| 摘要 |
PURPOSE:To make it possible to watch, judge, and photograph the entitled test above the water, by installing a fiberscope, a magnetic powder injection tube, a clean water feed tube, etc. in a clear view box incorporated on the inside of the magnet of an underwater magnetic powder crack check device. CONSTITUTION:The clear view box 7 is incorporated on the inside of the magnet 2 of the underwater magnetic powder crack check device 1, and in this box 7 a fiberscope 3 provided with a watching and photographing objective lens, an illumination lens, an objective lens for a diver, etc. on the front end of the box 7, a magnetic powder injection tube 8, a clean water feed tube 9, etc. Watching, judging, and direct photographing of the states of the test can be executed above the water by using these scope 3, tubes 8, 9, etc., thus permitting appropriate instruction to the diver, and execution of satisfactory test, and recording. |
