1982 IEEE International Symposium on Electromagnetic Compatibility最新文献_第4页

Electromagnetic Transients in High-Voltage Power Stations 高压电站的电磁瞬变

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567778

D. F. Herrick, B. Russell

引用次数: 0

IUS EMC Voltage Monitoring Instrumentation System IUS EMC电压监测仪表系统

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567792

R. C. Dyer

引用次数: 1

Electromagnetic Penetration of a Composite Panel in a Perfectly Conducting Surface 复合板在完美导电表面的电磁穿透

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567739

K. Casey

{"title":"Electromagnetic Penetration of a Composite Panel in a Perfectly Conducting Surface","authors":"K. Casey","doi":"10.1109/ISEMC.1982.7567739","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567739","url":null,"abstract":"The increasing use of advanced composite mate rials in, for example, aircraft skin fabrication raises concerns about the shielding effectiveness of electromagnetic enclosures made partly or completely of a composite material. Not only the reduced equiva lent conductivity of advanced composites in comparison to metals [ 1], but also the contact resistance along composite-to-composite and metal-to-composite joints, will contribute to a degradation in electromagnetic shielding by such enclosures. It is our purpose in this short paper to investigate one aspect of this problem, the low-frequency magnetic field penetration of a conductive (e.g., graphite-epoxy) composite panel in an otherwise perfectly conducting plane surface 'of infinite transverse extent and infinitesimal thick ness. We assume that the contact conductance between the panel and the surrounding perfect conductor is finite, so as to examine the effect of an imperfect electrical bond on the shielding afforded by the panel. We shall show, by formulating and then by approximately solving an appropriate boundary-value problem of potential theory, that the magnetic aperture polarizability of the composite panel, a m ,","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130181320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Transfer Impedance Test Clamp - Improvements in Electronic Cable Shield Effectiveness Measurement Techniques 传输阻抗测试钳——电子电缆屏蔽效能测量技术的改进

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567771

A. Tsaliovich

引用次数: 5

Lightning Hazards Due to Composite Materials in Aircraft 飞机上复合材料的雷电危害

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567740

P. Little

{"title":"Lightning Hazards Due to Composite Materials in Aircraft","authors":"P. Little","doi":"10.1109/ISEMC.1982.7567740","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567740","url":null,"abstract":"The most important type of composite material at present in use in the aircraft industry is made up of carbon fibres in an epoxy resin matrix, or carbonfibre composite (CFC). This is rather poorly-conducting fibre1 (1.4 x 10'5fim) embedded in an insulating medium with the fibre volume usually about 60% of the whole. The resistivity of the composite below about 1MHz is independent of frequency and is between two and three orders of magnitude greater than that of aluminium alloy (5.2 x 10\"®nm) if long fibres are used. This is the normal practice for aircraft work. Long fibres are used in 'tows' side by side, or sometimes woven to form a mat, coated with resin, and partially cured (pre-preg).. If chopped fibres are used the resistivity is about two orders of magnitude greater. Using long fibre tows in pre-preg form the direction of each lamina can be determined from the mechanical performance required. The resistance o f the whole material depends on the fibre type, the pattern of lay-up used, the fraction of carbon fibre in the final composite and on the manufacturing process. In unidirectional CFC with current parallel to the fibre direction the dc resistivity is 1.0 x 10” 5fim according to Gajda2 . Values of about 2.0 x 10\"5fim have been obtained by Smithers3 and others for composites having a fibre volume-fraction'of 0.6 to 0.65. The resistivity with current flow perpendicular to the' fibre is several hundred times larger. In multi-ply laminates having a variety of fibre directions the behaviour of the bulk laminate is much more isotropic than the undirectional CFC.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127954104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing Business Machine Cabinets for Optimal EMI Shielding 设计商业机器机柜以获得最佳的电磁干扰屏蔽

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567729

Grover Boothman, J. Reilly

引用次数: 2

The Inside and the Outside are not the Same -- Experimental Investigations of Ground and Shield Topology 内外不同——接地与屏蔽拓扑的实验研究

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567720

R. Bly, E. Tonas

引用次数: 2

Applying EMC Technology to the Next Generation of Navy Ships 将电磁兼容技术应用于下一代海军舰艇

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567785

M. Kant

引用次数: 0

Bringing ESD Testing Into the 20Th Century 将ESD测试带入20世纪

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567749

H. Hyatt, H. Mellberg

引用次数: 6

Comparison of Experimental and Numerical Results for the Interaction of a Scale Model Aircraft with a Simulated Lightning Channel 比例模型飞机与模拟闪电通道相互作用的实验与数值比较

1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567781

R. Perala, T. Rudolph, T. Trost, C. Turner

引用次数: 0