| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an eddy current flaw detection method capable of accurately evaluating a lift off amount even when a curved surface is inspected by using a flexible probe. <P>SOLUTION: There is used an eddy current flaw detection probe in which the arrangement direction of an exciting coil 1A and a detection coil 1B is the same as the direction of the curved surface of an inspection surface. In the step S60, in a signal before setting an eddy current probe on the inspection surface until setting the probe, a magnitude relation between the maximum signal value V0 of X or Y component and the signal value V1 at the time of setting is compared. Then, in the steps S70 and S80, the lift-off value is determined from the lift-off characteristics using any of the signal values of the X component or Y component generated when the eddy current probe is adhered on the inspection surface, lift-off characteristics, maximum signal value V0 and signal value V1 at the time of setting. <P>COPYRIGHT: (C)2012,JPO&INPIT |
