Device for detecting surface flaws of rapidly moving sheet material
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United States of America Patent
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Mar 22, 1983
Grant Date -
N/A
app pub date -
Nov 20, 1980
filing date -
Dec 29, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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