System and methods for inspecting internal cracks

Details System and methods for inspecting internal cracks System and methods for inspecting internal cracks

G - Physics

01

N

G01N 27/90 (2006.01) G01M 99/00 (2011.01) G01N 37/00 (2006.01)

Patent

CA 2629707

A method (60) for inspecting an internal cavity (44) in a part (12) is provided. The method (60) includes inserting (62) a probe (14) into the internal cavity (44). The method (60) also includes controlling (62) movement of the probe (14) using a defined scan path to scan the probe (14) over a region of interest in the internal cavity (44). The method (60) also includes applying (64) multiple multifrequency excitation signals to the probe (14) to generate a number of multifrequency response signals. The multifrequency excitation signals are applied (68) at multiple positions within the internal cavity (14). The method (60) further includes performing a multifrequency phase analysis on the multifrequency response signals to inspect the internal cavity (14).

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