Method and apparatus for determining the position of the center

Details Method and apparatus for determining the position of the center Method and apparatus for determining the position of the center

1983-08-30

1985-06-11

Frankfort, Charles

Geometrical instruments

Miscellaneous

Light direction

901 46, G01B 728

Patent

active

045219664

ABSTRACT:
The invention relates to a method and apparatus for determining the position of the center of a circular object. The object has a known diameter and is placed on a preferably flat surface. A sensor for indicating presence of an object proximate it is moved over the surface in a predetermined path comprising a number of line portions extending over the surface. The greatest distance between two adjacent line portions being less than the radius of the object. The position of the sensor in the path is measured at two points where the line portion intersects the outer contour of an object. The center of the object is determined on the basis of the two points.

REFERENCES:
patent: 3241243 (1966-03-01), Speer
patent: 3628497 (1971-12-01), Neu
patent: 4155173 (1979-05-01), Sprandel
patent: 4219847 (1980-08-01), Pinkney et al.
patent: 4430796 (1984-02-01), Nakagawa

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