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Using Ruby Balls As Fiducial MarksCombination of basic and advanced techniques yields new capability for inspection. In new technique, surface first inspected with fluorescent penetrant dye to reveal flaws. Ruby ball of known diameter placed near flaw having to be measured. Flaw and ball observed through magnifying video system that can "freeze" image.
Document ID
19900000022
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Painter, Nance M. (Rockwell International Corp.)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 1
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MFS-29394
Accession Number
90B10022
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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