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Development of a new traceable areal surface texture measuring instrument.

Leach, R K; Flack, D R; Hughes, E B; Jones, C W (2009) Development of a new traceable areal surface texture measuring instrument. Wear, 266. pp. 552-554.

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Abstract

There is a clear need in industry and academia for traceable areal surface texture measurements. To address this need traceable transfer artefacts and primary instrumentation are required. The National Physical Laboratory (NPL), UK has recently completed two projects - one to develop areal transfer artefacts and one to develop a traceable areal surface texture measuring instrument. The authors describe the development of this instrument, with a working volume of 10 mm x 10 mm x 0.1 mm. The instrument uses a co-planar air-bearing slideway to move the sample. It also uses a novel vertical displacement measuring probe, incorporating an air-bearing and an electromagnetic mass-offsetting mechanism. The motions of the slideway and the probe are measured by laser interferometers thus ensuring traceability of the measurements to the definition of the metre. A description is given of the main sub-systems that make up the instrument are described and very preliminary results presented.

Item Type: Article
Keywords: Surface Texture, Areal, Traceability
Subjects: Engineering Measurements
Engineering Measurements > Dimensional
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4355

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