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Obtaining Patterns Of Holes In Directional CouplersTechnique enables reproduction of pattern of holes in hidden common wall of microwave directional coupler. Talcum-dusting procedure yields pattern of powder on adhesive tape showing sizes of distances between holes. Later, coupler cleaned with water or compressed air. Applicable to other equipment containing inaccessible holes in common wall between adjacent tubes.
Document ID
19920000487
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Perez, Raul M. (Caltech)
Date Acquired
August 15, 2013
Publication Date
August 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 8
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
NPO-18454
Accession Number
92B10487
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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