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A parametric method for correcting polluted plasma current signal and its application on Keda Torus eXperiment.
Deng, Tijian; Lan, Tao; Wu, Jie; Tan, Mingsheng; Xu, Hangqi; Zhu, Junfeng; Chen, Chen; Adil, Yolbarsop; Zhang, Sen; Wu, Jiaren; Zu, Yiming; Mao, Wenzhe; Li, Hong; Xie, Jinlin; Liu, Ahdi; Liu, Zixi; Wu, Zhengwei; Wang, Hai; Wen, Xiaohui; Zhou, Haiyang; Wei, Zian; Xiao, Chijin; Ding, Weixing; Zhuang, Ge; Liu, Wandong.
Afiliação
  • Deng T; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Lan T; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Wu J; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Tan M; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Xu H; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Zhu J; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Chen C; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Adil Y; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Zhang S; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Wu J; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Zu Y; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Mao W; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Li H; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Xie J; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Liu A; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Liu Z; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Wu Z; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Wang H; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Wen X; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Zhou H; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Wei Z; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Xiao C; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Ding W; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Zhuang G; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
  • Liu W; KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China.
Rev Sci Instrum ; 90(12): 123513, 2019 Dec 01.
Article em En | MEDLINE | ID: mdl-31893776
ABSTRACT
We have developed a parametric method for eliminating the background component of the plasma current, which is measured by a Rogowski coil and polluted by the toroidal magnetic field in the vacuum vessel of the Keda Torus eXperiment (KTX) reversed field pinch (RFP) device. The method considers the toroidal magnetic field windings, the KTX vacuum chamber, and the Rogowski coil as a linear time-invariant system; in this case, a constant frequency response function characterizes the system. Using this response function, the current component caused by pollution from the toroidal magnetic field can be predicted exactly for an arbitrary input current to the toroidal magnetic field windings. Compared with the traditional proportional compensation method, the proposed method has great flexibility and universality and it is potentially applicable to cases in which the toroidal field current signal changes over time with plasma feedback signals. Furthermore, the method can be applied to other similarly affected signals, such as magnetic field signals. As an example, we have corrected the poloidal and toroidal magnetic field signals better to reveal the true physical processes for the RFP state.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article