Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568706
J. Bridges
{"title":"Measurement and Use of Incremental Cable Pickup Parameters","authors":"J. Bridges","doi":"10.1109/ISEMC.1976.7568706","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568706","url":null,"abstract":"","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128561687","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568698
J. Fontaine, J. Faure, C. Gary
In this paper we shall present two useful calculations in electromagnetic compatibility works. A computational procedure is developped for a quick prevision of the electromagnetic field inten sity in the proximal region of a finite overhead line in the frequency range dc-30 MHz. The classical theory of dipole radiation in the presence of a conducting earth is combined with an accurate digital integration technique to provide a solution that is both accurate and straight forward. The response and current distribution of a terminated one-wire transmission line set.over the ground and excited by a non-uniform electromagnetic field is given. The earth conduction effects are con sidered. The purpose of such studies is to determine the electromagnetic interferences on data transmission lines arising from the electric resonance of the con necting bar in a high-voltage transformer station. A comparison between computer results and experimental measurements is provided.
{"title":"Electromagnetic Field, in a High Frequency Range, of High-Voltage Transmission Lines and Its Effects on the Response of a Terminated One-Wire Transmission Line Set Near the Ground","authors":"J. Fontaine, J. Faure, C. Gary","doi":"10.1109/ISEMC.1976.7568698","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568698","url":null,"abstract":"In this paper we shall present two useful calculations in electromagnetic compatibility works. A computational procedure is developped for a quick prevision of the electromagnetic field inten sity in the proximal region of a finite overhead line in the frequency range dc-30 MHz. The classical theory of dipole radiation in the presence of a conducting earth is combined with an accurate digital integration technique to provide a solution that is both accurate and straight forward. The response and current distribution of a terminated one-wire transmission line set.over the ground and excited by a non-uniform electromagnetic field is given. The earth conduction effects are con sidered. The purpose of such studies is to determine the electromagnetic interferences on data transmission lines arising from the electric resonance of the con necting bar in a high-voltage transformer station. A comparison between computer results and experimental measurements is provided.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131112012","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568751
V. Eveleigh
A significant amount of effort has been devoted over the last two years to the development of detailed specifications for a test control and simula tion computer. The complete facility is intended to consist of an anechoic chamber for high intensity RF testing of missiles and other similar vehicles over a wide frequency range, plus the ancilliary equipment such as RF sources, antennas, instrumentation, etc. re quired to make such testing' feasible. A hybrid compu ter system will be used in this facility to automate and control a variety of extensive test sequences. In addition, the computer will be capable of standard data storage, signal processing, and display functions, plus real time simulation of missile-target pursuit scenarios for evaluation of tracking performance capabilities. Anachoic chamber experiments will generally be related to evaluation of missile tracking efficiency and the effects of RF interference upon overall system perfor mance and effectiveness. The general characteristics of the test and computer system are considered in this paper.
