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电阻温度传感器自热效应的原位评估

In Situ Evaluation of the Self-Heating Effect in Resistance Temperature Sensors.

作者信息

Otomański Przemysław, Pawłowski Eligiusz, Szlachta Anna

机构信息

Institute of Electrical Engineering and Electronics, Faculty of Control, Robotics and Electrical Engineering, Poznan University of Technology, Piotrowo Street 3A, 60-965 Poznan, Poland.

Department of Automation and Metrology, Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka Street 38A, 20-618 Lublin, Poland.

出版信息

Sensors (Basel). 2025 May 27;25(11):3374. doi: 10.3390/s25113374.

DOI:10.3390/s25113374
PMID:40968868
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12158210/
Abstract

This paper discusses the issue of the self-heating effect of resistance sensors during temperature measurement. The self-heating effect causes temperature measurement errors. The aim of this work was to develop a method for in situ assessment of the thermal resistance between a self-heating thermometer and its surrounding environment, the temperature of which is measured. The proposed method is used to assess the uncertainty resulting from the heat transfer from the thermometer to the surrounding environment, which allows increased measurement accuracy. The proposed method consists of experimental determination of the sensor's temperature characteristics in relation to the heating power for different values of the measuring current. Sample measurements were carried out on a representative group of resistance temperature sensors. The relationship of the internal thermal resistance to the type of sensor design and the relationship of the external resistance to the ambient conditions were demonstrated. The developed method allows the appropriate measuring current of the resistance temperature sensor to be selected according to its design, the mounting method, and the environmental conditions, which ensures that measurement errors are maintained at an appropriately low level.

摘要

本文讨论了电阻传感器在温度测量过程中的自热效应问题。自热效应会导致温度测量误差。这项工作的目的是开发一种原位评估自热温度计与其周围环境之间热阻的方法，该环境的温度是被测量的。所提出的方法用于评估由于温度计向周围环境的热传递而产生的不确定性，这有助于提高测量精度。所提出的方法包括针对不同测量电流值，通过实验确定传感器与加热功率相关的温度特性。对一组具有代表性的电阻温度传感器进行了样本测量。证明了内部热阻与传感器设计类型的关系以及外部热阻与环境条件的关系。所开发的方法允许根据电阻温度传感器的设计、安装方法和环境条件选择合适的测量电流，从而确保测量误差保持在适当的低水平。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/a4332b020f45/sensors-25-03374-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/7f97f5bdc65d/sensors-25-03374-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/a992519fb0fa/sensors-25-03374-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/371de996276c/sensors-25-03374-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/b3dd868580af/sensors-25-03374-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/a4332b020f45/sensors-25-03374-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/3c61f5abb667/sensors-25-03374-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/44ef76845e79/sensors-25-03374-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/68d25dd3abce/sensors-25-03374-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/7f97f5bdc65d/sensors-25-03374-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/a992519fb0fa/sensors-25-03374-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/371de996276c/sensors-25-03374-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/b3dd868580af/sensors-25-03374-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11bb/12158210/a4332b020f45/sensors-25-03374-g008.jpg

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本文引用的文献

1
Method for Correcting Error Due to Self-Heating of Resistance Temperature Detectors Suitable for Metrology in Industry 4.0.适用于工业4.0计量的电阻温度探测器自热误差校正方法
Sensors (Basel). 2024 Dec 14;24(24):7991. doi: 10.3390/s24247991.
2
Intelligent Transducer for Temperature Measurement with Two-Wire or Three-Wire Platinum RTD.用于两线或三线铂电阻温度传感器的智能温度测量传感器。
Sensors (Basel). 2024 Nov 30;24(23):7689. doi: 10.3390/s24237689.