Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 18, 2009
0Patent Application Number
116173040
Date Filed
December 28, 2006
0Patent Citations Received
0
Patent Primary Examiner
Patent abstract
An NDI system includes an ultrasonic transducer and an electronic device having an indicator, such as a light source. The electronic device energizes the transducer, receives sinusoidal signals from the transducer, determines impedance-plane coordinates corresponding to quadrature-phase separated components of the sinusoidal signals, and automatically activates the indicator if impedance-plane coordinates exceed a preset threshold. The system may be used in methods of inspecting layered structures such as composite aircraft components and repair patches applied to such structures.
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