Probe Measurements and Potential Distribution in Copper A-C Arcs |
Common terms and phrases
20 volts 27 amp rms a-c arc A. D. Forbes A.I.E.E. TRANS amp per sq amperes anode approximately arc electrodes arc in air arc region arc-core atmospheric pressure Bramhall cathode ray oscillograph central arc space charging current circuit conditions circuit constants contactor Copper Arc deflecting plates difference of potential Discharges in Gases distribution of potential ditions Elec Electric Discharges electrode voltage passes Franklin Institute glow discharge hole horizontally ionized gas Langmuir layer of gas MEASUREMENTS AND POTENTIAL microseconds after current negative dip negative voltage dip Negligible Gradient number Oscillograph Record overall voltage Plasma Potential positive space-charge positive-ion cur positive-ion current positive-ion sheath poten potential difference potential distribution potential gradient PROBE MEASUREMENTS probe methods probe placed probe potential probe surface rate of change reignition period reignition voltage shown in Fig Slepian sq cm throughout the arc TIAL DISTRIBU University of Michigan vertically the voltage voltage of central voltage rise