DEVELOPMENT OF DIMENSIONAL X-RAY COMPUTED TOMOGRAPHY

Hiroyuki Fujimoto

Abstract

Recently, a dimensional X-ray computed tomography system that is capable of dimensional measurements is strongly waited because the realization of dimensional measurements for outward forms and inward forms on dense spatial points in short time duration remarkably simplifies and accelerates production loop. However the obtained image of the XCT describes the structure clear and in great detail, the realization of the dimensional metrology by the XCT is not simple. <BR />National metrology institute of Japan have been continued the performance test using gauges that includes the gauges proposed in ISO10360. The magnification variation correction is carefully introduced and that the maximum deviation of less than 5 µm is shown to be possible by the measurement of the forest phantom of 27 sapphire balls whose locations are calibrated by the coordinate measuring machine.

Keywords

X-ray Computed Tomography, dimensional measurement, phantom, industrial standards

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IMEKO-TC14-2014-36.pdf

DOI

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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