Test procedures and artefacts for optical coordinate metrology

Ulrich Neuschaefer-Rube; Wiebke Ehrig; Michael Neugebauer; Klaus Wendt

doi:10.1117/12.810474

12 January 2009 Test procedures and artefacts for optical coordinate metrology

Ulrich Neuschaefer-Rube, Wiebke Ehrig, Michael Neugebauer, Klaus Wendt

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 713304 (2009) https://doi.org/10.1117/12.810474
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

Abstract

Optical measurements are performed in coordinate metrology in a wide range of applications, ranging from large-scale workpieces with dimensions of several meters down to microstructures with &mgr;m-dimensions, using a large number of different measurement devices and sensors. These different devices and sensors must be tested to check their compliance with the specifications, to trace back the measurement results and to compare different devices. Thus, appropriate procedures and measurement standards (artefacts) are necessary. We present test procedures and artefacts for optical measurement systems similar to the well-known test procedures for classical tactile coordinate measuring machines (CMMs) according to the international standard ISO 10360. It is important that the surface characteristic of the artefacts is cooperative to the sensor. Appropriate artefacts were realized and tested. The main focus of this paper is on micro-artefacts. Furthermore, task-related standards to trace back specific measurement tasks were developed. By means of micro-contour artefacts, the measurement characteristics on critical geometries can be evaluated and compared. By means of a micro-gear standard, the measurement uncertainty on micro-planetary gear can be evaluated. The measurement deviations of measurement systems in the automotive industry can be determined with the special artefacts to test sensors for inline measurements.

Citation Download Citation

Ulrich Neuschaefer-Rube, Wiebke Ehrig, Michael Neugebauer, and Klaus Wendt "Test procedures and artefacts for optical coordinate metrology", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 713304 (12 January 2009); https://doi.org/10.1117/12.810474

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