Volume 3Issue 5
Nov. 2010
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GENG Tian-wen, LIU Jian-hong, LIU Shao-jin, LIU Chang. Design of high-precision optical measuring centering device[J]. Chinese Optics, 2010, 3(5): 467-473.
Citation: GENG Tian-wen, LIU Jian-hong, LIU Shao-jin, LIU Chang. Design of high-precision optical measuring centering device[J].Chinese Optics, 2010, 3(5): 467-473.

Design of high-precision optical measuring centering device

  • Received Date:11 May 2010
  • Rev Recd Date:13 Jul 2010
  • Publish Date:25 Oct 2010
  • A set of optical measuring centering device is designed, which is composed of an area array CCD camera, an set of optical lens, image processing circuits, a red LED lamp-house, and a spherical surface reflector. The measuring principle of the device is introduced. The measuring objects are arranged in isosceles triangle, and the image of object is collected by a area array CCD and is processed in real time by the image processing circuits. At the same time, four dimension coordinate data(X,Y,X, and rotation angles) are calculated. The calculation expressions of the coordinate of spot image, the distance between the two planes and so on, are deduced and the measuring precision is analyzed. Experimental results indicate that the deviation of position is less than 1 mm and the deviation of angle is 0.24, which shows that the device can realize the high-precision, automatic and expeditiousness measurement.

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