Archives > Volume 12 | Number 3 | September 2017 > pp 245–253
Advances in Production Engineering & Management
Volume 12 | Number 3 | September 2017 | pp 245–253
Capabilities of industrial computed tomography in the field of dimensional measurements
Horvatić Novak, A.; Runje, B.; Stepanić, J.
ABSTRACT AND REFERENCES (PDF) |
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A B S T R A C T
The paper discusses the capabilities of industrial computed tomography (CT) in the field of dimensional measurement of products with close tolerances. Computed tomography is a method that allows inspection and measurements of both reachable and unreachable characteristics which makes it very desirable and interesting for application in wide range of industries. In order to evaluate the quality of measurement results obtained by industrial CT, two objects with the same geometry, and made from different materials, were measured. Results obtained with CT were compared with the results obtained by coordinate measuring machine, which were considered to be reference values, and deviations between the results have been analysed. Measurements were repeated five times under repeatability conditions. Repeatability is expressed quantitatively in terms of the dispersion characteristics of the results. Statistical analysis showed that in majority of cases, there were no statistically significant differences between measurement results of equal characteristics obtained at different materials. Obtained deviations in the research could be explained by the fact that the measurements were performed at the industrial CT for general applications. Much better results can be achieved by using a metrology CT device.
A R T I C L E I N F O
Keywords • Metrology, Dimensional measurement, Metrological traceability, Computed tomography (CT)
Corresponding author • Horvatić Novak, A.
Article history • Received 27 March 2017, Revised 15 May 2017, Accepted 12 June 2017
Published on-line • 28 July 2017
E X P O R T C I T A T I O N
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