Sheet metal evaluator

Details Sheet metal evaluator Sheet metal evaluator

1985-04-01

1985-10-22

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Absorption

378 56, G01T 116

Patent

active

045493065

ABSTRACT:
An apparatus and method are disclosed for detecting voids in metal strip that are otherwise invisible through the use of X-ray radiation. The apparatus and method provide continuous and automatic inspection of sheet metal for localized voids through the continuous analysis of an electrical signal for departures from a norm, corresponding to homogeneousness, that represents such voids.

REFERENCES:
patent: 2632117 (1953-03-01), Vossberg
patent: 3727054 (1973-04-01), Herrick
patent: 4064440 (1977-12-01), Roder
patent: 4415980 (1983-11-01), Buchanan

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