Inventors:
John J. Peyton - Santa Barbara CA
Assignee:
Industrial Automation Corporation - Goleta CA
International Classification:
G01N 2124
Abstract:
An electronic bottle inspector having particle and liquid detection capabilities through the use of sensing systems in the visible and infra-red light range. For particle inspection in the visible light range, light from a source, typically an incandescent source passing through the bottom of a bottle, is focused above the neck of the bottle to preset an image of the bottom of the bottle on a rotating scanner characterized by a generally non-reflective background having one or more reflecting segments thereon. The scanner rotates at high speed so that the reflecting segment or segments scans the image focused thereon, with at least the reflective segments being contoured so the light falling thereon from the respective portion of the bottle bottom image is focused onto a detector. The particulate matter on the bottom of the bottle will block the light, creating a dip in detector output when that portion of the image is scanned. For liquid detection one or more holes are provided through the non-reflective portions of the scanner, with an infra-red detector being located therebehind to detect the infra-red radiation passing through the holes.