| 摘要 |
<p>PURPOSE: A non-destructive testing device is provided to safely and easily perform various defects checking works of a structure constructed in a dangerous environment such as underwater environment or a region exposed to radiation. CONSTITUTION: A non-destructive testing device includes a frame(10), a vacuum box(20), a fixing device(30), and a vacuum pump. The frame is arranged on a structure which is detected for defects. The frame has an up and down rail. The vacuum box is lifted according to the rail of the frame. The vacuum box is in a vacuum state. The vacuum pump forms the vacuum box in a vacuum. A control unit is formed on the vacuum box to control each element.</p> |
