NASA NTRS · 19680000149
System remotely inspects, measures, and records internal irregularities in piping
Abstract
Video electromechanical probe visually inspects and measures internal offset and peaking of welds in relatively large piping. Irregularity dimensions are recorded on peripheral equipment consisting of video tape and X-Y plotter. The probe is used for inspection of vacuum-jacketed liquid lines that cannot be inspected externally.
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Burry, F. H., Cunningham, J. Y., Heisman, R. M., Iceland, W. F., Norwood, L. B.. 1968-05-01. System remotely inspects, measures, and records internal irregularities in piping. https://ntrs.nasa.gov/citations/19680000149
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