| 摘要 |
PURPOSE:To perform ultrasonic flaw detection with high accuracy and smoothly make attaching and detaching of the device at a narrow part by providing an ultrasonic flaw detector at an exact position of welding at a narrow part. CONSTITUTION:Provided are a fixed frame 20 hung down in a narrow part A, a magnetic attraction means 21 to attract the fixed frame 20 to an inspection object structure 5, a position confirmation means 22 to confirm the fixing position of the fixed frame 20, a rotation part 24 supported by the fixed frame 20 and a slide mechanism loaded on the rotation part 24 to horizontally move back and force an ultrasonic probe 26. With the slide mechanism 23 and the rotation part 24, the ultrasonic sensor 26 is moved on the inspection object structure 5 surface to detect the flaw in a welded part 8. |
