engleski

Proposal of a Reference Object in Dimensional Measurements using Computed Tomography

Computed tomography is a non-destructive method that uses the nature of X-ray in order to measure both inner and outer objects’ geometry. Because of many advantages and possibilities of conducting both material analysis inspection and dimensional measurement in a non- destructive way, the method is increasingly represented in industry. However, the method is very complex and has a huge number of influence parameters that cause errors in measurement results. Consequently, the measurement uncertainty as well as metrological traceability in general case are not achieved. In order to minimize and eliminate systematic errors, the reference objects are used. The usage of reference object in purpose of identification and compensation of systematic errors is a generally accepted approach to ensure traceability. This article gives an overview of existing reference objects used in CT metrology and present a new reference object.

computed tomography ; dimensional measurement ; metrological traceability ; reference object ; systematic erro

Article has been accepted for publication in the journal Tehnički vjesnik/Technical Gazette (Print: ISSN 1330-3651, Online: ISSN 1848- 6339), Vol. 28/No. 5 to be published towards the end of October 2021.