G - Physics – 01 – N
Patent
G - Physics
01
N
340/124.5
G01N 21/88 (2006.01) G01B 11/02 (2006.01) G01B 11/24 (2006.01) G06T 7/60 (2006.01)
Patent
CA 1313240
APPARATUS FOR INSPECTING CAN SEAMS AND THE LIKE ABSTRACT OF THE DISCLOSURE Apparatus is disclosed for detecting irregularities or flaws in seams such as the seams of cans. The apparatus includes means for irradiating the surface of the seam to produce reflected radiation signals, a plurality of radiation sensors, each having a selected field of view of the surface, and each producing sensor output signals dependent on reflected radiation signals received within such field of view. A signal processing means receives sensor output signals for a succession of fields of view along the longitudinal length of the seam and derives therefrom signal data representing a dimensional feature of the seam. Signal comparison means compares such derived data with signal data representing an acceptable dimensional limit and produces a rejection signal in the event that the dimensional feature does not fall within the limit. Means for classifying the nature of an irregularity is also disclosed, as is transport means for the movement of seams though the field of view of the sensors.
614841
Acres Robert W.
Davis Harold R.
Donham Andrew N.
Dower Roger G.
Riahi Nader
Acres Robert W.
Davis Harold R.
Donham Andrew N.
Dower Roger G.
Riahi Nader
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