| Summary: | 碩士 === 大同大學 === 機械工程學系(所) === 99 === The study is to discuss the measurement system capacity analysis of Gauge Block Comparator. The purpose is improving the quality requirement of calibration instruments to ensure the stability of quality system while calibrating. The total variance arisen from measuring instruments includes: the variety of measuring environment, the precision of measuring equipment, the experience of measuring staff and the specifications of the workpiece under test. The variance arisen from these sources of variation must be made into data and chart to show the measuring capability of measurement system.
The main items in measurement system analysis are: stability, bias, linearity, repeatability and reproducibility. Different experimental models are designed according to different characteristics. After running the data, we can estimate these data with some statistical methods which include: hypothesis test, one-sample t test, two-sample t-test, linear regression analysis, analysis of variance (F test). Then we use statistical software (MINITAB) to do the reliability analysis and to list the analysis charts.
Finally, we determine if the measuring capability of instrument is qualified to provide a reference for instrument calibration personnel and quality assurance workers. This analysis method helps us check if instruments are abnormal in quality system. Using the analysis method to determine the measurement system can more clearly show the assurance in quality system.
Key word：Length correction, Gauge Block Comparator, Measurement system analysis
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