Conceptual electro-optical shutter subsystem regulates intensity of light entering video camera from variable-plasma-pulse-arc weld in process. Camera part of video system that enables welding technician to obtain better view of weld bead and puddle in light of arc. Electro-optical shutter opened during low-illumination viewing intervals near zero crossings of welding current, preventing overloading of video camera.
Shutter For VPPA-Welding Vision System
NASA Tech Briefs ; 13 , 11
1989-11-01
Miscellaneous
No indication
English
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