| 摘要 |
PROBLEM TO BE SOLVED: To detect the flaw in a specimen by an ultrasonic wave. SOLUTION: In this ultrasonic flaw detection system equipped with a plurality of ultrasonic elements and a signal processor 110, the signal processor 110 has: a delay time calculation part 113 for calculating the relative delay time, wherein the ultrasonic wave reflected at the flaw detection position arrives at the respective ultrasonic elements, on the basis of the difference between the relative distances from the flaw detection position determined in the specimen to the respective ultrasonic elements; an output value sampling part 115 for sampling the output values of the respective ultrasonic elements with the elapse of time, an output value synthesizing part 117 for correcting the output values of the respective ultrasonic elements sampled in the output value sampling part 115 by the relative delay time corresponding to the respective ultrasonic elements calculated in the delay time calculation part 113 to synthesize them and a flaw detection result output part 118 for outputting the respective results, wherein the delay time is calculated based on the respective flaw detection positions in the delay time calculation part in a case that a plurality of the flaw detection positions are determined and the output values of the respective ultrasonic elements are synthesized on the basis of the delay time in the output value synthesizing part, as the flaw detection results at the respective flaw detection positions. COPYRIGHT: (C)2011,JPO&INPIT |
