A study of the glow discharge characteristics of contact electrodes at atmospheric pressure in air

Electric field distributions and discharge properties of rod-rod contact electrodes were studied under the condition of DBD for the steady generation of atmospheric pressure glow discharge plasma (APGD) in air. We found that under the effect of the initial electrons generated in a nanometer-scale ga...

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Bibliographic Details
Published in:Physics of plasmas 2014-04, Vol.21 (4)
Main Authors: Liu, Wenzheng, Sun, Guangliang, Li, Chuanhui, Zhang, Rongrong
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AIR
ATMOSPHERIC PRESSURE
Contact pressure
DESIGN
Electric contacts
ELECTRIC FIELDS
ELECTRIC POTENTIAL
ELECTRODES
ELECTRONS
GLOW DISCHARGES
PLASMA
Plasma jets
Plasma physics
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Summary:Electric field distributions and discharge properties of rod-rod contact electrodes were studied under the condition of DBD for the steady generation of atmospheric pressure glow discharge plasma (APGD) in air. We found that under the effect of the initial electrons generated in a nanometer-scale gap, the rod-rod cross-contact electrodes yielded APGD plasma in air. Regarding the rod-rod cross-contact electrodes, increasing the working voltage expanded the strong electric field area of the gas gap so that both discharge area and discharge power increased, and the increase in the number of contact points kept the initial discharge voltage unchanged and caused an increase in the plasma discharge area and discharge power. A mesh-like structure of cross-contact electrodes was designed and used to generate more APGD plasma, suggesting high applicability.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4874301