24 November 2016 High-speed image acquisition technology in quality detection of workpiece surface
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Abstract
High-speed image acquisition technology has a great significance to improve the effciency of the workpiece surface quality detection, image quality directly affects the final test results. Aiming at the high-speed image acquisition of workpiece surface quality online detection, a workpiece image high-speed online acquisition method was produced. A high-speed online image acquisition sequence was designed. The quantitative relationship between the positioning accuracy in the high speed online image acquisition, motion blur, exposure time and the speed of workpiece was analyzed. The effect between the vibration between transfer mechanism and workpiece was analyzed. Fast trigger was implemented by photoelectric sensor. The accurate positioning was implemented by using the high accuracy time delay module. The motion blur was controlled by reducing the exposure time. A high-speed image acquisition system was designed based on the high-speed image acquisition method. The positioning accuracy was less than 0.1 mm, and the motion blur was less than one pixel.
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Kaihua Wu, Zexuan Jin, Wenjie Wang, Nian Chen, "High-speed image acquisition technology in quality detection of workpiece surface", Proc. SPIE 10023, Optical Metrology and Inspection for Industrial Applications IV, 1002323 (24 November 2016); doi: 10.1117/12.2247840; https://doi.org/10.1117/12.2247840
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