IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility最新文献

{"title":"Designing LISNs For Open Area Test Sites","authors":"F. Gisin","doi":"10.1109/ISEMC.1992.626152","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626152","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"34 1","pages":"491-493"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81082422","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}

{"title":"Calculations of lightning surge currents inside buildings","authors":"R. B. Standler","doi":"10.1109/ISEMC.1992.626076","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626076","url":null,"abstract":"This paper describes the distribution of surge currents inside a building during a direct lightning strike, on the basis of numerical simulations of building wiring, various loads, and five different combinations of metal oxide varistors connected inside the building as surge arresters and suppressors. The 10/350 ps wave with a peak current of 20 kA, which is widely accepted as a simulation of current in a direct lightning strokes, is used as the source. The network inside a building is modeled as eight branch circuits, each with a different resistive, capacitive, or inductive load and each with a different length. The results of this modeling is compared with the 8/20 and 10/1000 ps standard surge test waveforms. It is shown that the surge test waveforms in ANSIDEEE C62.41 have a peak current and duration that are both too small to represent the effects of a direct lightning strike to the mains. Instead of revising 052.41 to include larger stresses for the environment inside a building, it is urged that standards specify maximum allowable values of peak surge current and rate-of-change of current inside a building. Coordinated surge arresters and suppressors should be used to keep surge currents inside a building within the specified limits.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"74 1","pages":"195-199"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79951843","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}

{"title":"Fuzzy logic implementation of an electromagnetic interactions modelling tool","authors":"J. Lo Vetri, W. H. Henneker","doi":"10.1109/ISEMC.1992.626061","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626061","url":null,"abstract":"An electromagnetic interactions modelling tool which is based on a fuzzy logic representation of the electromagnetic attributes in a topological decomposition of a system is described. The purpose of this tool is to help determine any electromagnetic compatibility problems in complex systems. This tool is an extension of the HardSyslHardDraw software [l, 21 enabling it to handle a fuzzy representation of the electromagnetic interaction data. HardSys, a prototype system implemented in Prolog, is weld to propagate the electromagnetic information through the topology of the represented system. User interaction is through HardDraw, ,an electromagnetic topology drawing tool and an attribute interface. Introduction The adverse effects of electromagnetic interactions in electrical systems are of concern because of the increased pollution of the environment with electromagnetic emissions and because of the increasing susceptibility of system components. From a practical point of view, it is not a simple matter to ensure {he electromagnetic integrity of systems even for relatively small interaction problems. Non-algorithmic or heuristic techniques are used daily by engineers to solve electromagnetic problems in electrical systems. An attempt to formalize these procedures in the form of a computer tool called HardSys/HardDraw was described in [l, 21. The modification of the knowledge representation used in this prototype tool into a fuzzy form [3] is described, This allows the heuristics and uncertain information associated with an interaction problem to be modelled more realistically than was possible in the first version of the tool. Electromaanetic T o r > o l w o f s t t r m s The electromagnetically relevant attributes of an electrical system can be isolated by decomposing the system into its corresponding electromagnetic shielding topology and its dual graph or interaction sequence diagram [4 , 5 , 61. The electromagnetic topology consists of a description of the electromagnetically distinc t volumes and their associated surfaces. The volumes define the electromagnetic components involved in the interaction. The interaction sequence diagram keeps track of the interaction paths throughout the system. The interaction sequence diagram can be simply derived from a given electromagnetic topology. The graph representing a simplified topology of a computer is shown in Fig. 1. Note the different node representation for field nodes, circuit nodes and interaction path nodes [ 1,2]. William H. Henneker Knowledge Systems Laboratory Institute for Information Technology National Research Council Ottawa, Ontario, Canada, K1A OR8 e-mail: bill@ai.iit.nrc.ca Power Cab EM1 Filter Circuit Electronic Distribution Circuitry Interaction Circuit PathNode Node Fig. 1. Interaction Sequence Diagram for a Simple Topology Interaction path nodes, or simply surfaces, are of four types: ffnodes, @-nodes, cf-nodes and cc-nodes. These distinguish between paths connecting the differen","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"18 1","pages":"127-130"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78906588","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}

{"title":"Working Within The Limitations Of System Analysis Software","authors":"D. Boston, T.G. Bowman","doi":"10.1109/ISEMC.1992.626045","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626045","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"31 1","pages":"35-37"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79029494","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}

{"title":"Universities Of York And Hull Joint Master's Degree In EMC","authors":"A. Marvin","doi":"10.1109/ISEMC.1992.626068","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626068","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"71 1","pages":"158-163"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88223822","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}

{"title":"Very Low Frequency To 40 GHz Screening Measurements On Cables And Connectors; Line Injection Method And Mode Stirred Chamber","authors":"B. Eicher, L. Boillot","doi":"10.1109/ISEMC.1992.626099","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626099","url":null,"abstract":"IEC-Line Injection Mescreening effectiveness assemblies. Theoretical background and practical implications will be shortly reviewed. As described in the IEC-Standard the upper frequency limit i s given to be 3 GHz. In turn of experimental work to find the upper frequency limit for this method, single and double braided coaxial cables have been tested in the frequency range of 0.3 MHz to 22 GHz. New insight in cable screening behaviour at very high frequencies have been obtained.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"243 1","pages":"302-307"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73081727","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}

{"title":"Calibration and analysis of coaxial holder for measuring shielding effectiveness of materials","authors":"Y. Haitao, L. Yiming","doi":"10.1109/ISEMC.1992.626127","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626127","url":null,"abstract":"The circular coaxial holder test method is a simple way to measure the far-field shielding effectiveness of plate composite material. It‘s dynamic range and theoretical base is good, but there are some problems should be solved careful1y:The calibration method, accuracy and repeatability owing to unstable contact resistance, impedance mismatch and s o on.This paper deals with these problems. The test results given for calibration sample is consistent with the theoretical analysis.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"24 1","pages":"412-415"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78145177","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}

{"title":"Development of voltage finite-difference time-domain method for numerical modeling of electromagnetic problems","authors":"Yi He, S. Hashemi-Yegzmeh","doi":"10.1109/ISEMC.1992.626060","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626060","url":null,"abstract":"This paper describes the development of a new dynamic finitedifference time-domain code, using the_electric scalar potential V and the magnetic vector potential A as the p$mary_source and variable, to compute electromagnetic fields E and H. The code offers some advantages when the electric potential V becomes the primary source excitation, allowing determination of the electric and the magnetic fields from it.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"29 1","pages":"124-126"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79301234","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}

{"title":"Response Of Typical Aircraft Antennae To Fast Risetime EMP","authors":"L. Hoeft, D. E. Thomas, J. Hofstra, R. Hutchins, R. Karaskiewicz","doi":"10.1109/ISEMC.1992.626058","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626058","url":null,"abstract":"The response of 15 aircraft antennae to fast risetime EIW (FREMP) was determined by experimentally measuring their response to a surface electric field in the frequency domain, transforming the response into the time domain and convolving the result with the Bell Laboratories double exponential and a full amplitude step function. The step response could be 3 to 5 times as high as the double exponential response. Analysis of the measured antenna responses with respect to their physical dimensions showed that a reasonably good estimate of the antenna's transfer function could be obtained from its overall physical dimensions.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"6 1","pages":"116-119"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76228915","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}

{"title":"Harmonic measurement in time domain and harmonic limit standards in power system","authors":"S. He, Jichen He","doi":"10.1109/ISEMC.1992.626073","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626073","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"27 1","pages":"181-182"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90039936","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}