| 微弱光电流信号放大器的设计 |
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| 引用本文： | 杨茂,胡立群,段艳敏,毛松涛.微弱光电流信号放大器的设计[J].核电子学与探测技术,2011(7):734-738. |
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| 作者姓名： | 杨茂 胡立群 段艳敏 毛松涛 |
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| 作者单位： | 中国科学院等离子体物理研究所; |
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| 基金项目： | 国家自然科学重点基金项目(10935004) |
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| 摘 要： | 针对等离子体物理实验装置托卡马克(EAST)实验中微弱信号的探测需要,结合EAST的恶劣电磁环境以及光电检测电路的基本工作原理,设计了一种实用的光电弱信号电流放大器.电路由前置电流放大器、有源滤波放大电路构成,结合电磁兼容技术对信号进行接地和屏蔽,以及合理布线,旨在保证增益和带宽的同时降低噪声.实验表明,基于本设计的光...
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| 关 键 词： | 光电探测器 前置电流放大 有源滤波 低噪声 电磁兼容 |
The Design of the Amplifier for Weak Photoelectric Current Signal |
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| YANG Mao,HU Li-qun,DUAN Yan-min,MAO Song-tao.The Design of the Amplifier for Weak Photoelectric Current Signal[J].Nuclear Electronics & Detection Technology,2011(7):734-738. |
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| Authors: | YANG Mao HU Li-qun DUAN Yan-min MAO Song-tao |
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| Affiliation: | YANG Mao,HU Li-qun,DUAN Yan-min,MAO Song-tao (Institute of Plasma Physics,Chinese Academy of Sciences,HeFei 230031) |
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| Abstract: | It designs a kind of current amplifier of practical photoelectric weak signal for the detection of weak diagnosis signal of the Plasma physics experimental in EAST,with the high noise environment in EAST experimental and the basic principles of photoelectric detection circuit.The circuit is made up of pre-amplifier,active filter and behind voltage amplifier,combined with EMC technology to get a low-noise signal which has enough gain and bandwidth.Experimental show that the circuit could effectively measure ... |
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| Keywords: | photoelectric detector pre-current amplifier active filter low noise EMC |
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