PROBLEM TO BE SOLVED: To provide an acceptance decision system of a material to be inspected in its flaw using novel ultrasonic flaw detection capable of easily and accurately performing acceptance decision at every material to be inspected in its flaw.;SOLUTION: The data related to the kind or material quality of the material Z to be inspected in its flaw Z is acquired and the data related to the acceptance standard of an internal flaw preliminarily prescribed at every material Z to be inspected in its flaw to inspect the presence of the internal flaw of the material Z to be inspected in its flaw. The acceptance at every material to be inspected in its flaw is determined on the basis of these data to display the decision results on a monitor. By this arrangement, the acceptance decision at every material Z to be inspected in its flaw can be easily and accurately performed without interposing an inspector.;COPYRIGHT: (C)2008,JPO&INPIT
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