微弱光电流信号检测系统的电磁兼容设计
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- 英文论文题名：Electro-magnetic Compatibility Design of Detection System of Weak Photo-current Signal
- 论文作者：赵金龙 ; 盛秀丽 ; 曹宏睿 ; 胡立群
- 英文论文作者：ZHAO Jinlong ; SHENG Xiuli ; CAO Hongrui ; HU Liqun ; Institute of Plasma Physics Chinese Academy of Sciences
- 年：2015
- 作者机构：中国科学院等离子体物理研究所;
- 论文关键词：微弱信号 ; 电磁防护 ; 差分 ; 滤波 ; PCB布线 ; 屏蔽 ; 接地 ; 小型化
- 英文论文关键词：weak signal ; electro-magnetic protection ; differential circuit ; shielding ; grounding ; filtering ; PCB routing ; miniaturization
- 会议召开时间：2015-08-12
- 会议录名称：静电放电：从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议论文集
- 语种：中文
- 分类号：TL631.24
- 学会代码：WLJD
- 会议名称：静电放电 ; 从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议
- 会议地点：中国河北石家庄
- 主办单位：中国物理学会静电专业委员会
- 学会名称：中国物理学会静电专业委员会
- 页数：7
- 文件大小：999k
- 原文格式：D
- 会议级别：全国
摘要
针对磁约束聚变装置托克马克(EAST)实验中软X射线诊断系统对微弱信号的探测需求,考虑EAST的恶劣电磁环境,在设计信号检测系统的同时需采取合理的电磁防护措施,以降低系统噪声。文中电路采用差分结构实现I-V转换,重点研究电磁兼容。从电磁干扰的三要素出发,结合实验测试,讨论了滤波、PCB布线、屏蔽、接地在系统中的应用,完成了系统小型化、高参数的要求,32通道设计(原有电路为9通道);增益1*10^7(V/A);-3d B带宽100KHz;噪声10mV。结果表明,此方案能有效的检测微弱电流信号,性能稳定。电磁防护设计合理,效果明显。
According to the detection requirement of weak signal of Soft X-ray diagnostic system in magnetic confinement fusion device(EAST Tokamak)and taking into account its harsh electro-magnetic field environment,it is a must to take some appropriate electromagnetic protection measures in the design process of signal processing circuit(system)in order to decrease circuit noise.In the thesis,a differential circuit structure has been designed to achieve current-to-voltage conversion,and studying the electro-magnetic compatibility is the point.Associated with experimental test and complying with three factors of electro-magnetic interference,the paper has discussed the application of shielding,grounding,filtering,and PCB routing method in circuit system,and completed the circuit requirements of system miniaturization,high parameters with quantity of 32 channels per PCB board(previous circuit is 9 channels),gain of 1*10^7(V/A),-3d B width of100KHz,and noise of 10m V.The test results show that the circuit scheme can detect effectively weak current signal and has stable performance.The effect of electromagnetic protective measures adopted is reasonable and obvious.
According to the detection requirement of weak signal of Soft X-ray diagnostic system in magnetic confinement fusion device(EAST Tokamak)and taking into account its harsh electro-magnetic field environment,it is a must to take some appropriate electromagnetic protection measures in the design process of signal processing circuit(system)in order to decrease circuit noise.In the thesis,a differential circuit structure has been designed to achieve current-to-voltage conversion,and studying the electro-magnetic compatibility is the point.Associated with experimental test and complying with three factors of electro-magnetic interference,the paper has discussed the application of shielding,grounding,filtering,and PCB routing method in circuit system,and completed the circuit requirements of system miniaturization,high parameters with quantity of 32 channels per PCB board(previous circuit is 9 channels),gain of 1*10^7(V/A),-3d B width of100KHz,and noise of 10m V.The test results show that the circuit scheme can detect effectively weak current signal and has stable performance.The effect of electromagnetic protective measures adopted is reasonable and obvious.
