Design and test of voltage and current probes for EAST ICRF antenna impedance measurement
Design and test of voltage and current probes for EAST ICRF antenna impedance measurement
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EAST ICRF 天线阻抗测量电压和电流探头的设计和测试
DOI：
10.1088/2058-6272/aaa7ea
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发表时间：
2018-01
影响因子：
1.7
通讯作者：
Yuan Shuai
中科院分区：
文献类型：
--
作者：
Wang Jianhua;Chen Gen;Zhao Yanping;Mao Yuzhou;Yuan Shuai
在先进超导托卡马克（EAST）实验装置上，在离子回旋加速器射频传输线上安装了一对电压电流探针（V/I探针），用于测量天线输入阻抗，补充了传统的基于电压探针阵列的测量技术。V/I探头的耦合系数对探头的尺寸和安装位置很敏感，应合理确定耦合系数，使之与数据采集卡的测量范围相匹配。V/I探头在测试平台上进行了低功率测试，并带有各种模拟负载。测试结果表明，当负载RL > 2.5 Ω时，耦合电阻的偏差较小，而当负载RL < 1.5 Ω时，耦合电阻的偏差较大，说明在高驻波比时，功率损耗不可忽略。在引起耦合电阻计算偏差的因素中，相位测量误差比幅度测量误差更能引起计算偏差。为了排除可能导致相位测量误差的因素，可以在稳态L模式下对相位检测器进行校准，然后使用校准后的数据在EAST实验中的H模式下进行计算。
On the experimental advanced superconducting tokamak (EAST), a pair of voltage and current probes (V/I probes) is installed on the ion cyclotron radio frequency transmission lines to measure the antenna input impedance, and supplement the conventional measurement technique based on voltage probe arrays. The coupling coefficients of V/I probes are sensitive to their sizes and installing locations, thus they should be determined properly to match the measurement range of data acquisition card. The V/I probes are tested in a testing platform at low power with various artificial loads. The testing results show that the deviation of coupling resistance is small for loads RL > 2.5 Ω, while the resistance deviations appear large for loads RL < 1.5 Ω, which implies that the power loss cannot be neglected at high VSWR. As the factors that give rise to the deviation of coupling resistance calculation, the phase measurement error is the more significant factor leads to deleterious results rather than the amplitude measurement error. To exclude the possible ingredients that may lead to phase measurement error, the phase detector can be calibrated in steady L-mode scenario and then use the calibrated data for calculation under H-mode cases in EAST experiments.
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DOI：
10.1063/1.4936484
发表时间：
2015-12
期刊：
--
影响因子：
--
作者：
C. Qin;Y. Zhao;X. Zhang;B. Wan;X. Gong;Y. Mao;S. Yuan;G. Chen
通讯作者：
C. Qin;Y. Zhao;X. Zhang;B. Wan;X. Gong;Y. Mao;S. Yuan;G. Chen
DOI：
10.1016/j.fusengdes.2013.02.011
发表时间：
2013-10
期刊：
--
影响因子：
--
作者：
I. Stepanov;J. Noterdaeme;H. Faugel;H. Fünfgelder;F. Braun;V. Bobkov;D. Milanesio
通讯作者：
I. Stepanov;J. Noterdaeme;H. Faugel;H. Fünfgelder;F. Braun;V. Bobkov;D. Milanesio
用于长脉冲操作的 EAST 离子回旋共振加热系统
影响因子：
1.7
作者：
Zhao Y. P.;Zhang X. J.;Mao Y. Z.;Yuan S.;Xue D. Y.;Deng X.;Wang L.;Ju S. Q.;Cheng Y.;Qin C. M.;Chen G.;Lin Y.;Li J. G.;Wan B. N.;Song Y. T.;Braun F.;Kumazawa R.;Wukitch S.
通讯作者：
Wukitch S.
影响因子：
3.3
作者：
I. Stepanov;J. Noterdaeme;V. Bobkov;H. Faugel;D. Coster;D. Milanesio;R. Maggiora;G. Siegl;R. Bilato;M. Brambilla;G. Verdoolaege;F. Braun;H. Fünfgelder;R. D’Inca;W. Suttrop;A. Kallenbach;J. Schweinzer;E. Wolfrum;R. Fischer;A. Mlynek;V. Nikolaeva;L. Guimarais
通讯作者：
I. Stepanov;J. Noterdaeme;V. Bobkov;H. Faugel;D. Coster;D. Milanesio;R. Maggiora;G. Siegl;R. Bilato;M. Brambilla;G. Verdoolaege;F. Braun;H. Fünfgelder;R. D’Inca;W. Suttrop;A. Kallenbach;J. Schweinzer;E. Wolfrum;R. Fischer;A. Mlynek;V. Nikolaeva;L. Guimarais
影响因子：
1.7
作者：
Yang Qingxi;Song Yuntao;Wu Songtao;Z. Yanping
通讯作者：
Yang Qingxi;Song Yuntao;Wu Songtao;Z. Yanping