| 摘要 |
<p>A visual inspection tool (24), attached to a manipulator (20), is disclosed for inspecting a tube end (26) of a tube sheet of a steam generator (12). A fuse light (40) is mounted inside the housing adjacent to a light guide (46). An outer mirror (58) surrounds the light guide and has a cutaway portion (60) adjacent to the fuse light to allow light into the light guide. An inner mirror (64) is located at the top of the light guide and is supported on the housing axis. The outer and inner mirrors are designed such that light directed by the light guide to the top of the housing simultaneously reflects from the outer and inner mirrors onto the outer (120) and inner (118) portions of the tube end, respectively. A camera (78) receives the light reflected by the tube end and generates tube image data. At a remote location, a technician can see a panoramic view of the tube without repositioning the manipulator (20).</p> |