{"title":"Specifications for a Test Control and Simulation Computer","authors":"V. Eveleigh","doi":"10.1109/ISEMC.1976.7568751","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568751","url":null,"abstract":"A significant amount of effort has been devoted over the last two years to the development of detailed specifications for a test control and simula tion computer. The complete facility is intended to consist of an anechoic chamber for high intensity RF testing of missiles and other similar vehicles over a wide frequency range, plus the ancilliary equipment such as RF sources, antennas, instrumentation, etc. re quired to make such testing' feasible. A hybrid compu ter system will be used in this facility to automate and control a variety of extensive test sequences. In addition, the computer will be capable of standard data storage, signal processing, and display functions, plus real time simulation of missile-target pursuit scenarios for evaluation of tracking performance capabilities. Anachoic chamber experiments will generally be related to evaluation of missile tracking efficiency and the effects of RF interference upon overall system perfor mance and effectiveness. The general characteristics of the test and computer system are considered in this paper.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115089207","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568708
W. Parker
exist (M IL-F-15733e f i l t e r manufacturers ' c a ta lo g s , e t c . ) there is a con tinu ing common d e f ic iency o f know ledge of re levan t and suffic ien t items to b e included in formal f i l te r procurement sp ec if ica t io n s . A sp ec if ie r will often d rastica lly over o r under specify the f i l te r a c tu a l ly n e e d e d , o r may g ive conflic ting requirem ents. Some o f the param eters discussed herein may be p re-im posed upon the f i l te r sp ec if ie r by a prime purchaser . This paper is devoted to assisting in cases ■ in which the immediate f i l te r spec if ie r has a major d eg ree of control o ver the process of g enera ting the f i l te r sp e c if ic a t io n . M ajor topics to be covered herein include desired in-system noise a tten u a t io n perform ance , d is tu rbance o f a system caused by f i l te r insertion , e le c tr ica l w ithstanding cap a b i l i ty o f a f i l te r , cost and volume im pact of unnecessary e le c tr ic a l re quirem ents , env ironm en ta l /m echan ica l considera tions , and m echanical de s ig n . The approach used will be a discussion o f the important aspects o f f i l te r u sage , follow ed by a list of suggested spec if ica t ion p ra c t ice s , and a list o f p rac t ice s to a v o id .
存在(M IL-F-15733e 如果它是由制造商的c - a - c - a - c - a - c - c)。有一种持续的共同要求，即对相关的知识和足够的项目有足够的了解，以便在正式的采购计划中包括在采购计划中。一个特殊的需求需求通常会超过或低于指定的需求需求，因此可能会给出冲突的需求。本文所讨论的某些参数，如果是由主要购买者购买的，则可以在其基础上重新提出。本文致力于在以下情况下提供帮助:在这种情况下，如果用户对生成该用户名的过程有很大的控制权，则立即使用该用户名。M ajor主题覆盖在此包括所需的系统噪声tten u t io n执行情况,d是你rbance o系统由f i l te r插入,e le c l tr ica w ithstanding帽我l我泰o f f l te r,成本和体积im协议不必要的le c tr ic e l re - quirem树人,env ironm en ta l / M echan ica l推崇,和M echanical de s ig n。所使用的方法将是讨论它的重要方面，然后是一个建议的规范列表，以确定它是否符合标准，以及一个列表，以确定它是否符合标准。
{"title":"How to Specify an EMI Filter","authors":"W. Parker","doi":"10.1109/ISEMC.1976.7568708","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568708","url":null,"abstract":"exist (M IL-F-15733e f i l t e r manufacturers ' c a ta lo g s , e t c . ) there is a con tinu ing common d e f ic iency o f know ledge of re levan t and suffic ien t items to b e included in formal f i l te r procurement sp ec if ica t io n s . A sp ec if ie r will often d rastica lly over o r under specify the f i l te r a c tu a l ly n e e d e d , o r may g ive conflic ting requirem ents. Some o f the param eters discussed herein may be p re-im posed upon the f i l te r sp ec if ie r by a prime purchaser . This paper is devoted to assisting in cases ■ in which the immediate f i l te r spec if ie r has a major d eg ree of control o ver the process of g enera ting the f i l te r sp e c if ic a t io n . M ajor topics to be covered herein include desired in-system noise a tten u a t io n perform ance , d is tu rbance o f a system caused by f i l te r insertion , e le c tr ica l w ithstanding cap a b i l i ty o f a f i l te r , cost and volume im pact of unnecessary e le c tr ic a l re quirem ents , env ironm en ta l /m echan ica l considera tions , and m echanical de s ig n . The approach used will be a discussion o f the important aspects o f f i l te r u sage , follow ed by a list of suggested spec if ica t ion p ra c t ice s , and a list o f p rac t ice s to a v o id .","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122864604","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568758
T. Babij, H. Trzaska
The subject of the presented work is ana lysis of factors limiting wideband properties of probes for magnetic field intensity measu rement. The analysed kind of probes consists of loop antenna, correction elements forming frequency response and a detector having squa re law characteristics. This work discusses wideband properties of measurement probes and means of their cor rection in the possible widest frequency ran ge. It also analyses some other factors in fluencing accuracy of the magnetic field mea surements in the near field.
