测量不确定度引起的抽样检验误判率计算

中国机械工程

测量不确定度引起的抽样检验误判率计算

王汉斌1,2;陈晓怀1;李红莉1;程银宝1;程真英1

1.合肥工业大学仪器科学与光电工程学院，合肥，230009
2.福建省计量科学研究院，福州， 350003

出版日期:2017-04-10 发布日期:2017-04-07
基金资助:
国家自然科学基金资助项目(51275148);
合肥工业大学青年教师创新项目(JZ2014HGQC0126);
中央高校基本科研业务费专项资金资助项目(JZ2016HGBZ0764)

Calculation of Misjudgment Probabilities Caused by Measurement Uncertainties in Sampling Inspections

WANG Hanbin1,2;CHEN Xiaohuai1;LI Hongli1;CHENG Yinbao1;CHENG Zhenying1

1.School of Instrument Science and Opto-electronics Engineering，Hefei University of Technology, Hefei, 230009
2.Fujian Metrology Institute, Fuzhou,350003

Online:2017-04-10 Published:2017-04-07

摘要/Abstract

摘要： 为合理配置测量资源，提高产品检验结果的可靠性，对抽样检验中测量不确定度引起的误判风险进行了量化评估。分析了抽样检验中可能存在的各种风险，重点对测量不确定度的影响进行了讨论；分别针对检验前误判率预估和检验结果误判率计算两种应用情况，提出了误判率计算公式；以产品尺寸合格性检验为例，进行了误判率计算和分析。结果表明，抽样检验误接收和误拒收概率均随测量不确定度的增大而增大，产品检验前应根据可接受误判率合理选择测量方法；对具体产品批的合格性判定结果，应同时计算对应的误判率，以保证产品检验结果的可靠性。

关键词: 抽样检验, 合格判定, 测量不确定度, 误判率

Abstract: To reasonably distribute measurement resources and improve the reliability of the product inspection results, misjudgment risks caused by measurement uncertainties in sampling inspection were evaluated. Different kinds of risks in sampling inspections were analyzed, and the influences of measurement uncertainties were mainly described. Misjudgment probability formulas were given, respectively for the pre-estimations before inspections and calculations after inspections. Taking product size conformity assessment as an example, misjudgment probabilities were calculated and analyzed. Results show that misjudgment probabilities for both acceptance and rejection in sampling inspection increase with the measurement uncertainties, measurement methods should be reasonably chosen before inspections according to acceptable misjudgment probabilities. For the conformity assessment results of specific product batch, corresponding misjudgment probability should also be calculated to ensure the reliability of product inspection results.

Key words: sampling inspection, conformity assessment, measurement uncertainty, misjudgment probability

中图分类号:

TB92
TH124

王汉斌, 陈晓怀, 李红莉, 程银宝, 程真英. 测量不确定度引起的抽样检验误判率计算[J]. 中国机械工程.

WANG Hanbin, CHEN Xiaohuai, LI Hongli, CHENG Yinbao, CHENG Zhenying. Calculation of Misjudgment Probabilities Caused by Measurement Uncertainties in Sampling Inspections[J]. China Mechanical Engineering.

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