ANALYSIS OF CIRCUIT DESIGN METHODS FOR LINEARIZING THE TEMPERATURE CHARACTERISTICS OF NTC THERMISTORS AND THE MEASUREMENT CHANNEL CHARACTERISTICS
DOI:
https://doi.org/10.20535/kpisn.2025.2.331284Abstract
Background. Temperature measurement devices play a crucial role in the automation of various systems and in monitoring diverse physico-chemical parameters. thermoresistors, thermistors, or thermocouples are commonly used as temperature sensors. However, the nonlinear temperature-resistance characteristic of thermistors presents challenges for accurate temperature-to-electric signal conversion. Therefore, the issue of linearizing the output characteristic of the temperature measurement channel remains highly relevant. The task of linearizing the temperature dependence of the measurement channel can be addressed using hardware (circuit-based), software, or combined hardware-software approaches.
Objective. The objective of this research is to analyze the effectiveness of circuit-based (schematic) methods for linearizing the temperature characteristics of NTC-type thermistors and to evaluate their impact on the overall performance of the temperature measurement channel.
Methods. A structural model of a temperature measurement device utilizing an NTC thermistor as a sensor was developed in the MATLAB Simulink environment. Five different circuit configurations for connecting the thermistor to the measurement channel were analyzed to assess the effectiveness of linearization within the temperature ranges of ±15 °C and ±25 °C. Based on the proposed connection schemes, simulation of the temperature characteristics of NTC thermistors was carried out.
Results. The results of the study for five circuit-based methods of linearizing the temperature characteristics of NTC thermistors provide an opportunity to evaluate the effectiveness of applying different circuit-based methods for linearizing the temperature characteristics of NTC thermistors and the measurement channel characteristics in two temperature ranges: ±15°C and ±25°C. Based on the presented simulations, it can be stated that by applying these circuit-based methods for linearizing the temperature characteristics of NTC thermistors and the measurement channel characteristics, the measurement error can be reduced by 40% in a limited temperature range compared to using a balanced measurement bridge, and corrections for compensating the self-heating effect of the thermistor can be determined.
Conclusions. By modeling the circuit-based methods for linearizing the temperature characteristics of NTC thermistors, it becomes possible to evaluate the effectiveness of linearizing the temperature dependence of the measurement channel while investigating various options for connecting the thermistor to the measurement channel. Additionally, the parameters of the measurement channel elements of the temperature measuring device can be determined
References
T. Islam, S.C. Mukhopadhyay, "Linearization of the sensors characteristics: a review", International Journal on Smart Sensing and Intelligent Systems. vol.12, Iss.1, pp. 1-21, 2019. https://doi.org/10.21307/ijssis-2019-007
A. J. Lopez-Martin, A. Carlosena, "Sensor signal linearization techniques: A comparative analysis", Proceedings of the IEEE 4th Latin American Symposium on Circuits and Systems (LASCAS), Cusco, Peru, February 27- March 01, 2013, pp. 1–4. https://doi.org/10.1109/LASCAS.2013.6519013
TDK Corporation, Chip NTC Thermistors (Sensor). [Електронний ресурс]. Режим доступу: https://product.tdk.com/en/search/sensor/ntc/chip-ntc-thermistor/simulation
Murata Manufacturing Co. NTC Thermistor Performance Simulator. [Електронний ресурс]. Режим доступу: https://ds.murata.co.jp/simsurfing/ntcthermistor.html?rgear=suaykx&rgearinfo=com&md5=67c837df0f254f67edb244383dec4b71
Mitsubishi Materials. Chip Thermistor Resistance Simulator. [Електронний ресурс]. Режим доступу: https://www.mmc.co.jp/adv/en/solution/simulator.html
J.G. Webster. "Measurement, Instrumentation, and Sensors Handbook", CRC Press, 1999. https://doi.org/10.1201/9781003040019
S.B. Stankovic, P.A. Kyriacou, "Comparison of thermistor linearization techniques for accurate temperature measurement in phase change materials", Journal of Physics: Conference Series, vol. 307, Iss. 1, pp. 1–6, 2011. https://doi.org/10.1088/1742-6596/307/1/012009
TDK Corporation - NTC Thermistors, General technical information: [Електронний ресурс]. Режим доступу: https://www.tdk-electronics.tdk.com/download/531116/19643b7ea798d7c4670141a88cd993f9/pdf-general-technical-information.pdf
D. R. White, "Temperature Errors in Linearizing Resistance Networks for Thermistors", vol. 36, pp. 3404–3420, 2015. https://doi.org/10.1007/s10765-015-1968-2. Режим доступу: https://link.springer.com/article/10.1007/s10765-015-1968-2 .
Math Encounters Blog, Two-Resistor Thermistor Linearizer. [Електронний ресурс]. Режим доступу: https://www.mathscinotes.com/2013/12/two-resistor-thermistor-linearizer/
M. Mohan, T. Geetha, P. Sankaran and J. Kumar, "Linearization of the Output of a Wheatstone bridge for a Single Active Sensor", Proceedings of the XVIth IMEKO TC4 International Symposium on Electrical Measurements and Instrumentation, Florence, Italy, September 22-24, 2008. Режим доступу: https://www.researchgate.net/publication/235643444_Linearisation_of_the_Output_of_a_Wheatstone_bridge_for_a_Single_Active_Sensor
A. B. Narayanan, "Linearization of Wheatstone-Bridge", Maxim Integrated, Application Note 6244, 2014. [Електронний. ресурс]. Режим доступу: www.analog.com/media/en/technical-documentation/tech-articles/how-to-linearize-wheatstonebridge-circuit-for-better-performance.pdf
S. Ghosh, A. Mukherjee, K. Sahoo, S.K. Sen, and A. Sarkar, "A novel sensitivity enhancement technique employing Wheatstone's Bridge for strain and temperature measurement", Proceedings of the 2015 Third International Conference on Computer, Communication, Control and Information Technology (C3IT), Hooghly, India, February 07-08, 2015, pp. 1-6. https://doi.org/10.1109/C3IT.2015.7060116
S. Matvienko, V. Shevchenko, M. Tereshchenko, A. Kravchenko, and R. Ivanenko, "Determination of composition based on thermal conductivity by thermistor direct heating method", EEJET, vol. 1, no. 5 (103), pp. 19–29, Feb. 2020. https://doi.org/10.15587/1729-4061.2020.193429
S. Matvienko, S. Vysloukh, A. Matvienko, and A. Martynchyk, "Determination thermal and physical characteristics of liquids using pulse heating thermistor method", International Journal of Engineering Research & Science (IJOER), vol. 2, Iss. 5, pp. 250-258, 2016. Режим доступу: https://scholar.google.com.ua/scholar?oi=bibs&cluster=16255719573973202880&btnI=1&hl=en
G.S. Tymchik, S.M. Matvienko, I. Sikorsky, P. Kisała, K. Nurseitova, and A. Iskakova, "Improving the way of determination substances thermal physical characteristics by direct heating thermistor method", Przegląd Elektrotechniczny, vol. 95, Iss. 4, pp. 121-126, 2019. https://doi.org/10.15199/48.2019.04.21
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