Measurement System Analysis (MSA), Comparing Measurement Systems, Process Capability, Gauge Study


This paper presents the results of a manufacturer’s quest to identify a measuring strategy during process development. Standard Measurement Systems Analysis (MSA) criteria provide a common framework to evaluate a gauge’s ability to produce data that fairly represents the quality characteristics that describe a part’s fitness for use. Here, MSA criteria, as well as hypothesis tests of precision and bias, are used to compare to two alternative measurement systems. Ultimately, to compare the two systems, measures of MSA criteria are developed that reflect the potential the criteria could reach by eliminating operator-to-operator gauge error.