Ultrasonic inspection data evaluation apparatus and ultrasonic inspection data evaluation method

摘要

PPROBLEM TO BE SOLVED: To provide an ultrasonic inspection data evaluation device capable of detecting the presence of a crack, the position of the end part of the crack or the like more precisely and automatically than before, and an ultrasonic inspection data evaluation method. PSOLUTION: The ultrasonic inspection data evaluation device is equipped with a feature quantity arithmetic unit 2 which extracts the maximum value from the ultrasonic inspection data 1 at each of inspection positions and detects the continuity of the maximum value with the moved inspection position to calculate the locus of the maximum value at the time of scanning of the inspection position, a crack feature quantity database 3 for housing the crack feature quantity showing the feature quantities of the reflected ultrasonic signals at the times of presence/absence of the crack, a crack judging device 4 for comparing the output of the feature quantity arithmetic unit 2 with the data in the crack feature quantity database 3 to perform the judgment of the presence of the crack and the identification of the position of the end part of the crack, a crack measuring instrument 5 for measuring the depth or position of the crack from the identified end part, and a result display/storage device 6 for displaying and storing a measuring result. PCOPYRIGHT: (C)2009,JPO&INPIT