| 摘要 |
PCT No. PCT/DE92/00101 Sec. 371 Date Aug. 29, 1993 Sec. 102(e) Date Aug. 29, 1993 PCT Filed Feb. 11, 1992 PCT Pub. No. WO92/14117 PCT Pub. Date Aug. 20, 1992.The description relates to a process for determining the position of a positioning body in relation to a reference body in which the positioning body has a scale with markings at constant distances and the reference body has a scanner with a projection surface on which the markings of the scale are projected by imaging optics. The coordinates of the projection center of the imaging optics are trigonometrically calculated from the projection angles between the projection center and three markings arranged on the scale and from the constant distance between the markings. In addition, the angle of inclination of the positioning body in relation to the reference body is trigonometrically calculated via the co-ordinates found for the projection center, the distance between the projection center from the projection surface of the scanner and the image co-ordinates of the base of the vertical position of the position center above the projection surface.
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