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Advances in Automated Inspection Using Contactless Head Height and Countersink Measurement Techniques
ISSN: 1946-3979, e-ISSN: 1946-3987
Published September 17, 2013 by SAE International in United States
Citation: Meiners, C., "Advances in Automated Inspection Using Contactless Head Height and Countersink Measurement Techniques," SAE Int. J. Mater. Manf. 7(1):33-36, 2014, https://doi.org/10.4271/2013-01-2148.
For decades optical camera systems have been used by Broetje-Automation to locate pilot holes and find product orientation on NC-controlled positioner systems.
Measurement tolerance requirements were and are in the range of +/− 0.2 mm. Recent developments enhance the sensor technology function from pure hole detection to new features like Fastener Head Height Measurement and Countersink Diameter Measurement. While head height measurement has to go 3D by enhancing the planar sensors to head protrusion measurement, the Countersink measuring tolerances are much smaller than “simple” hole detection, in fact require more than a magnitude tighter tolerances.
This paper will present how Broetje-Automation solved the issue of a 20 plus fold accuracy increase, the 3D capability of the one eyed camera and all accompanied by a more robust evaluation software.
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