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Uncertainty evaluation for the calculation of a surface texture parameter in the profile case.

Harris, P M; Leach, R K; Giusca, C (2011) Uncertainty evaluation for the calculation of a surface texture parameter in the profile case. In: 13th International Conference on Metrology and Properties of Engineering Surfaces., 12-15 April 2011, Twickenham Stadium, UK.

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Abstract

Consideration is given to the problem of uncertainty evaluation for an amplitude surface texture parameter. A formulation of the problem is given in terms of a measurement model that defines the mathematical relationship between all quantities involved in the measurement and the available information about those quantities. The applications of two approaches to solving the formulated problem, namely the conventional approach of `uncertainty propagation' and a Monte Carlo method that provides a more generally applicable approach, are indicated. Results obtained from the two approaches for simulated measurement data are compared. It is found that, for a particular amplitude parameter, there can be appreciable differences between the estimates of the parameter although the standard uncertainties returned by the two methods are in good agreement.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keywords: surface texture parameter, uncertainty evaluation, GUM, uncertainty framework, Monte Carlo method
Subjects: Mathematics and Scientific Computing
Mathematics and Scientific Computing > Measurement Uncertainties
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/4971

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