Inspection technique for narrow-bore metal tubing involves use of small internal eddy-current probe. Probe consists of thin copper wire wrapped on bobbin. Probe small enough to pass through bends in tube being measured. Technique useful for strain measurements where operating conditions or inaccessibility prevent use of such conventional methods as X-ray diffraction, electrical-resistance measurements, strain gages, or holography.
Eddy-Current Inspection of Narrow Metal Tubes
NASA Tech Briefs ; 8 , 1
1984-04-01
Miscellaneous
No indication
English
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