Research and design of temperature compensation method for thermocouple

Chunhong Hu; Yuan Tian; Yingjie Sun

doi:10.1117/12.3015185

4 March 2024 Research and design of temperature compensation method for thermocouple

Chunhong Hu, Yuan Tian, Yingjie Sun

Proceedings Volume 12981, Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023); 129812O (2024) https://doi.org/10.1117/12.3015185
Event: 9th International Symposium on Sensors, Mechatronics, and Automation (ISSMAS 2023), 2023, Nanjing, China

Abstract

Temperature compensation at the cold end of thermocouple is an important problem in the application of thermocouple. In practical use, it is difficult to keep the cold end temperature of thermocouple at 0 °C or a certain value. In this paper, several common methods of thermocouple cold-end compensation are introduced, such as Ice Bath method, Compensation Bridge method. This paper analyzes the working principle, advantages and disadvantages, and the scope of application of these methods, and finally designs an integrated hardware solution, which can be used in aero-engine instrumentation. Thermocouple using integrated IC, direct thermocouple measurement and reference joint compensation together, effectively solve the problem of temperature compensation.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chunhong Hu, Yuan Tian, and Yingjie Sun "Research and design of temperature compensation method for thermocouple", Proc. SPIE 12981, Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023), 129812O (4 March 2024); https://doi.org/10.1117/12.3015185

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