The Impact of an Object’s Surface Material and Preparatory Actions on the Accuracy of Optical Coordinate Measurement
Danuta Owczarek, Ksenia Ostrowska, Jerzy Sładek, Adam Gąska, Wiktor Harmatys, Krzysztof Tomczyk, Danijela Ignjatović, Marek Sieja
TL;DR
This paper explores how surface materials and matting affect the accuracy of optical measurements in industrial settings.
Contribution
The study introduces a classification of materials into easy-to-scan and hard-to-scan groups and proposes procedures to improve measurement accuracy.
Findings
Matting significantly reduces measurement uncertainty for certain materials.
Materials like titanium nitride-coated steel benefit most from the matting process.
Measurement accuracy correlates strongly with material type and surface finish.
Abstract
Optical coordinate measurement is a universal technique that aligns with the rapid development of industrial technologies and new materials. Nevertheless, can this technique be consistently effective when applied to the precise measurement of all types of materials? As shown in this article, an analysis of optical measurement systems reveals that some materials cause difficulties during the scanning process. This article details the matting process, resulting, as demonstrated, in lower measurement uncertainty values compared to the pre-matting state, and identifies materials for which applying a matting spray significantly improves the measurement quality. The authors propose a classification of materials into easy-to-scan and hard-to-scan groups, along with specific procedures to improve measurements, especially for the latter. Tests were conducted in an accredited Laboratory of…
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Taxonomy
TopicsAdvanced Measurement and Metrology Techniques · Optical measurement and interference techniques · Surface Roughness and Optical Measurements