| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection method and an ultrasonic flaw detector for accurately detecting flaw in an inspected part, including a joint part of a complex shape which extends along the joint part, as to two members mutually connected via the joint part. SOLUTION: On a flaw detection surface 53, a transmitting probe 12a and a receiving probe 12b are juxtaposed/disposed, in a direction orthogonal or substantially orthogonal to the inspected part 55 extending along the joint part We. This method is such that ultrasonic waves are transmitted from the transmitting probe 12a toward the inspected part 55, while both the probes 12 are moved along the inspected part 55 on the detection surface 53, and that the ultrasonic waves which are diffracted or reflected by a flaw CL are received by the receiving probe 12b, when there is the flaw CL generated in the inspected part 55. COPYRIGHT: (C)2009,JPO&INPIT
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