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Controlling the Focus in Electron-Beam WeldersDetector using two whirling wires measures focus of beam in electronbeam welder. Multiple-wire beam-sampling method provides for simple nullmeter focus indication easily controlled by operator. Detector not only operates at high beam currents but eliminates need for oscilloscope.
Document ID
19830000664
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Macfarlane, D. I.
(Rockwell International Corp.)
Spiegel, K. W.
(Rockwell International Corp.)
Date Acquired
August 11, 2013
Publication Date
November 1, 1984
Publication Information
Publication: NASA Tech Briefs
Volume: 8
Issue: 2
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MFS-19814
Accession Number
83B10664
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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