Device for detecting surface flaws of rapidly moving sheet mater

Details Device for detecting surface flaws of rapidly moving sheet mater Device for detecting surface flaws of rapidly moving sheet mater

1980-11-20

1983-03-22

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

250341, 356430, G01N 2300, G01J 100, G01N 2184

Patent

active

043777465

ABSTRACT:
A device for detecting surface flaws of rapidly moving metal strip in rolling mills includes a lens which scans the sheet material surface and a camera tube which converts optical images of the lens into electrical values. These values are stored in a magnetic storage and are called out to be converted and displayed on an image reproducing device as a visible image. At least one image amplifier or image converter tube is interposed between the lens and the camera tube and includes an electronic speed shutter.

REFERENCES:
patent: 3454160 (1969-07-01), Schafer
patent: 4118732 (1978-10-01), Ichijima et al.
patent: 4302108 (1981-11-01), Timson
patent: 4306151 (1981-12-01), Chase

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