Apparatus and system for thermographic identification of parts

Details Apparatus and system for thermographic identification of parts Apparatus and system for thermographic identification of parts

1987-09-02

1989-01-03

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

283 88, G01J 122, G06K 1906

Patent

active

047959061

ABSTRACT:
A method and apparatus for the non-destructive identification of coated and uncoated metal parts employing infrared thermography. The apparatus comprises a means for directing infrared radiation onto the surface of a part; a means for scanning the part surface for reflected infrared radiation; a means for capturing the reflected radiation and converting it into a signal representative of variations in radiation reflected from the surface of the part; means for etching an identifying code into the surface of the part; and means for displaying the signal as a video image. The method comprises altering the surface reflective characteristics of a part to produce an identifying code, irradiating the part with infrared radiation of a specific wavelength and detecting differences in the amount and intensity of radiation reflected from the part.

REFERENCES:
patent: 4157784 (1979-06-01), Grottrup
patent: 4469725 (1984-09-01), Fischer et al.

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