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Assessment of uncertainty in structured surfaces using metrological characteristics,

Macaulay, G D; Giusca, C L (2016) Assessment of uncertainty in structured surfaces using metrological characteristics,. CIRP Ann., 65 (1). pp. 533-536.

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Structured surfaces are increasingly popular for many applications and are characterised by dimensional properties, such as feature diameter, often measured without an uncertainty or one given by a reproducibility analysis, which does not account for systematic effects. This paper presents a method to assess uncertainty in structured surfaces using the instrument¿s metrological characteristics and applies it to an example surface. Information, such as the flatness map, was used to estimate the uncertainty via Monte Carlo simulations, as single values of the metrological characteristics, which are normally estimated, do not give enough information. The standard uncertainty of a feature on the surface was slightly larger than a reproducibility study on the same surface, but this approach accounts for additional sources of uncertainty due to systematic effects.

Item Type: Article
Subjects: Engineering Measurements
Engineering Measurements > Dimensional
Identification number/DOI: 10.1016/j.cirp.2016.04.068
Last Modified: 02 Feb 2018 13:13
URI: http://eprintspublications.npl.co.uk/id/eprint/7195

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