沉积静电效应及防护研究

简述沉积静电的形成机理，介绍了沉积静电的3种放电形式：跳火花和电弧、表面流光放电、电晕放电；讨论了沉积静电的放电效应；通过对无沉积、轻度沉积、严重沉积3种静电条件下电磁场天线接收信号的分析，研究了沉积静电对导航系统的影响；针对沉积静电的危害，从沉积静电防护的目标和防护措施两方面讨论了沉积静电的防护对策。     

静电防护系统理论的探讨及其实际应用

静电放电是一种常见的自然现象，它对电子元器件，产品生产制造，组装的危害所造成损失是不可估测的，针对静电放电对电子产品影响这一特点，依据国内现行静电防护标准和同行业的静电防护的实践经验，对公司的电子车间进行了全方位静电防护设计，在探讨静电防护系统理论的同时也详细地介绍了的静电防护设计及应用／     

电子产品组装中的静电防护

电子元器件按其种类不同，受静电破坏的程度也不一样，随着集成电路技术的迅速发展、生产规模的扩大和集成化程度的提高使静电放电的危害严重影响到电子产品的质量和性能；在电子产品组装中，从元器件的预处理、贴装、焊接、清洗、测试直到包装，都有可能发生因静电对器件的损害。文中讨论有关静电产生的原因、静电危害以及导体带静电的防护、非导体带静电的防护、静电防护器材、静电检测等问题，并就电子产品组装行业如何做好静电防护进行评述。     

电子产品中静电防护问题研究

本文介绍了静电起电、静电放电(ESD)的机理及静电放电的危害,进一步阐述了人体感知静电和产品潜在损伤等问题及其产生的原因.针对静电积聚、静电敏感度和静电耦合能量等产生静电放电的前提条件,按照抑制起电、控制积聚的防护原则,提出了减少静电放电危害,提高电子产品可靠性的具体措施,在设计阶段对产品进行ESD防护网络设计,在生产...     

静电控制物理基础（上）

本文论述了静电放电的基本概念，静电控制的物理基础，静电放电对元器件，及电子设备的可靠性影响，同时也提出了简要的静防护措施。     

系统级ESD对IC的影响研究

随着电子产品复杂度的提高及高速化通讯应用场景的广泛存在，静电放电敏感性的问题日益突出，主要表现为集成电路出现的一系列软失效和硬失效现象，包括卡死、复位、重启甚至损坏等。主要研究了系统级静电放电对集成电路的影响。首先，介绍了静电放电的原理及其测试标准；其次，研究了芯片侧瞬态静电过电压的抓取方式；然后，对应用于不同电路设计的静电防护能力的优劣进行了评估并对比了芯片侧的静电干扰电压水平；最后，验证分析了USB接口不同的接地设计方式和静电放电施加方式对集成电路甚至系统的影响。     

雷达产品静电防护

静电与静电放电(ESD)现象是普遍存在的一种自然现象,静电放电除可造成电子产品失效外,还可能产生电磁脉冲引起雷达产品误动作和信息丢失,本文就雷达产品的静电危害、静电防护的必要性、防护措施作简单介绍。     

LED应用中的静电放电的防护

介绍了静电产生的原因、条件以及对LED的危害等内容，讨论了静电放电的防护方案及产品的应用场合。     

智能电网电力集中器静电放电抗扰度机理及防护方法探讨

本文根据在智能电网中产生的电力集成静电放电抗扰度问题,分别对静电放电产生的原理,静电放电类型做出了简要的概述,并且提出了关于静电放电的防护方法,通过对不同方法的讨论,研究出适合于不同实际情况可以实行的防护方法。以期在未来的智能电网电力集中器静电放电抗扰度防护工作中起到参考作用。     

飞机沉积静电可控泄放方法——静电放电器

飞机飞行中不可避免产生沉积静电,沉积静电的泄放如果控制不好会严重干扰飞机的通信、导航,影响飞行安全。简要说明了沉积静电的产生与危害,从防护原理入手,详细讲述了控制沉积静电泄放的设备——静电放电器的特性,分析了其形状与组成部分,并给出飞机上配置静电放电器数量的计算方法和布置方法,考虑到闪电的影响,阐述了静电放电器在金属和复合材料表面的安装方法,最后分析了全复合材料静电放电器的优点。     

Some techniques for the elimination of corona discharge noise in aircraft antennas

Theories of noise generation and coupling are applied to the problem of devising techniques for the elimination of precipitation static interference in aircraft. The logical consequences of the theory are employed in devising several versions of a decoupled discharger capable of providing precipitation static noise reduction of 60 db. Optimum discharger locations are determined and successful flight tests of the dischargers are described. Various proposed discharger designs are considered in light of the coupling theory, and their performance when tested in the laboratory is discussed. Several antenna designs capable of providing precipitation static reduction on vehicles which do not permit discharger installation are proposed and tested in the laboratory. Electronic techniques for reducing precipitation static interference by operating on the signal at the receiver are considered. Although many of the proposed precipitation-static-elimination techniques are not entirely satisfactory, the decoupled dischargers and decoupled antennas work well enough that precipitation static need not pose a problem under normal flight conditions.     

