| HL-2A装置快速扫描气动探针的研制和运用 |
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| 引用本文： | 洪文玉,严龙文,丛恕敏,钱俊.HL-2A装置快速扫描气动探针的研制和运用[J].核聚变与等离子体物理,2005,25(4):241-245. |
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| 作者姓名： | 洪文玉 严龙文 丛恕敏 钱俊 |
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| 作者单位： | 核工业西南物理研究皖,成都,610041;中国科学院沈阳科学仪器研制中心,沈阳,110004 |
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| 摘 要： | 快速扫描气动探针已在HL- 2A 装置上用于对边缘等离子体参数的径向分布的测量, 特别是刮离层等离子体参数的特征长度和扰动的测量。该系统采用精密的气动气缸驱动带有探针组件的长驱动杆, 其最快速度可在60 ms 时间内水平扫描8 cm 的距离。探针信号测量具有1MHz 的快速时间响应和0. 04 mm 的空间分辨率。可靠地测量了HL- 2A 装置边缘电子温度和密度的时空分布。
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| 关 键 词： | 快速扫描气动系统 数据光栅位移系统 气动汽缸 |
| 文章编号： | 0254-6086（2005）04-0241-05 |
| 收稿时间： | 2005-01-05 |
| 修稿时间： | 2005-01-052005-04-22 |
Manufacture and application of fast-scanning probe system in the HL-2A tokamak |
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| HONG Wen-yu,YAN Long-wen,CONG Shu-min,QIAN Jun.Manufacture and application of fast-scanning probe system in the HL-2A tokamak[J].Nuclear Fusion and Plasma Physics,2005,25(4):241-245. |
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| Authors: | HONG Wen-yu YAN Long-wen CONG Shu-min QIAN Jun |
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| Institution: | ( 1. Southwestern Institute of Physics, Chengdu 610041; 2. Shenyang Institute of Scientific Instrument, Chinese Academy of Sciences, Shenyang 110004) |
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| Abstract: | A fast-scanning probe system has been installed in the HL-2A tokamak and is used to measure the edge and scrape-off layer(SOL) plasma parameter profiles,especially the characteristic length and fluctuations of local plasma parameters.The system has a compact pneumatic cylinder and the pneumatic cylinder can drive a long drive shaft with the probe array.The system can scan a horizontal distance of 8 cm in 60 ms.The SOL and edge plasma parameter profiles with spatial resolution 0.04 mm have been obtained with a digital grating displacement measurement system. |
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| Keywords: | A fast-scanning system Digital grating displacement system Pneumatic cylinder |
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