| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection device for performing ultrasonic flaw detection by continuous running operation and for recording accurate data even if an SH wave is used. SOLUTION: The film thickness stability retention time of a contact medium 7 is stored in advance by a main control part 50 of the ultrasonic flaw detection device, stop time before performing the ultrasonic flaw detection of an ultrasonic probe 10 being stopped at a data collection position is obtained, the stop time is compared with the film thickness stability retention time, it is judged whether the stop time is longer than the film thickness stability retention time or not, and the start for measuring ultrasonic data and position data is instructed the excess of the stop time over the film thickness stability retention time as a condition. |
