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A magnetized torch module for plasma generation
Review of Scientific Instruments, 2002Remodeling components from two commercially available spark plugs and adding a tungsten wire as the central electrode construct a cylindrical-shaped magnetized plasma torch module. A ring-shaped permanent magnet is used to provide an axial magnetic field, which rotates the discharge to prevent the formation of hot spots. The electric properties of this
Lester Orlick +2 more
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2016
The basis of the physical processes in the RF plasma torches and parameters of the RF plasma torches will be considered in this chapter. They are based on the two models—equilibrium and nonequilibrium plasmas, as well as the experimental results.
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The basis of the physical processes in the RF plasma torches and parameters of the RF plasma torches will be considered in this chapter. They are based on the two models—equilibrium and nonequilibrium plasmas, as well as the experimental results.
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2016
This chapter focuses on the theoretical description of the physical processes in the Arc plasma torches with different technological applications. The features of electric Arcs and their models for the study of Arc plasma torches are presented. The need to determine the two-dimensional electromagnetic field, especially in the case of an open free Arc ...
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This chapter focuses on the theoretical description of the physical processes in the Arc plasma torches with different technological applications. The features of electric Arcs and their models for the study of Arc plasma torches are presented. The need to determine the two-dimensional electromagnetic field, especially in the case of an open free Arc ...
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Inductively Coupled Plasma Torches
2013We investigate in this chapter another type of application using eddy currents. An Inductively Coupled Plasma torch (commonly referred to as ICP) is a technical device used to analyze a given sample (gas, solid or liquid prepared as an aerosol) by injecting it in a plasma (generally made of argon) (see Fig. 10.1).
Jacques Rappaz, Rachid Touzani
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Electrode Phenomena in Plasma Torches
Annals of the New York Academy of Sciences, 1999ABSTRACT: The performance of most plasma generators using electric arcs is determined by the design of the electrodes. While the cathode design is the dominant factor in determining the limitations in torch operating current and power level as well as life between maintenance, the anode design dominates the functional performance for most torches, i.e.
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Laser Doppler velocimetry of particles in a plasma torch
Applied Optics, 1986A low-cost method of measuring the velocity of particles injected into a plasma torch is described based on direct detection of the Doppler-shifted frequency of laser light scattered by the particles. Velocities ranging from 5 to 60 m/s have been measured for alumina powders using this technique.
S. K. Brown, L. Mannik
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Microwave plasma torch for analytical spectrometry
Plasma Physics Reports, 2002A microwave argon plasma torch is used to excite the spectra of various materials admixed to the working gas. It is shown that this torch is a very efficient tool for detecting extremely low impurity concentrations in the sample material. An important advantage of the method is the simplicity of testing liquid and dusty samples.
K. F. Sergeichev +2 more
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Experimental and Numerical Analysis of a Reverse-polarity Plasma Torch for Plasma Atomization
Plasma chemistry and plasma processing, 2021Zhengxin Yin +4 more
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Energy balance for a DC plasma torch
The Canadian Journal of Chemical Engineering, 1980AbstractA study was made of the energy utilization efficiency in a d.c. plasma toich operating with argon at atmospheric pressure at a power level of 10‐25 kW. Calorimetric measurements of the energy lost to the cathode, anode and that remaining in the plasma jet showed that the torch efficiency was about 40 to 50%. It increases with an increase of the
Maher I. Boulos, Azhar Bokari
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A microwave-augmented plasma torch module
Plasma Sources Science and Technology, 2006A new plasma torch device which combines arc and microwave discharges to enhance the size and enthalpy of the plasma torch is described. A cylindrical-shaped plasma torch module is integrated into a tapered rectangular cavity to form a microwave adaptor at one end, which couples the microwave power injected into the cavity from the other end to the arc
Skip Williams +3 more
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