金属电阻温度系数测定的实验技术改进

doi:10.14139/j.cnki.cn22-1228.2023.05.012

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摘要

实现准确控温是金属电阻温度系数测定的关键。本文基于 PTC 加热片、单片机、温度传感器、金属空腔等组成温制装置，实现对漆包铜线的加热、控温和测温，改进后的实验装置温控准确，实验数据线性性好，线性相关系数 R²达到0.999以上，且更接近于理论值。

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	唐绪兵
	汪文明
	杜逐波
	杨祥林
	孙云

关键词: 电阻温度系数温度传感器继电器单片机 PTC

Abstract:

Accurate temperature control is the key to measuring the temperature coefficient of metal resistance．Based on a temperature control device composed of PTC heating plate，micro-controller，temperature sensor，metal cavity，etc．，to achieve heating，temperature control，and temperature measurement of enameled copper wire．The improved experimental device has accurate temperature control，good linearity of experimental data．Linear correlation coefficient Ｒ 2 is over 0．999，and the measurement result is much closer to the theoretical value．

Key words: resistance temperature coefficient temperature sensor electric relay one-chip computer PTC

发布日期: 2023-10-25

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引用本文:

唐绪兵, 汪文明, 杜逐波, 杨祥林, 孙云. 金属电阻温度系数测定的实验技术改进 [J]. 大学物理实验, 2023, 36(5): 53-56.
TANG Xubing, WANG Wenming, DU Zhubo, YANG Xianglin, SUN Yun . Experimental Improvement of Measuring Ｒesistance Temperature Coefficient with the Double Arm Bridge . Physical Experiment of College, 2023, 36(5): 53-56.

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http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2023.05.012 或 http://dawushiyan.jlict.edu.cn/CN/Y2023/V36/I5/53

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