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ISO compliant reference artefacts for the verification of focus variation-based optical micro-coordinate measuring machines.

Hiersemenzel. F*,, ; Claverley, J D; Singh, J*; Petzing, J N*; Helmli, F*; Leach, R K (2013) ISO compliant reference artefacts for the verification of focus variation-based optical micro-coordinate measuring machines. In: Proceedings of the 13th euspen International Conference, 27-31 May 2013, Berlin, Germany.

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Abstract

Demand form micro-coordinate measuring machines (micro-CMMs) within industry is increasing due to the need for accurate measurement of the geometry of small-scale objects. Optical micro-CMMs have the advantage over traditional stylus-based CMMs of being non-contact instruments, and have the ability to acquire large amounts of data, with high resolution, in a relatively short period of time. The focus variation (FV) technique is typically used in the field of surface topography measurement, but has the potential to be implemented as a sensor technology for optical micro-CMMs. Exploring the possibility of the FV technique as an optical micro-CMM requires that the instrument and measuring procedure can be performance verified. Consequently, a prototype FV based optical micro-CMM should have a verification route that is traceable to the definition of the metre.
This paper proposes a design for a calibration artefact that is suited to volumetric verification for micro-CMMs based on the FV technique and recognizes recent developments of ISO 10360.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: Engineering Measurements
Engineering Measurements > Dimensional
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5824

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