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Monitoring Coating Thickness During Plasma SprayingHigh-resolution video measures thickness accurately without interfering with process. Camera views cylindrical part through filter during plasma spraying. Lamp blacklights part, creating high-contrast silhouette on video monitor. Width analyzer counts number of lines in image of part after each pass of spray gun. Layer-by-layer measurements ensure adequate coat built up without danger of exceeding required thickness.
Document ID
19900000488
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Miller, Robert A.
(NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 14, 2013
Publication Date
September 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 9
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
LEW-14919
Accession Number
90B10488
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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