HIGH-SPEED METHOD AND SYSTEM FOR OPTICALLY MEASURING A GEOMETRIC DIMENSION OF MANUFACTURED PARTS
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United States of America Patent
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app pub date -
Dec 14, 2012
filing date -
Mar 7, 2012
priority date (Note) -
Abandoned
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Abstract
High-speed method and system for optically measuring a geometric dimension of manufactured parts such as cartridge cases are provided. The parts are consecutively transferred so that the parts travel along a first path which extends to a vision station at which each part has a predetermined position and orientation for optical measuring. An annular, interior side surface of a part which at least partially defines a pocket such as a primer pocket is illuminated when the part is located at the vision station to generate corresponding reflected radiation signals. An optical image of the illuminated interior side surface is formed from the reflected radiation signals at a single image plane. The optical image is detected at the image plane and the detected optical image is processed to determine the geometric dimension which may be primer product diameter.
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