Foreign matter detecting device

Details Foreign matter detecting device Foreign matter detecting device

G - Physics

01

N

340/124.6

G01N 21/90 (2006.01) B07C 5/12 (2006.01) G01N 33/00 (2006.01)

Patent

CA 1125883

ABSTRACT OF THE DISCLOSURE In general, used beer, alcoholic drink or soft drink bottles are collected to be used again. Such used returnable bottles often have foreign matters such as dust and leavings or cracks, and they must be removed from the bottling line before or after the bottle cleaning process. This invention positively satis- fies such a requirement. The foreign matter detect- ing device comprises: a photoelectric conversion device having a number of light receiving elements; and a video signal processing device for continuously sub- jecting to comparison and discrimination the detec- tion signals of two adjacent points which are detected by the photoelectric conversion device, to determine whether or not the bottle has a foreign matter.

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