摘要: |
介绍了某型号产品质量、轴向质心的测量原理,建立了数学模型,并分析了测量不确定度来源。按照JJF 1059.1—2012评定了成套检测系统的不确定度,给出了包含因子k=2、置信水平p=95%的情况下测量结果的扩展不确定度。 |
关键词: 质量;质心;测量不确定度 |
基金项目: |
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Initial Measurement Method for a Certain Type of Product and Uncertainty Analysis of Mass Center of Mass |
Chang Xiaodong Fang Dongdong Zheng Yong Li Li
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Hubei Sanjiang Space Jianghe Chemical Industry Science and Technology Company Limited
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Abstract: |
This paper introduces the measuring principle of the mass and the axial center of mass of a certain type of product, establishes the mathematical model, and analyses the source of uncertainty of measurement. According to JJF 1059.1—2012 “Evaluation and expression of uncertainty in measurement”, the uncertainty of the complete set of testing system is evaluated, and the extended uncertainty of measurement results in the case of the k=2, the confidence level p=95%. |
Key words: the mass;axial center of mass;uncertainty of measurement |