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Uncertainty evaluation for a new traceable areal surface texture measuring instrument.

Giusca, C L; Forbes, A B; Leach, R K (2009) Uncertainty evaluation for a new traceable areal surface texture measuring instrument. In: 12th International Conference on Metrology and Properties of Engineering Surfaces, 8-10 July 2009, Rzeszów, Poland.

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Abstract

A traceable areal surface texture measuring instrument has recently been developed at the National Physical Laboratory (NPL). The instrument uses a stylus probe and the relative positions of the measured points on a surface are inferred from laser interferometers. This paper presents the method used to estimate the uncertainty associated with the new traceable instrument. A geometrical model of the instrument has been constructed and a Monte Carlo technique has been used to propagate the uncertainties associated with the point co-ordinate. This is analogous to the method used in coordinate metrology referred to as a 'virtual CMM' method. The mathematical model is presented along with the influence factors and some preliminary results.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keywords: Areal Surface Texture, Contact Stylus, Monte Carlo, Uncertainty
Subjects: Engineering Measurements
Engineering Measurements > Dimensional
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4462

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