G - Physics – 02 – B
Patent
G - Physics
02
B
350/32
G02B 23/26 (2006.01) F22B 37/00 (2006.01) G02B 6/06 (2006.01) G02B 23/24 (2006.01) G21C 17/00 (2006.01)
Patent
CA 1219061
24 ABSTRACT OF THE DISCLOSURE A fiberscope inspection system for a nuclear steam generating plant includes an optical unit and a transport unit respectively coupled to opposite ends of the fiberoptic cable and mounted at spaced-apart points on a trolley beneath the tube sheet, with the fiberoptic cable hanging freely in a catenary between the two units, both of which are coupled by cable to a remote control station. The optical unit is self-contained and includes a light source, a video camera and a focusing mechanism and chain and sprocket remotely-controlled drive means for controlling the focusing mechanism. The transport unit includes a cartridge comprising a coil of a steel drive tape, the leading end of which is welded to a split-sleeve coupling disposed in clamping engagement with the leading end of the fiberoptic cable, the tape being engageable by a drive sprocket for driving same to feed and retract the fiberoptic cable. Position sensing means are provided for monitoring the position of the fiberscope probe.
464408
Andrews Harry N.
Cooper Frank W. Jr.
Randazzo Matthew J.
Oldham And Company
Westinghouse Electric Corporation
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