Image analysis – Applications – Manufacturing or product inspection
Patent
1993-05-13
1995-12-05
Boudreau, Leo H.
Image analysis
Applications
Manufacturing or product inspection
221200, G07F 1100
Patent
active
054737036
ABSTRACT:
An object sorter/counter for controlling the feed rate of a sorter/counter includes a feed bowl which is oscillated by an adjustable amplitude vibrator and an exit assembly having a chute with a sensor array for registering the passage of objects through the exit assembly. The feed bowl is provided with a shutter which interposes a photodetector and a light source so that light from the light source is blocked from detection by the photodetector intermittently as the feed bowl oscillates. A circuit coupled to the photodetector generates a series of pulses having widths inversely proportional the amplitude of bowl oscillation. A controller adjusts the vibrator to oscillate the feed bowl at a predetermined amplitude until the sensor array senses a first object. The controller then adjusts the vibrator to oscillate the feed bowl at a lower amplitude and monitors the sensing of other objects. Time intervals between objects being sensed are monitored and the controller adjusts the vibrator to oscillate the feed bowl at a lower or higher amplitude to maintain a constant feed rate. A count of objects sensed is maintained and compared to a predetermined maximum count. When the count of objects equals a predetermined number less than the maximum count, the controller adjusts the vibrator to oscillate the feed bowl at a lower amplitude to lower the feed rate. When the count of objects equals the maximum count, the controller activates a gate closing the chute.
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patent: 3915292 (1975-10-01), Brown
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Brochure & operating instruction for The KL25 Tablet Counter by Kirby Lester Incorporated, Copyright 1992.
Brochure & operating instruction for the KL50 Tablet Counter by Kirby Lester Incorporated, Copyright 1990.
Brochure & operating instructions for the KL100 Tablet Counter by Kirby Lester Incorporated, Copyright 1990.
Boudreau Leo H.
Gordon David P.
Kelley Chris
Kirby Lester Inc.
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