Proceedings PaperDirect Comparison Of Mechanical And Optical Measurements Of The Finish Of Precision-Machined Surfaces
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Methods for analyzing surface profile data in terms of the finish power spectral density and mean-square finish error are discussed. Results of a preliminary comparison between mechanical- and optical-stylus measurements of a set of precision-machined surfaces are presented. Excellent quantitative agreement is obtained, although certain features observed in the case of strongly periodic surfaces require further study.