Method of and an apparatus for inspecting a traveling sheet mate

Details Method of and an apparatus for inspecting a traveling sheet mate Method of and an apparatus for inspecting a traveling sheet mate

1976-07-16

1978-08-29

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

250563, G01N 2116

Patent

active

041100484

ABSTRACT:
A method of and an apparatus for inspecting a traveling sheet material, in which the ability to detect a defect is made as close to the identifying ability of man's visual inspection as possible, the detected defect is converted into an electrical signal and separated into four factors of width, quantity, depth or density, and length to make the sorting process most economical, the factors are discriminated to be of high, medium or low class, respectively, and the discriminated defect factors are synthetically judged through a decision circuit according to a defect pattern.

REFERENCES:
patent: 3096443 (1963-07-01), Laycak
patent: 3515488 (1970-06-01), Houser
patent: 3779649 (1973-12-01), Bertoya
patent: 3781117 (1973-12-01), Laycak et al.
patent: 3781531 (1973-12-01), Baker
patent: 3833816 (1974-09-01), Emura et al.

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