分度方法对高精度数字温度计测量结果影响的实验研究

doi:10.3969/j.issn.1000-1158.2022.02.10

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Abstract The platinum resistance temperature sensor uses CVD equation, ITS-90 international temperature scale and polynomial equation for indexing, and uses high-precision digital thermometer to display the measurement results of different methods, so as to analyze the influence of different scaling methods on the measurement results of high-precision digital thermometer. The experimental research is carried out at -60~300℃. The results show that the scaling method has a certain influence on the measurement results. Under the condition of high-precision measurement, the stability and accuracy can be improved by selecting the method. The research of scaling method should be based on the stability of platinum resistance temperature thermometer and good accuracy of electrical measuring equipment.

Key words： metrology scaling method high-precision digital thermometer CVD equation ITS-90 polynomial equation

Received: 20 January 2022 Published: 23 February 2022

PACS:

TB942

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	Articles by authors
	JIN Zhi-jun
	CHEN Wei-xin
	ZHANG Jun
	ZENG Yong-chun
	LIU Wei

Cite this article:

JIN Zhi-jun,CHEN Wei-xin,ZHANG Jun, et al. Experimental Study on Scaling Methods of High Accuracy Digital Thermometer Measurement Results[J]. Acta Metrologica Sinica, 2022, 43(2): 201-204.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.02.10 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I2/201

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