Electric lamp and discharge devices: systems – Discharge device load – Electromagnetic influenced discharge device
Patent
1988-06-13
1990-06-05
Mis, David
Electric lamp and discharge devices: systems
Discharge device load
Electromagnetic influenced discharge device
313153, 373107, H05B 4100, H01J 150
Patent
active
049317024
ABSTRACT:
An electric-arc device has two aligned electrodes separated by an arc gap. The position of an electric arc in the arc gap is stabilized by using at least two coils, each made as a rectangular loop and bent around a cylindric surface. The coils are mounted around the electrodes such that their arcuate sides form two respective circumferences whose centers lie on a line parallel to the axis of the electrodes. The length of the straight side of each coil is no less than the length of the arc gap. The coils are connected to a power supply such that currents flowing along the adjacent straight sides of the neighboring coils are oppositely directed. These opposing currents induce a magnetic field into the arc gap which controls the location of the electric arc. The location of each coil with respect to a plane passing through the middle of the arc gap normal to the axis of the electrodes is limited by two extreme positions, in the first of which the coil is symmetric about said plane, and in the second the coil is displaced towards the negative electrode and one of the arcuate sides thereof lies in this plane. In another embodiment of the device the means for stabilizing the position of an electric arc in the arc gap is formed by two cylindrical coils embracing the electrodes.
REFERENCES:
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Pasternak, A. W. et al., "Probe and Spectroscopic Measurements In A High-Density DC Argon Arc Plasma"; Journal of Applied Physics, vol. 46, No. 3, Mar. 1975, pp. 1135-1140.
Kuznetsov Vladimir M.
Peregud Boris P.
Rusakov Alexandr I.
Voronin Alexandr V.
Fiziko-Tekhnichesky Institut Imeni A.F. Ioffe an SSSR
Mis David
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