液压千斤顶示值误差及内插误差测量结果的不确定度评定  

Evaluation of Uncertainty in Measurement Results of Indication Error and Interpolation Error of Hydraulic Jacks

作　　者：单海娣 付翀 SHAN Haidi;FU Chong(Henan Institute of Metrology,Zhengzhou 450008,China)

机构地区：[1]河南省计量测试科学研究院,河南郑州450008

出　　处：《品牌与标准化》2024年第3期251-253,共3页

摘　　要：根据JJG 621—2012《液压千斤顶》检定规程中示值误差、内插误差的要求,建立相关数学模型,分析、评定影响示值误差、内插误差测量结果的各个因素,利用简洁、高效的方法,全面分析液压千斤顶不确定度评定的过程,最后得到液压千斤顶示值误差、内插误差的合成标准不确定度和扩展不确定度。According to the requirements of indication error and interpolation error in the verification regulation of JJG 621-2012 Hydraulic Jacks,the relevant mathematical model is established,by analyzing and evaluating the factors that affect the measurement results of indication error and interpolation error,the process of uncertainty evaluation of hydraulic jack is comprehensively analyzed by using a concise and efficient method,finally,the combined standard uncertainty and extended uncertainty of indication error and interpolation error of hydraulic jacks are obtained.

关 键 词：液压千斤顶 不确定度 内插误差 示值误差 

分 类 号：TH211.1[机械工程—机械制造及自动化]