Apparatus and method for evaluating shape of three-dimensional object
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United States of America Patent
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May 6, 1997
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N/A
app pub date -
Aug 2, 1996
filing date -
Jun 22, 1993
priority date (Note) -
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Abstract
An apparatus for evaluating the shape of a three-dimensional object by comparing direct measurements of the surface of an actual worked version of the object with its ideal shape. A representation of an ideal surface of the object based upon reference data is set within a given space. A worked surface of the object is also set within the given space, based upon measurements of the worked surface at several measurement points. A processor calculates the intersection point on the ideal surface of the line extending from each of the measurement points that perpendicularly intersects the ideal surface. The distance between each intersection point and its corresponding measurement point is calculated to evaluate the precision of the worked surface.
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