Method of detecting defects in materials using infrared thermogr

Details Method of detecting defects in materials using infrared thermogr Method of detecting defects in materials using infrared thermogr

1996-11-12

1998-11-10

Oda, Christine K.

Measuring and testing

Instrument mechanism or transmission

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374 5, G01N 2572

Patent

active

058346619

ABSTRACT:
A method of detecting defects in materials using infrared thermography, includes placing the rear surface of an object to be inspected close to the front surface of a thermoplate controlled by a temperature controller, and the front surface of the object in a vacuum chamber. At the other end of the vacuum chamber, on the outside, an infrared camera is arranged facing the object, so that a vacuum is maintained between the object and the camera. Defects are detected from thermal images of the object, obtained with the infrared camera.

REFERENCES:
patent: 5144149 (1992-09-01), Frosch
patent: 5292195 (1994-03-01), Crisman, Jr.
patent: 5505543 (1996-04-01), Webbeking

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