Exploratory analysis of voxel size effects on CT measurements of situation characteristics of type point-to-point distance

8th Brazilian Congress on Metrology

Fernandes, T.L.^1 ; Donatelli, G.D.^1 ; Baldo, C.R.^2

Centre for Metrology and Instrumentation - CMI, Reference Centres for Innovative Technologies - CERTI, Florianopólis

SC, Brazil^1

Centre for Engineering, Modelling and Applied Social Sciences - CECS, UFABC - Federal University of ABC, Santo André

SP, Brazil^2

关键词: Exploratory analysis;    Industrial metrology;    Measurement uncertainty;    Measurements of;    Measuring distances;    Non destructive;    Offset errors;    Point to point;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012057/pdf
DOI  :  10.1088/1742-6596/733/1/012057

来源: IOP

【 摘 要 】

In recent years, computed tomography (CT) has been applied as an industrial metrology tool for the dimensional evaluation of visible and even hidden features of production parts in a non-destructive manner. Considering the experimental findings of a recent work of the authors, this paper deals with the effect of voxel size on measuring distances between feature-of-size centers, which would be less sensitive to edge offset errors. Particular attention is given to the design of experiment and to the measurement uncertainty sources. The most significant experimental findings are outlined and discussed in this paper.