Computation of electromagnetic phenomena appearing in a plasma torch

Author

Conraux, Ph ; Meunier, G. ; Kassabji, F. ; Moneuse, M.

Author_Institution

Lab. d´´Electrotech. de Grenoble, ENSIEG, St. Martin d´´Heres, France

Volume

24

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

526

Lastpage

529

Abstract

The modeling of the electromagnetic phenomena that are predominant in the cathodic area of a plasma torch is described. The process comprises axisymmetric modelling of the coil, 3D Cartesian modelling of the electrodes, and modelling of the arc field using the Biot-Savart Law. The model has been used to compare the effects of different sources of electromagnetic fields on the operation of the torch. The use of the model has revealed a magnetic barrier effect created by the coil on the arc at the bottom of the cathode and has resulted in an adjustment of the measurement method used to study the torch

Keywords

cathodes; electromagnetic field theory; plasma devices; plasma theory; 3D Cartesian modelling; Biot-Savart Law; EM fields; arc field; axisymmetric modelling; cathode; coil; electrodes; electromagnetic fields; electromagnetic phenomena; magnetic barrier effect; plasma devices; plasma torch; Cathodes; Coils; Electrodes; Finite element methods; Magnetic fields; Plasma applications; Plasma devices; Plasma measurements; Plasma sources; Plasma stability;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.43973

Filename

43973