摘要
采用测量系统分析方法,基于量值特性指标对三坐标测量机在产品检验中的不确定度进行评定。以测量不确定度作为产品检验的质量指标,结合产品设计精度,建立产品合格判定的误判率与产品设计公差、产品检验结果估计值和不确定度的数学模型。通过三坐标测量机对零件进行产品检验实验,对测量系统的量值特性给出合理评价,在产品检验不确定度评定基础上对产品的合格性做出判定,并计算可能存在的误判率,以验证理论方法的可行性与可操作性。
Uncertainty of the CMM in product inspection was evaluated based on the indexes of quantum property by using the method of measurement system analysis. Using the measurement uncertainty as the quality index of product inspection, considering the accuracy of product design, the mathematical model of the misjudgment probability in product inspection was established, based on the tolerance of product design and the measurement result combining with its uncertainty. A product inspection experiment was conducted with CMM . The reasonable evaluation of the measurement systemg indexes of quantum property were given, the conformity assessment was carried out based on the uncertainty of product inspection, misjudgment probability was calculated. Finally, the feasibility and operability of the method were verified.
出处
《计量学报》
CSCD
北大核心
2017年第1期51-55,共5页
Acta Metrologica Sinica
基金
国家自然科学基金(51275148)
合肥工业大学青年教师创新项目(JZ2014HGQC0126)
关键词
计量学
产品检验
测量不确定度
三坐标测量机
合格判定
误判率
metrology
product inspection
measurement uncertainty
CMM
conformance testing
misjudgment probability
