A Plasma Diagnosis Method for a Vacuum Arc Under Curved Contact

Based on the continuous spectrum theory, the plasma parameters of a vacuum arc under curved contact are diagnosed in this study. A colorimetric temperature measurement system composed of a color high-speed camera and bimodal filter is built, which is corrected by a tungsten strip lamp. According to...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2022-09, Vol.50 (9), p.2700-2708
Main Authors: Tong, Ziang, Wu, Jianwen, Li, Kui, Li, Yunhua, Wang, Xiaojun, Xia, Shangwen, Lin, Jingyi, Wei, Dejie, Zhang, Jintao
Format: Article
Language:English
Subjects:
Cameras
Charge coupled devices
Color
Colorimetric temperature measurement
Colorimetry
curved contact
curved space transformation
Error reduction
High speed cameras
Parameters
plasma parameters
Plasma temperature
Plasmas
Radiant flux density
Radiation
Temperature measurement
Tungsten
vacuum arc
Vacuum arcs
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Summary:Based on the continuous spectrum theory, the plasma parameters of a vacuum arc under curved contact are diagnosed in this study. A colorimetric temperature measurement system composed of a color high-speed camera and bimodal filter is built, which is corrected by a tungsten strip lamp. According to the shape characteristics of a vacuum arc under curved contact, a calculation method of radiation intensity using curved space transformation is proposed, which reduces the error caused by the curved contact structure. Finally, the plasma parameter distributions for vacuum arcs under curved contact and butt contact are obtained, and the reason and effect on these distributions are investigated.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2022.3193610