Method of and an apparatus for inspecting a traveling sheet material
 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. 
Toei Denshi Kogyo Kabushiki Kaisha Kawasaki Steel Corporation
G
G01N
inventional
Shoji Yasumasa Tomohiro Masakazu Yasuhiko
Akutsu Watanabe Chaki Fujita Mashino