T形天线的研究

系统地研究位于山谷间T形天线的电特性.采用矩量法求解天线和地面上的静电荷分布密度及电流分布密度,进而计算了T形天线与地面之间的静电容和天线的输入电抗,数值结果与实验结果吻合良好.同时研究了引线及顶线的各项参数变化对天线的有效高度、增益、输入电抗、辐射电阻及静电容的影响.研究表明,增加引线数目、引线间距和加长顶线长度均可以增加天线系统的静电容,减小输入电抗的模值,并使天线的增益有所改善.     

An analysis of corona-generated interference in aircraft

Triboelectric charging, occurring when an aircraft is operated in precipitation, raises the aircraft potential until corona discharges occur from points of high dc field on the aircraft. These corona discharges generate noise which is coupled into receiving systems. The magnitude and spectral distribution of this radio interference, called precipitation static, depends upon three factors: 1) the strength and spectral characteristics of the source discharges, 2) the manner in which the disturbances produced by the discharges couple into the antennas, and 3) the magnitude of the discharge current and its distribution among the discharging extremities. The coupling between the antenna and the noise source is discussed using a reciprocity relationship. Because the geometry of an aircraft is complicated, and a purely theoretical approach to the determination of coupling factors is not possible, a technique developed for measuring absolute values of coupling factor as a function of frequency and position on the aircraft is described. The spectral character of the corona-noise source is studied, including a study of how the source spectrum is affected by altitude. To test the validity of the theory and the results of the laboratory work, calculations are made to predict the noise currents induced in the two test antennas employed in a flight-test program conducted on the Boeing 367-80 aircraft (prototype of the KC-135 and 707). The results of these predictions are compared with the noise spectra measured in flight.     

Influence of external conditions on physical processes and plasma parameters in a model of a high-frequency hybrid plasma system

The results of the experimental investigation into parameters of the helicon discharge plasma in a model of high-frequency hybrid plasma system equipped with a solenoidal antenna are presented. It is shown that an increase in the external magnetic field causes the formation of the plasma column and the displacement of the ion current over the discharge axis towards the lower model flange. The variation in the magnetic field configuration makes it possible to control the shape of the plasma column.     

Impedance of a monopole antenna over a ground plane and immersed in a magnetoplasma

A treatment of the input impedance of a monopole antenna over a ground plane covered with a magnetoplasma with any arbitrary direction of the static magnetic field is presented. The analysis is restricted to a cold plasma with uniaxial and quasi-static approximations. It has been found that for parallel and perpendicular directions of the static magnetic field with respect to the ground plane perfect mirror reflections can be obtained. For other directions of the static magnetic field, the reflection is birefringent so that the monopole impedance becomes modified over a dipole impedance. These modifications can be significant under hyperbolic plasma conditions. A short and a long monopole were considered. From laboratory measurements of a long monopole impedance, the resonance cone and the resonances corresponding to the antenna length have been observed.     

舰载电子产品静电危害及其防护

静电放电（ESD）对于电路引起的干扰是电子抗干扰技术中十分重要的一项,目前,电子产品的静电放电敏感度测试已作为电子兼容性测试的一项重要内容,而舰载电子产品中的静电问题尤为重要,本文就静电产生的机理、静电危害及其防护措施展开简单的讨论。     

超大容量双电层电容器主要技术参数的测试

:介绍了利用时间常数法、恒流充电法及恒流放电法测静电容量 ,详细列出了不同容量值时的测试参数。三种测试方法比较表明 :时间常数法简单实用 ,恒流放电法和恒流充电法准确。同时介绍了等效串联电阻及漏电流的测试方法     

On antenna impedances in a cold plasma with a perpendicular static magnetic field

A flat strip antenna is embedded in a magnetoionic medium with its longitudinal axis perpendicular to the static magnetic field. The antenna characteristics differ for antennas oriented with their surfaces parallel and perpendicular to the static magnetic field. In the former case there are no resistance peaks for frequencies near the plasma frequency and the reactance of a short antenna is capacitive for low frequencies. For frequencies near the gyrofrequency the antennas are electrically longer for the parallel orientation of their surfaces. The accuracy of the solutions is illustrated by computing the tangential electric surface fields that are excited by the approximate current distributions used in the impedance computations.     

Test zone field compensation

Test zone field (TZF) compensation increases antenna pattern measurement accuracy by compensating for extraneous fields created by reflection and scattering of the range antenna field from fixed objects in the range and by leakage of the range RF system from a fixed location in the range. TZF compensation can be used on fixed line-of-sight (static) far-field, compact, and near-field ranges. Other compensation techniques are seldom used in practical measurement situations because they are limited in the amount of compensation they provide. These techniques do not adequately model the type of extraneous field present in the range or require increased measurement time and equipment necessary to implement the technique. TZF compensation overcomes these limits as follows. The TZF is measured over a spherical surface encompassing the test zone using a low gain probe. The measured TZF is used antenna pattern measurements to compensate for extraneous fields. TZF compensation theory is presented and demonstrated using measured data