Electric Welding of spacecraft tubing in the presence of delicate electronics is a necessity on one spacecraft. Because of fears that electromagnetic coupling of weld energy could damage CMOS devices and other sensitive circuits, a test program has been conducted to assess the hazards. An orbital arc welder and an RF brazing machine were measured to determine their likelihood of damaging sensitive electronic equipment. Test parameters were varied to assess the effectiveness of typical EMC practices such as grounding, bonding and shielding. A method of calibrating hazard levels at the victim circuit's location is described along with the results and conclusions of the test program.
Electric welding hazard to spacecraft electronics
Gefaehrdung der Elektronik von Raumflugkoerpern beim elektrischen Schweissen
23rd annual IEEE EMC sympos. ; 224-228
1981
5 Seiten, 9 Bilder, 2 Tabellen
Aufsatz (Konferenz)
Englisch
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