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1978 IEEE International Symposium on Electromagnetic Compatibility最新文献

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The Impact of the Total Lightning Environment on Aircraft Flight Control Systems 雷电环境对飞机飞行控制系统的影响
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566856
D. Clifford
{"title":"The Impact of the Total Lightning Environment on Aircraft Flight Control Systems","authors":"D. Clifford","doi":"10.1109/ISEMC.1978.7566856","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566856","url":null,"abstract":"Much of the concern over lightning induced transients in critical aircraft flight control systems has centered on the return stroke cur­ rent aspect o f lightning. The very high peak currents associated with lightning (up to 200,000 amps) and the rapidly changing magnetic fields would appear to pose the most significant threat to electronic systems. However, recently reported flight data coupled with new in­ formation from laboratory tests indicate that other aspects o f the lightning flash, such as E-field changes and radiated RF, may pose as much o f a threat as the high peak currents for m odem , well-designed systems. This paper proposes a Total Lightning Threat Scenario which identifies specific aspects of a lightning strike which may impact avionics design and performance and relates them to observed labora­ tory and flight test data.","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125515538","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: 3
Internal Body Potentials and Currents from ELF Electric Fields and Household Appliances 来自ELF电场和家用电器的体内电位和电流
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566867
M. Frazier, J. Bridges, R. Hauser
{"title":"Internal Body Potentials and Currents from ELF Electric Fields and Household Appliances","authors":"M. Frazier, J. Bridges, R. Hauser","doi":"10.1109/ISEMC.1978.7566867","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566867","url":null,"abstract":"To provide quantitative data on the effects of electric fields from power lines and leakage currents from household appliances on patients with implanted pacemakers, a semi-empirical prediction method was de­ veloped. Input data to the prediction model included in vitro susceptibility bench tests on pacemakers, in vivo exposure measurements on baboons with implanted pacemakers, and nonhazardous, noninvasive tests on humans. The results show that widespread interference from 60 Hz electric fields or currents does not con­ stitute a problem for the vast majority of pacemaker patients. Several remedial approaches have been iden­ tified for the small group of patients where the possi­ bility of interference may occur. The paper describes the basic modeling concept for relating the fields and body currents to the voltage sensed by the implanted pacemaker. The methods used to obtain empirical data for the model and to verify the model by in vivo animal testing are described. The ex­ tension of the model to the human form is presented along with examples of predictions for electric field and body current excitation for various implant ar­ rangements and pacemaker sensitivities.","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114743699","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: 6
Electromagnetic Field Penetration into a Spherical Cavity - A New Approach 电磁场穿透球面空腔的一种新方法
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566893
P. K. Bondyopadhyay
{"title":"Electromagnetic Field Penetration into a Spherical Cavity - A New Approach","authors":"P. K. Bondyopadhyay","doi":"10.1109/ISEMC.1978.7566893","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566893","url":null,"abstract":"","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133024938","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
Interference Limit for Antenna Current in Proposed SEAFARER ELF Communication System 海员ELF通信系统中天线电流的干扰限制
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566865
L. Valcik, A. Valentino
{"title":"Interference Limit for Antenna Current in Proposed SEAFARER ELF Communication System","authors":"L. Valcik, A. Valentino","doi":"10.1109/ISEMC.1978.7566865","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566865","url":null,"abstract":"","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123056595","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
Physical Interpretation of the IEMCAP Integrated EMI Margin IEMCAP综合电磁干扰余量的物理解释
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566876
R. A. Pearlman
{"title":"Physical Interpretation of the IEMCAP Integrated EMI Margin","authors":"R. A. Pearlman","doi":"10.1109/ISEMC.1978.7566876","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566876","url":null,"abstract":"The IEMCAP computes an in t e g r a t e d EMI margin ( I .M .) t h a t i s used in a s s e s s i n g e le c tr o m a g n e t ic c o m p a t ib i l i t y o f e l e c t r o n i c systems-*-. T h is paper t r e a t s th e s u b j e c t o f th e I.M. in some depth , d e s c r ib in g i t s p h y s i c a l meaning i n r e l a t i o n to r e a l hardware, how i t i s d e r iv e d from a sy stem m odel, and how i t i s used by th e EMC e n g in e e r . A method i s recommended fo r q u a n t i fy in g key param eters e n te r in g i n t o the I.M. com putation, based on hardware performance c h a r a c t e r i s t i c s and system d e s ig n c o n s id e r a t io n s such as n o i s e f i g u r e , s i g n a l t o n o i s e r a t io and s e n s i t i v i t y . To dem onstrate the p h y s ic a l meaning o f the I .M ., an experim ent i s d e sc r ib e d in which th e t h e o r e t i ­ c a l l y d e r iv e d I.M. can be c o r r e la t e d w ith measured d a ta .","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"380 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116056281","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: 5
A Mathematical Analysis of the Electromagnetic Compatibility of Twisted Wires 双绞线电磁兼容性的数学分析
