各式各样整合系统设备带给人类生活无限方便利益, 却也造成复杂电磁噪声环境。四十年前欧体IEC/CISPR 等委员会之电磁兼容性(ElectroMagneticCompaTIbility, EMC) 研究小组有鉴于此电磁噪声环境趋势,发出 89/336/EECEMC 指令( 及后续修订版92/31/EEC,93/68/EEC) ,说明电子电机设备相关产品必须符合辐射干扰与传导干扰发射规格外, 同时陆续增订辐射耐受性与传导耐受性规格,要求1996 年元旦起强制实施,国内各类电子电机产品厂商为强化所生产产品符合内外销相关EMC指令,促使EMC测试场地快速成长, 较大规模之信息厂都趋向自行筹建EMI (ElectroMagneTIc Interference) 除错场地,加速产品EMC设计达到外销各国相关EMC需求。然而为了验证电子电机设备电磁兼容性设计是否良好, 就必须在研发之整个过程中, 对各种电磁干扰源之发射噪声、传输特性及受干扰设备能否负荷耐受性测试, 验证设备是否符合相关电磁兼容性标准和规范;找出设备设计及生产过程中, 在电磁兼容性方面之盲点。在客户安装和使用设备时, 提供了既真实又有效之数据, 因此,电磁兼容性测试是电磁兼容性设计所不可或缺之重要环节。本文将针对EMC测试最新之军规、商规、车辆规范等作一比较分析测试方法差异及相关经验。
2023-03-31 11:23:29 2.32MB 测试电磁兼容EMC
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针对当前严峻的电磁环境,分析了电磁干扰的来源,通过产品开发流程的分解,融入电磁兼容设计,从原理图设计、PCB设计、元器件选型、系统布线、系统接地等方面逐步分析,总结概括电磁兼容设计要点,最后,介绍了电磁兼容测试的相关内容。
2023-03-31 11:22:13 135KB EMC|EMI
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当前,日益恶化的电磁环境,使我们逐渐关注设备的工作环境,日益关注电磁环境对电子设备的影响,从设计开始,融入电磁兼容设计,使电子设备更可靠的工作。   电磁兼容设计主要包含浪涌(冲击)抗扰度、振铃波浪涌抗扰度、电快速瞬变脉冲群抗扰度、电压暂降、短时中断和电压变化抗扰度、工频电源谐波抗扰度、静电抗扰度、射频电磁场辐射抗扰度、工频磁场抗扰度、脉冲磁场抗扰度、传导骚扰、辐射骚扰、射频场感应的传导抗扰度等相关设计。   电磁干扰的主要形式   电磁干扰主要是通过传导和辐射方式进入系统,影响系统工作,其他的方式还有共阻抗耦合和感应耦合。   传导:传导耦合即通过导电媒质将一个电网络上的骚扰耦合到另
2023-03-31 11:13:03 114KB 电磁兼容测试的基本方法介绍
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Editorial Reviews Review "...well written and flows smoothly...provides electrical engineering students with a new perspective in applied electromagnetics and circuit design...highly recommended." (CHOICE, September 2006) "...well written and flows smoothly...provides electrical engineering students with a new perspective in applied electromagnetics and circuit design...highly recommended." (CHOICE, September 2006) Product Description A Landmark text thoroughly updated, including a new CD As digital devices continue to be produced at increasingly lower costs and with higher speeds, the need for effective electromagnetic compatibility (EMC) design practices has become more critical than ever to avoid unnecessary costs in bringing products into compliance with governmental regulations. The Second Edition of this landmark text has been thoroughly updated and revised to reflect these major developments that affect both academia and the electronics industry. Readers familiar with the First Edition will find much new material, including: * Latest U.S. and international regulatory requirements * PSpice used throughout the textbook to simulate EMC analysis solutions * Methods of designing for Signal Integrity * Fortran programs for the simulation of Crosstalk supplied on a CD * OrCAD(r) PSpice(r) Release 10.0 and Version 8 Demo Edition software supplied on a CD * The final chapter on System Design for EMC completely rewritten * The chapter on Crosstalk rewritten to simplify the mathematics Detailed, worked-out examples are now included throughout the text. In addition, review exercises are now included following the discussion of each important topic to help readers assess their grasp of the material. Several appendices are new to this edition including Phasor Analysis of Electric Circuits, The Electromagnetic Field Equations and Waves, Computer Codes for Calculating the Per-Unit-Length Parameters and Crosstalk of Multiconductor Transmission Lines, and a SPICE (PSPICE) tutorial. Now thoroughly updated, the Second Edition of Introduction to Electromagnetic Compatibility remains the textbook of choice for university/college EMC courses as well as a reference for EMC design engineers. An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department. From the Publisher Deals with the topic of interference (electromagnetic compatibility) in electronic systems. It builds on basic undergraduate electrical