圆柱体体积测量不确定度计算的探究

doi:10.3969/j.issn.1000-1158.2018.z1.11

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Abstract According to the synthetic process of the indirect measurement uncertainty of the national standard, the formula for calculating the uncertainty of the cylinder volume calculated from the measured values of the diameter and height of the bottom surface is derived. The degree of freedom calculated of the volume of the cylinder with derived formula less a relevant item about indication error of the micrometer in the denominator in the formula of degrees of freedom than Error Theory and Data Processing (6th Edition) edited by Fei Yetai. After analysis, the indication error of the micrometer is a random error in measuring height and diameter of the cylinder, it is not relevant. Therefore, in calculating the degree of freedom of the cylinder volume uncertainty, the relevant items on indication error of the micrometer should not be introduced to the calculation formula of degree of freedom of uncertainty.

Key words： metrology uncertainty degree of freedom indirect measurement volume of the cylinder

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TB92

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	Articles by authors
	QU Yu-fu
	WANG Zhong-yu
	ZUO Si-ran
	HU Yong-bo
	QIAN Zheng

Cite this article:

QU Yu-fu,WANG Zhong-yu,ZUO Si-ran, et al. Question on Calculation of Uncertainty in Measurement of Cylinder Volume[J]. Acta Metrologica Sinica, 2018, 39(6A): 53-.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2018.z1.11 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2018/V39/I6A/53

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