System and method for multiple mode flexible excitation in sonic infrared imaging
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United States of America Patent
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Jun 6, 2006
Grant Date -
Aug 4, 2005
app pub date -
Mar 1, 2005
filing date -
Aug 28, 2002
priority date (Note) -
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Abstract
A defect detection system for thermally imaging a structure that has been energized by a sound energy. The system includes a transducer that couples a sound signal into the structure, where the sound signal causes defects in the structure to heat up. In one embodiment, the sound signal has one or more frequencies that are at or near an eigen-mode of the structure.
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