Analysis of the measurement capability of optical fringe projection systems

Peter Kuehmstedt; Joerg Gerber; Matthias Heinze; Gunther Notni

doi:10.1117/12.501037

30 May 2003 Analysis of the measurement capability of optical fringe projection systems

Peter Kuehmstedt, Joerg Gerber, Matthias Heinze, Gunther Notni

Proceedings Volume 5144, Optical Measurement Systems for Industrial Inspection III; (2003) https://doi.org/10.1117/12.501037
Event: Optical Metrology, 2003, Munich, Germany

Abstract

Quality control describes numerous methods for monitoring the quality of a production process. With respect to this it will be a growing requirement on optical 3D-measurement techniques to reach the demands of the measurement capability. Here the limitations to fulfill these demands under industrial conditions are discussed when using fringe-projection technique for 3D-measurement. The analysis is done while measuring an automotive stamping part and a 3D-gauge with a telecentric fringe projection system, as examples. In the analysis we determined some geometric features like diameter of hole and bending angles of parts of the object surface. The results demonstrate the possibility to achieve a standard deviation of lower than 1 μm within a measurement volume of 90 mm in diameter for the geometric features. Due to the low standard deviation a measurement capability has been reached like tactile measurement systems. To achieve this the influence of the locale choice of the geometric fitting procedure onto the point cloud has to be taken into account.

Citation Download Citation

Peter Kuehmstedt, Joerg Gerber, Matthias Heinze, and Gunther Notni "Analysis of the measurement capability of optical fringe projection systems", Proc. SPIE 5144, Optical Measurement Systems for Industrial Inspection III, (30 May 2003); https://doi.org/10.1117/12.501037

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