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The specifications of roughness used in industry are normally incomplete, and the incompleteness can induce a significant uncertainty, called specification uncertainty. It is important to know the magnitude and effect of this uncertainty, but there are yet no standard methods of evaluating the specification uncertainty. In this paper, we propose an ANOVA method to estimate the specification uncertainty. In this method, ANOVA is used to separate specification uncertainty from measurement uncertainty, and the sampling method of GR&R (gauge repeatability and reproducibility) is applied. A case study is given to demonstrate how to use this method to evaluate the specification uncertainty of measuring roughness with PGI (Phase Grating Interferometer) when the filter type is not specified.
|Title of host publication||Laser Metrology and Machine Performance XI - 11th International Conference and Exhibition on Laser Metrology, Machine Tool, CMM and Robotic Performance, LAMDAMAP 2015|
|Number of pages||10|
|Publication status||Published - 2015|
|Event||11th International Conference and Exhibition on Laser Metrology, Coordinate Measuring Machine and Machine Tool Performance - Huddersfield, United Kingdom|
Duration: 17 Mar 2015 → 18 Mar 2015
Conference number: 11
|Conference||11th International Conference and Exhibition on Laser Metrology, Coordinate Measuring Machine and Machine Tool Performance|
|Abbreviated title||LAMDAMAP 2015|
|Period||17/03/15 → 18/03/15|
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