engineering concepts and principles and applies them to the design of electronic systems that operate compatibly with other electronic systems and do not create interference phenomena. To facilitate classroom teaching it is divided in two parts. The first provides the basic principles and skills for review, while the second refers to applications and aspects of EMC design. --This text refers to an out of print or unavailable edition of this title. From the Back Cover A Landmark text thoroughly updated, including a new CD As digital devices continue to be produced at increasingly lower costs and with higher speeds, the need for effective electromagnetic compatibility (EMC) design practices has become more critical than ever to avoid unnecessary costs in bringing products into compliance with governmental regulations. The Second Edition of this landmark text has been thoroughly updated and revised to reflect these major developments that affect both academia and the electronics industry. Readers familiar with the First Edition will find much new material, including: Latest U.S. and international regulatory requirements PSpice used throughout the textbook to simulate EMC analysis solutions Methods of designing for Signal Integrity Fortran programs for the simulation of Crosstalk supplied on a CD OrCAD® PSpice® Release 10.0 and Version 8 Demo Edition software supplied on a CD The final chapter on System Design for EMC completely rewritten The chapter on Crosstalk rewritten to simplify the mathematics Detailed, worked-out examples are now included throughout the text. In addition, review exercises are now included following the discussion of each important topic to help readers assess their grasp of the material. Several appendices are new to this edition including Phasor Analysis of Electric Circuits, The Electromagnetic Field Equations and Waves, Computer Codes for Calculating the Per-Unit-Length Parameters and Crosstalk of Multiconductor Transmission Lines, and a SPICE (PSPICE) tutorial. Now thoroughly updated, the Second Edition of Introduction to Electromagnetic Compatibility remains the textbook of choice for university/college EMC courses as well as a reference for EMC design engineers. About the Author CLAYTON R. PAUL, PHD, is Professor and Sam Nunn Chair of Aerospace Systems Engineering, Department of Electrical and Computer Engineering, Mercer University. He is also Emeritus Professor of Electrical Engineering at the University of Kentucky, where he served on the faculty for twenty-seven years. Dr. Paul is the author of twelve textbooks in electrical engineering, has contributed numerous chapters to engineering handbooks and reference texts, and has published numerous technical papers in scientific journals and symposia. He is a Fellow of the IEEE and a Honorary Life Member of the IEEE EMC Society.
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1.引言     随着电子信息对抗系统、雷达系统、武器控制系统、指挥决策系统、通讯导航系统的发展与升级换代,在有限的频谱范围内,工作频率的高度密集甚至是重叠、单位体积内电磁功率密度的迅速增加、各种电子设备的电磁干扰和敏感度的不断提高。特别是作为对电磁环境有重大影响的载体上的天线,其类型与数量存在着增加的趋势。平台上的天线少则几部,多则十几部几十部,有的甚至达到天线林立的程度。这些状况造成载体内部及其周围空间的电磁环境越来越复杂,从而导致电磁兼容的问题日益突出。作为直接影响和制约系统电磁兼容性的天线,其电磁兼容问题,包括理论分析预测、设计技术和试验调试等自然成为关注的问题。     本文采用
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逆变器的磁场辐射
2023-03-01 17:10:14 12.58MB 电磁兼容
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GB 34660-2017 道路车辆 电磁兼容性要求和试验方法
2023-02-13 14:30:20 1.74MB 标准
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这个标准是宝马汽车最新的电磁兼容测试标准,对从事硬件开发及测试的工作人员有指导作用
2023-02-08 13:42:17 1.63MB 电磁兼容 EMC 测试
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2023-01-27 12:58:23 2.48MB 舰船接地
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