Giusca, C L; Smith, I M (2013) Areal lateral calibration software: user manual. NPL Report. ENG 45

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Abstract

This report constitutes a {\em user manual} for software developed at the National Physical Laboratory to calculate the locations of the centres of gravity of the protrusions of a calibrated cross-grating artefact from measurements of the artefact. The calculated locations may then be compared with corresponding reference locations. The software enables users to process an ASCII file containing values of a surface measured on a two-dimensional grid of points. The software is provided in the form of a standalone executable and the locations of the centres of gravity of the protrusions are written to an ASCII results file. The user may also provide a second ASCII file containing reference locations of the centres of gravity of the protrusions. The software applies a transformation to the reference locations, determines the differences between the calculated locations and the transformed reference locations, and writes those differences to the ASCII results file.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	ENG 45
Keywords:	lateral calibration
Subjects:	Engineering Measurements Engineering Measurements > Dimensional
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/6103

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