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566824
A. Rashid
{"title":"A Mathematical Analysis of the Electromagnetic Compatibility of Twisted Wires","authors":"A. Rashid","doi":"10.1109/ISEMC.1978.7566824","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566824","url":null,"abstract":"In this paper the electromagnetic compatibility of twisted wires is evaluated. A twisted pair is uniquely represented by arrays of loops and dipoles. For many practical applications, the circum­ ference of the loop is small compared to the wavelength of in ter­ ference. When such is the case, only the transmission mode of pro­ pagation and normal mode of radiation are of interest, as the ax­ ial mode of radiation is very small compared to the normal mode of radiation. Mathematical formulas of power received by arrays for both uniform and non-uniform excitation are compared with the power received by a two-wire line of the same length as the a r­ ray. The relative shielding effectiveness of a twisted-pair cable with respect to a two-wire line is calculated from their power ratio.","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121512388","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: 5
A Probabilistic Model of Magnetic Induction from Power Distribution Systems 配电系统磁感应的概率模型
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566864
J. C. Parker
{"title":"A Probabilistic Model of Magnetic Induction from Power Distribution Systems","authors":"J. C. Parker","doi":"10.1109/ISEMC.1978.7566864","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566864","url":null,"abstract":"Insuring electromagnetic compatibility with expanding commercial power systems requires knowledge of fundamental relationships that quantify likely levels of induction. A stochastic modeling technique is introduced that Accommodates the inherent variability in both placement and level of power system loads. These new broad-brush results furnish a needed tool for inductive coordination and long-term planning.","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122157699","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
General Electromagnetic Model for the Analysis of Complex Systems (GEMACS) 复杂系统分析通用电磁模型(GEMACS)
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566874
K. Siarkiewicz
{"title":"General Electromagnetic Model for the Analysis of Complex Systems (GEMACS)","authors":"K. Siarkiewicz","doi":"10.1109/ISEMC.1978.7566874","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566874","url":null,"abstract":"Abstract : This report contains a detailed introduction to the General Electromagnetic Model for the Analysis of Complex Systems (GEMACS). It contains a thorough discussion of all of the commands in the GEMACS executive and geometry languages and explains their use by reference to a sample problem that is explained in great detail throughout the document. Suggested uses of GEMACS are provided along with the executive command streams to exercise these capabilities. The document is meant to be the initial exposure to the user of the GEMACS analysis tool. In this it supplements the User's Manual in that the latter is written more in the form of a handbook to be used as a reference on the format of the various commands. (Author)","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124586616","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: 11
Hospital Proximities to Nearby Broadcast Stations 医院靠近附近的广播电台
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566837
R. Tell, D. L. Lambdin, E. Mantiply
{"title":"Hospital Proximities to Nearby Broadcast Stations","authors":"R. Tell, D. L. Lambdin, E. Mantiply","doi":"10.1109/ISEMC.1978.7566837","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566837","url":null,"abstract":"A technique for identifying hospital locations which are potentially subject to high intensity radio­ frequency fields from nearby broadcast stations is discussed. A medical care facilities data base representing 27 percent of all existing such facili­ ties in the United States was used in conjunction with an automated broadcast station data base to determine and analyze distances between hospitals and nearby stations. It was determined that 20 percent of all hospitals are located within one mile of at least one FM broadcast station. The closest observed separation distance was 0.02 mile. Data are presented which allow determination of the fraction of hospitals having minimum separation distances ̂ various values for AM, FM, and TV stations. Information is provided on the number of such stations found within one mile of each hospital studied and the total effective radiated power of these stations.","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"194 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116785324","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
Validation of IEMCAP using the B-52 使用B-52验证IEMCAP
1978 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1978-06-20 DOI: 10.1109/ISEMC.1978.7566875
Forrest Karl Gardner, Steven A. Davidson
{"title":"Validation of IEMCAP using the B-52","authors":"Forrest Karl Gardner, Steven A. Davidson","doi":"10.1109/ISEMC.1978.7566875","DOIUrl":"https://doi.org/10.1109/ISEMC.1978.7566875","url":null,"abstract":"This study a s s e s s e d the e f f e c t i v e n e s s o f th e I n tr a ­ system E lec trom agn etic C o m p a t ib il i ty A n a ly s is Program (IEMCAP) i n p r e d ic t in g antenn a-cou p led in t e r f e r e n c e problem s. The B-52 a i r c r a f t i s used i n th e c a se s tu d y . The study co n c lu d es th a t IEMCAP does c o r r e c t l y p r e d ic t a h ig h p ercen ta g e o f a c t u a l in t e r f e r e n c e problem s.","PeriodicalId":377995,"journal":{"name":"1978 IEEE International Symposium on Electromagnetic Compatibility","volume":"518 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133976770","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: 4
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