Proposed tool for inspection of external welds on tube gives view of full circumferential strip of outer surface. Similar to borescopes used to inspect interiors of tubes. Instead of fitting inside tube, new tool encircles it. Inspection more reliable and less time consuming.
Inspecting The Full Circumferences Of Tubes
NASA Tech Briefs ; 14 , 5
1990-05-01
Miscellaneous
No indication
English