Optics: measuring and testing – Inspection of flaws or impurities – Having predetermined light transmission regions
Patent
1997-10-14
1998-07-07
Pham, Hoa Q.
Optics: measuring and testing
Inspection of flaws or impurities
Having predetermined light transmission regions
356241, 356386, 356387, G01N 2100
Patent
active
057777306
ABSTRACT:
Methods and apparatus for automated inspection of stator cores are described. In one embodiment, a coherent light transmitter and a light detector are optically aligned so that the detector is in the path of an optical signal emitted from the light transmitter when such signal propagates substantially uninterrupted. The light transmitter and detector are also spaced from each other at a distance sufficient to allow a stator core to be moved, e.g., translated or rotated, therebetween. Output signals from the detector are processed to determine whether the core is acceptable.
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Pham Hoa Q.
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