Apparatus for detecting a surface flaw of a material at high tem

Details Apparatus for detecting a surface flaw of a material at high tem Apparatus for detecting a surface flaw of a material at high tem

1977-02-15

1978-10-03

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

250333, 358106, 358113, 358163, H04N 718

Patent

active

041187326

ABSTRACT:
The present invention is an apparatus for detecting a surface flaw in hot metal including a particularly designed television camera, a shutter means and a control circuit which compensates the television camera's shading as well as the temperature difference among normal parts of the observed material.
The apparatus makes it possible to conduct clear detection of a flaw on the surface of the hot material as it is so that yield loss at the time of scarfing can be avoided while heat energy can effectively be utilized.

REFERENCES:
patent: 3158748 (1964-11-01), Laycak
patent: 3256435 (1966-06-01), Astheimer
patent: 3748383 (1973-07-01), Grossman
patent: 3812483 (1974-05-01), Graves
patent: 3909521 (1975-09-01), Hunt
patent: 3946232 (1976-03-01), Harmer
patent: 3988530 (1976-10-01), Ikegami

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