Application of dynamic calibration and control waveform optimization techniques in the fast sweeping reflectometer upgrade on the HL-2A tokamak
Application of dynamic calibration and control waveform optimization techniques in the fast sweeping reflectometer upgrade on the HL-2A tokamak
复制标题
动态标定和控制波形优化技术在HL-2A托卡马克快速扫描反射计升级中的应用
DOI：
10.1088/1748-0221/16/05/p05020
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发表时间：
2021
影响因子：
1.3
通讯作者：
Fang K. R.
中科院分区：
文献类型：
--
作者：
Yang Z. C.;Jiang M.;Shi Z. B.;Zhong W. L.;Shi P. W.;Liu Y.;Wen J.;Fang K. R.
通过调频连续波（FMCW）反射计测量得到的高时空密度分布，对于研究粒子输运与约束，尤其是瞬态事件而言至关重要。然而，传统的校准方法……
（注：原文“the conventional calibration m”似乎不完整，推测后面应该还有“method”之类的词 。）
High temporal-spatial density profiles, measured by the frequency modulated continuous wave (FMCW) reflectometer, are crucial for the study of particle transport and confinement, especially for the transient events. However, the conventional calibration methods and control waveform of the voltage controlled oscillator (VCO) source constraint the increase of the sweeping frequency (time resolution) and the accuracy of the probed location of the FMCW. In this work, two methods of dynamic calibration of the VCO are proposed to reduce the measurement error due to the high sweep rate, and the results are found to be consistent with each other. In addition, the control waveform of VCOs are re-designed considering the VCO calibration results and dispersions of the waveguide and cables. Therefore, the sweep/dead time has been shortened to be 10 μs/50 ns from 25 μs/5 μs and the accuracy of the detection location has been improved significantly. The density profiles and density fluctuations during the tearing modes are presented which demonstrate the capability of the upgraded reflectometer.
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DOI：
10.1063/1.5038829
发表时间：
2018-10
期刊：
The Review of scientific instruments
影响因子：
--
作者：
S. Seo
通讯作者：
S. Seo
DOI：
10.1063/1.4866640
发表时间：
2014-02
期刊：
The Review of scientific instruments
影响因子：
--
作者：
Z. Shi;M. Jiang;X. L. Huang;W. Zhong;W. Chen;Y. Che;Z. T. Liu;X. Ding;Q. Yang;X. Duan
通讯作者：
Z. Shi;M. Jiang;X. L. Huang;W. Zhong;W. Chen;Y. Che;Z. T. Liu;X. Ding;Q. Yang;X. Duan
影响因子：
--
作者：
Y. Gui;W. Dou
通讯作者：
Y. Gui;W. Dou
影响因子：
1.6
作者：
A. Silva;M. Manso;L. Cupido;M. Albrecht;F. Serra;P. Varela;J. Santos;S. Vergamota;F. Eusebio;J. Fernandes;T. Großmann;A. Kallenbach;B. Kurzan;C. Loureiro;L. Meneses;I. Nunes;F. Silva;W. Suttrop
通讯作者：
A. Silva;M. Manso;L. Cupido;M. Albrecht;F. Serra;P. Varela;J. Santos;S. Vergamota;F. Eusebio;J. Fernandes;T. Großmann;A. Kallenbach;B. Kurzan;C. Loureiro;L. Meneses;I. Nunes;F. Silva;W. Suttrop
影响因子：
1.6
作者：
L. Zeng;E. Doyle;T. Luce;W. Peebles
通讯作者：
L. Zeng;E. Doyle;T. Luce;W. Peebles