• Optics and Precision Engineering
  • Vol. 27, Issue 11, 2343 (2019)
CHEN Dong-yang1,2,*, GUO Qing-yuan1, DONG Wen-bo1, HE Huan3..., YU Jian-ding3, ZHANG Dong-wei4 and LIANG Xue-feng4|Show fewer author(s)
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • 4[in Chinese]
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    DOI: 10.3788/ope.20192711.2343 Cite this Article
    CHEN Dong-yang, GUO Qing-yuan, DONG Wen-bo, HE Huan, YU Jian-ding, ZHANG Dong-wei, LIANG Xue-feng. Control system of electrostatic levitation based on high-speed vision[J]. Optics and Precision Engineering, 2019, 27(11): 2343 Copy Citation Text show less

    Abstract

    Electrostatic levitation is one of the most important methods used to study the properties of materials without having to collide them against the wall of a chamber. A dynamic, ground electrostatic levitation control system model is designed and built using two Graphics Processing Units (GPUs) to process the image sequence and calculate the position of the material. In addition, a real-time detection algorithm is proposed for quick real-time visual detection of the targets. The melting experiment of the material is realized with an open-loop and Proportional-Integral-Derivative (PID) controller. This eliminates the charge supplement device of the deep ultraviolet lamp, and an image processing speed of 700 frames per second at the resolution of 304 pixels × 304 pixels and control precision of approximately ±0.02 mm are achieved. Furthermore, the relevant parameters concerning the control effects between the simulation model and experiments are consistent. For a disturbance of 900 V, which causes the acceleration of the material to reach approximately 1.274 m/s2, the system can stabilize in 340 ms. Therefore, the feasibility and reliability of an electrostatic levitation control system based on high-speed vision and the accuracy of its dynamic model were proved.
    CHEN Dong-yang, GUO Qing-yuan, DONG Wen-bo, HE Huan, YU Jian-ding, ZHANG Dong-wei, LIANG Xue-feng. Control system of electrostatic levitation based on high-speed vision[J]. Optics and Precision Engineering, 2019, 27(11): 2343
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