| 大动态范围数控弧光探测器的研制 |
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| 引用本文： | 周显明,卢波.大动态范围数控弧光探测器的研制[J].核聚变与等离子体物理,2019,39(3):270-275. |
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| 作者姓名： | 周显明 卢波 |
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| 作者单位： | 核工业西南物理研究院,成都,610041;核工业西南物理研究院,成都,610041 |
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| 摘 要： | 针对HL-2A/M 高功率微波加热系统微波窗口真空侧对弧光探测的要求，基于三级放大电路和微控制器技术，完成电路设计，研制了新型弧光探测器。增益8 挡数字可调，保护阈值以20mV 的精度0~5V 数字可调，具有远程操作和数字显示功能。在不同增益和保护阈值条件下，实验测得其响应时间最大为2.56μs，能在复杂电磁环境和不同强度干扰光的条件下稳定工作，满足系统要求。
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| 关 键 词： | 高功率微波 HL-2A装置 拉弧打火 弧光探测 |
Development of arc detector with large dynamic range and digital control |
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| ZHOU Xian-ming,LU Bo.Development of arc detector with large dynamic range and digital control[J].Nuclear Fusion and Plasma Physics,2019,39(3):270-275. |
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| Authors: | ZHOU Xian-ming LU Bo |
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| Institution: | (Southwestern Institute of Physics, Chengdu 610041) |
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| Abstract: | A new arc detector with ultra wide dynamic range was developed based on three gain adjustable amplifiers and microcontroller for the RF (radio frequency) windows in the high-power microwave heating systems on HL-2A/M tokamak. The gain is digitally adjustable with 8 levels in the main amplifier and the protection threshold is adjustable from 0 to 5V with accuracy of 20mV. Both the gain and threshold are remotely controlled with the help of a microcontroller. The measured maximum response time is 2.56μs. The arcing detectors work properly in different level of background light and in complicated electromagnetic environment. |
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| Keywords: | High power microwave HL-2A tokamak Arc ignition Arcing detector |
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