Detecting apparatus for inserts, thickness unevenness or impurit

Details Detecting apparatus for inserts, thickness unevenness or impurit Detecting apparatus for inserts, thickness unevenness or impurit

1977-06-23

1979-08-21

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

250505, 250358T, G01N 2300, G02B 500

Patent

active

041654617

ABSTRACT:
Radiant rays irradiated from the source penetrate through an object in which inserts or the like are disposed at some distances. A radiant ray detector is provided at the opposite side of the object to the source to detect the radiant rays passed through and somewhat absorbed in the object. A slit or collimator is arranged movable along the object between the source and the detector. The output of the detector changes in accordance with the travel of the slit since the absorption coefficient of the inserts is different from that of the matrix. The output is displayed with a graphic display and further is operated into digital signals for computer input or indicating. The position signal of the slit is used for the display and for digital indicating.

REFERENCES:
patent: 3452193 (1969-06-01), Petersen
patent: 3840747 (1974-10-01), Macovski
patent: 3854046 (1974-12-01), Wood

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