Detection of defects by thermographic analysis

Details Detection of defects by thermographic analysis Detection of defects by thermographic analysis

2008-07-22

2008-07-22

Guadalupe-McCall, Yaritza (Department: 2859)

Thermal measuring and testing

Leak or flaw detection

With heating or cooling of specimen for test

C374S057000

Reexamination Certificate

active

07401976

ABSTRACT:
A mechanism is provided for detecting a defect in a populated sample having a thickness dimension substantially smaller than the length and width dimensions thereof, the populated sample having a first side and an opposite second side, at least said first side of said populated sample having one or more Surface Mounted Components. The mechanism exploits a standard thermographic image which may be used in a detection method comprising1) directing a thermal wave at said second side of said populated sample2) recording a thermographic image of the first side of said populated sample once a surface thereof reaches a predetermined transit temperature or a predetermined transit time period has elapsed; and3) analysing the obtained thermographic image by comparing the so obtained thermographic image with a standard thermographic image.

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