart and S.R. Hart, Calibration curves for thermistors. Deep-Sea Research and Oceanographic Abstracts, 15(4) (1968) 497–503.
G. Liu, L. Guo, C. Liu and Q. Wu, Evaluation of different calibration equations for NTC thermistor applied to high-precision temperature measurement. Measurement, 120 (2018) 21–27.
C. Chen, Evaluation of resistance–temperature calibration equations for NTC thermistors. Measurement, 42(7) (2009) 1103–1111.
D.R. White, Interpolation errors in thermistor calibration equations. International Journal of Thermophysics, 38(4) (2017) 1103.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Li, A., Liu, Z., Cai, X. et al. A Study of Point Selection Strategies for Fitting Negative Temperature Coefficient Thermistors. MAPAN (2024). https://doi.org/10.1007/s12647-024-00751-4
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s12647-024-00751-4