. Rectification of alternating currents by means of a carbon arc. Fig. 10. Voltage wave obtained with auxiliary carbon terminal showingalmost complete rectification. current and voltage in the rectifying circuit. This figureshows that the waves hold nearly the s^me shape and are inphase. The reason for this large or total rectification is Page 16 Fig. 11. Current wave obtained by auxiliary carbon terminal showingalmost complete Fig. 12. Current and voltage wave obtained with auxiliary carbonterminal showing relation in phase and shape. Page 17 evident. The third carbon teing pa
. Rectification of alternating currents by means of a carbon arc. Fig. 10. Voltage wave obtained with auxiliary carbon terminal showingalmost complete rectification. current and voltage in the rectifying circuit. This figureshows that the waves hold nearly the s^me shape and are inphase. The reason for this large or total rectification is Page 16 Fig. 11. Current wave obtained by auxiliary carbon terminal showingalmost complete Fig. 12. Current and voltage wave obtained with auxiliary carbonterminal showing relation in phase and shape. Page 17 evident. The third carbon teing partially out of the arcstream remains cool, and hence there is great oppositionto the starting of the A C arc, which wholly or partiallyeliminates the alternating current apparent in a smallloop of the curves previously mentioned, giving totalrectification. It is to be noted here that all these wavesare semi-transient phenomena, the wave shape varyingconsiderably in a few cycles. The oscillograms s :own inFigs. 6 and 7 were easily taken for the condition pre-vailing then was a fairly permanent one. In obtaining theoscillograms shown in Figs. 8-12,other methods were necessaryas this condition, as denoted by the snapping sound , wasonly momentary. Everything being in readiness the thirdterminal was placed near the edge of the arc stream. Theoscillogram was taken when the snapping noise was heard,brought about by the shifting of the arc, o
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1912
