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Publisher: EUSPEN
Languages: English
Types: Part of book or chapter of book
Subjects: TJ, TA
The specifications of roughness used in industry are normally incomplete, and the incompleteness can induce a significant uncertainty, called specification uncertainty. It’s 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.
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    • R. K. Burdick, C. M. Borror, and D. C. Montgomery, Design and analysis of gauge R&R studies: Making decisions with confidence intervals in random and mixed ANOVA models, vol. 17. SIAM, 2005.
    • M. Down, F. Czubak, G. Gruska, S. Stahley, and D. Benham, Measurement system analysis reference manual, 4th ed. 2010.
    • D. C. Montgomery, Design and Analysis of Experiments, 7th Edition, no. 9780471316497. Wiley, 2009.
    • ISO 4288, “Geometric Product Specification ( GPS ) - Surface texture - Profile method : Rules and procedures for the assessment of surface texture,” 1998.
    • ISO 3274, “Geometric Product Specifications ( GPS ) - Surface texture : Profile method - Nominal characteristics of contact ( stylus ) instruments,” 1998.
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