Examination of interior surfaces using glow-discharge illuminati

Details Examination of interior surfaces using glow-discharge illuminati Examination of interior surfaces using glow-discharge illuminati

1976-11-09

1978-07-25

Corbin, John K.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

250461R, G01N 2116

Patent

active

041025822

ABSTRACT:
Endoscopic examination of the interior of a hollow structure through a light pipe that is inserted into the structure, the interior being illuminated by means of a glow discharge that is established with a high voltage applied between the structure wall as one electrode and a second electrode that is inserted into the structure, or establishing the glow with two electrodes inserted into the structure.

REFERENCES:
patent: 2002768 (1935-05-01), Erickson
patent: 2541976 (1951-02-01), Bogart
patent: 2973450 (1961-02-01), Restau

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