Evaluation of Measuring Capability of the Optical 3D Scanner

Abstract

The evaluation of the measuring capability of a measuring device is very important in the field of quality assurance. It is a part of a measurement system analysis. One of the measuring devices is the optical 3D scanner which is device for object digitization, in substance. This paper deals with the possibility of measuring a small objects, namely hard metal rod which is a semi product for cutting tool, e.g. end mill. The issue was the evaluation of the measuring capability of the GOM ATOS Triple Scan II optical 3D scanner when measuring the dimensions, i.e. tool diameter, with using of different measuring volumes. Measuring of a small objects is often difficult due to ensuring the measuring repeatability and low bias. Capability evaluation was performed using statistical methods, namely indices which define the measuring device capability. The work contributed to the practical knowledge about abilities of ATOS optical 3D scanner in reverse engineering and measuring processes, and to the determination of its measuring capability.