引文
[1]朱士尧.核聚变原理[M].合肥:中国科学技术大学出版社.1992:30-33
[2]石秉仁.磁约束聚变原理与实践[M].北京:原子能出版社.1999:2-6.
[3]李建刚.我国超导托卡马克的现状及发展[J].科学发展.2007.2(5):404-410.
[4]吴一纯.EAST总控制系统与安全连锁系统的研究与实现[D].中国科学院合肥物质科学研究院.2009
[5]陈晔斌.ITER软X射线相机的研究[D].合肥:中国科学技术大学.2014
[6]陈开云.软X射线图像反演和锯齿不稳定性的研究[D].合肥:中国科学院合肥物质科学研究院.2010.
[7]王勇.磁约束核聚变中微弱信号处理及电磁兼容研究[D].合肥:中国科学院合肥物质科学研究院.2009.
[8]Jerald G G.Photodiode amplifiers op amp solutions[M].New York,USA:Gain Technology Corporation,Mc Graw-Hill Companies.1995:22-30.
[9]王连坡.电子设备电磁兼容性设计[J].武汉:舰船电子工程.2011:160-163.
[10]刘宝忠.电磁兼容性研究与应用[D].山东:山东大学.2007
[11]杨志民.现代电路理论与设计[M].北京:清华大学出版社.2009:14-15.
[12]刘小宁PCB的电磁兼容设计[J].贵阳:机械与电子.2009
[13]杨茂,胡立群.光电微弱信号检测电路的研究[C]∥第十六届全国核电子学与核探测技术学术年会论文集(上册).绵阳,四川:中国电子学会.2012:117-120.
[14]赛尔吉欧.佛朗哥.基于运算放大器和模拟集成电路的电路设计[M].西安:西安交通大学出版社.2004:198-199
[15]王林森.EAST极向场电源控制系统的EMC接地设计[J].西安:电力电子技术.2011:101-103
[16]高晋占.微弱信号检测(第2版)[M].北京:清华大学出版社.2011
[2]石秉仁.磁约束聚变原理与实践[M].北京:原子能出版社.1999:2-6.
[3]李建刚.我国超导托卡马克的现状及发展[J].科学发展.2007.2(5):404-410.
[4]吴一纯.EAST总控制系统与安全连锁系统的研究与实现[D].中国科学院合肥物质科学研究院.2009
[5]陈晔斌.ITER软X射线相机的研究[D].合肥:中国科学技术大学.2014
[6]陈开云.软X射线图像反演和锯齿不稳定性的研究[D].合肥:中国科学院合肥物质科学研究院.2010.
[7]王勇.磁约束核聚变中微弱信号处理及电磁兼容研究[D].合肥:中国科学院合肥物质科学研究院.2009.
[8]Jerald G G.Photodiode amplifiers op amp solutions[M].New York,USA:Gain Technology Corporation,Mc Graw-Hill Companies.1995:22-30.
[9]王连坡.电子设备电磁兼容性设计[J].武汉:舰船电子工程.2011:160-163.
[10]刘宝忠.电磁兼容性研究与应用[D].山东:山东大学.2007
[11]杨志民.现代电路理论与设计[M].北京:清华大学出版社.2009:14-15.
[12]刘小宁PCB的电磁兼容设计[J].贵阳:机械与电子.2009
[13]杨茂,胡立群.光电微弱信号检测电路的研究[C]∥第十六届全国核电子学与核探测技术学术年会论文集(上册).绵阳,四川:中国电子学会.2012:117-120.
[14]赛尔吉欧.佛朗哥.基于运算放大器和模拟集成电路的电路设计[M].西安:西安交通大学出版社.2004:198-199
[15]王林森.EAST极向场电源控制系统的EMC接地设计[J].西安:电力电子技术.2011:101-103
[16]高晋占.微弱信号检测(第2版)[M].北京:清华大学出版社.2011