Abstract

Measurement has been an important activity for centuries. The advent of Six Sigma initiatives has increased the assessment of measurement repeatability and reproducibility using Gage R&R studies. It is common practice that, when the operator-part interaction in Gage R&R studies is statistically significant, the associated variance component is used in estimating the test method reproducibility. In this article it is shown that the Operator-Part interaction may be due to systematic behavior of one or more operators thereby unnecessarily increasing the test method reproducibility variance. Several examples are included to demonstrate how the analysis is performed and how the results can be interpreted.

摘要

几个世纪以来，测量一直是一项重要的活动。六西格码计划的出现增加了使用量具 R&R 研究对测量可重复性和再现性的评估。通常的做法是，当量具 R&R 研究中的操作员-部件交互具有统计显着性时，相关的方差分量用于估计测试方法的再现性。在本文中，操作员-部件的相互作用可能是由于一个或多个操作员的系统行为，从而不必要地增加了测试方法的重现性方差。包括几个示例来演示如何执行分析以及如何解释结果。