Product discrimination system and method therefor

Details Product discrimination system and method therefor Product discrimination system and method therefor

1992-10-30

1994-02-15

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250226, 25022711, 209586, G01N 2186

Patent

active

052869806

ABSTRACT:
A product discrimination system using a fiber optic sensing system and a line scan camera sensor for recalibration of the fiber optic system. A plurality of fiber optic sensing stations measure reflected light spectra of products conveyed past the stations. The line scan camera is positioned adjacent one of the fiber optic sensors at one of the stations. A standard object is positioned adjacent conveyor so as to also be viewed by the line scan camera. The line scan camera recalibrates itself based on the standard object and is compared with the adjacent fiber optic station to recalibrate results from the fiber optic system.

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patent: 4106628 (1978-08-01), Warkentin et al.
patent: 4825068 (1989-04-01), Suzuki et al.
patent: 4961489 (1990-10-01), Warkentin
patent: 5018864 (1991-05-01), Richert
patent: 5029692 (1991-07-01), Warkentin
patent: 5106195 (1992-04-01), Richert
patent: 5156278 (1992-10-01), Aaron et al.

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