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Comparison test piece and ultrasonic phased array flaw detection test method
Comparison test piece and ultrasonic phased array flaw detection test method
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机译：比较试验片和超声相位阵列探伤试验方法
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摘要
PROBLEM TO BE SOLVED: To provide a reference test piece and a supersonic phased array flaw testing method, capable of finely adjusting sensitivity of a supersonic flaw test device having a matrix array probe and checking performances of the matrix array probe.;SOLUTION: A reference test piece 10 is for sensitivity adjustment of a supersonic flaw test device used for supersonic flaw test including a matrix array probe 3 formed by two-dimensionally arraying a plurality of ultrasonic elements 3a, and comprises: a flaw detection surface 11 on which the matrix array probe 3 is arranged; and a plurality of flat-bottomed holes 15 formed radially in the test piece with, as centre, ultrasonic wave incident point O of the matrix array probe 3 arranged on the flaw detection surface 11. Respective flat bottom surfaces 15b of the plurality of flat-bottomed holes 15 are arranged facing each other to reflect supersonic wave incident from the matrix array probe 3 through the ultrasonic wave incident point O toward the ultrasonic wave incident point O.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2019,JPO&INPIT
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