Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2006-06-20
2006-06-20
Gagliardi, Albert (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
C250S341100
Reexamination Certificate
active
07064331
ABSTRACT:
A method and apparatus for calibrating an acoustic thermography system10and/or enhancing the flaw detection abilities of such a system is provided. The method allows applying a material (e.g.,103) to a specimen12undergoing acoustic thermography inspection. The material is thermally responsive to acoustic energy transmitted to the specimen by the acoustic thermography system. In one aspect thereof, a thermal response of the material applied to the specimen when subjected to acoustic energy is processed to determine whether the level of acoustic energy applied by the acoustic thermographic system appropriately meets a desired amount of acoustic energy for inspecting the specimen. In another aspect thereof, the thermal response of the specimen in combination with the applied material may be processed to determine whether certain types of flaws (e.g., relatively wide flaws) are actually present in the specimen or to enhance the detectability of other flaws that would only faintly show up on the infrared images.
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Homma Christian
Rothenfusser Max
Shannon Robert E.
Vona Paul D.
Zombo Paul John
Gagliardi Albert
Siemens Power Generation, Inc.
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