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Welding-Current IndicatorLight flashes on to indicate high current. Simple, inexpensive display circuit indicates when 3,000-A welding current flows in welding gun. Onset of welding current induces voltage and current in 1,000-turn, 28-gauge copper-wire coil. Single-transistor amplifier amplifies induced current, energizing light-emitting diode (LED) connected to collector of transistor. Light from LED gives simple, direct indication of welding current.
Document ID
19900000005
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Hensley, Milton C.
(Rockwell International Corp.)
Huston, Steven W.
(Rockwell International Corp.)
Kroy, Ralph E.
(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
Electronic Components And Circuits
Report/Patent Number
MFS-29574
Accession Number
90B10005
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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