{"title":"Properties of Wideband Magnetic Field Probes","authors":"T. Babij, H. Trzaska","doi":"10.1109/ISEMC.1976.7568758","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568758","url":null,"abstract":"The subject of the presented work is ana lysis of factors limiting wideband properties of probes for magnetic field intensity measu rement. The analysed kind of probes consists of loop antenna, correction elements forming frequency response and a detector having squa re law characteristics. This work discusses wideband properties of measurement probes and means of their cor rection in the possible widest frequency ran ge. It also analyses some other factors in fluencing accuracy of the magnetic field mea surements in the near field.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128271093","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568717
M. B. Dow
Recent progress made by NASA in applications of advanced composites to aircraft structures is reviewed. Particular emphasis is given to flight service evaluation programs that are or will be accumulating experience with secondary and primary structural components on aircraft. The NASA flight service programs are conducted to obtain practical experience in design, manufacturing and operational considerations for a variety of aircraft components. The primary focus for the programs have been commercial transports. To establish confidence in advanced composites to a point where both transport builders and transport users are willing to make long-term production commitments using composites, NASA has initiated a series of programs to introduce advanced composites into airline fleet service. In implementing this program, initial applications were selective reinforcement of metal components on military aircraft. Small secondary structural components for commercial transports were added to the program; larger secondary components are being fabricated; and large primary structural components are in the design or planning stage. Results will be présented from flight service programs with composite-reinforced metal structures in the CH-54B helicopter tail cone and the C-130 transport aircraft wing boxes. Experience with advanced composite components on the L-1011, B-737 and DC-10 commercial transports will be also reported. A description of future NASA programs that are aimed at composite primary structures in commercial transport aircraft and at development of high-temperature composites technology that may be applicable to future supersonic aircraft will also be reviewed.
{"title":"Abstract Trends in Application of Advanced Composites to Commercial Aircraft","authors":"M. B. Dow","doi":"10.1109/ISEMC.1976.7568717","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568717","url":null,"abstract":"Recent progress made by NASA in applications of advanced composites to aircraft structures is reviewed. Particular emphasis is given to flight service evaluation programs that are or will be accumulating experience with secondary and primary structural components on aircraft. The NASA flight service programs are conducted to obtain practical experience in design, manufacturing and operational considerations for a variety of aircraft components. The primary focus for the programs have been commercial transports. To establish confidence in advanced composites to a point where both transport builders and transport users are willing to make long-term production commitments using composites, NASA has initiated a series of programs to introduce advanced composites into airline fleet service. In implementing this program, initial applications were selective reinforcement of metal components on military aircraft. Small secondary structural components for commercial transports were added to the program; larger secondary components are being fabricated; and large primary structural components are in the design or planning stage. Results will be présented from flight service programs with composite-reinforced metal structures in the CH-54B helicopter tail cone and the C-130 transport aircraft wing boxes. Experience with advanced composite components on the L-1011, B-737 and DC-10 commercial transports will be also reported. A description of future NASA programs that are aimed at composite primary structures in commercial transport aircraft and at development of high-temperature composites technology that may be applicable to future supersonic aircraft will also be reviewed.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133583824","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568691
L. Berry
{"title":"Output Oriented Measures of Spectrum Efficiency","authors":"L. Berry","doi":"10.1109/ISEMC.1976.7568691","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568691","url":null,"abstract":"","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126091650","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568738
N. Ahmed, D. Hein, D. Walker, D. Parikh, B. Vujjini
The main objective of this paper is to discuss some signal processing aspects pertaining to electro encephalograph (EEG) data. First, digital filters which enable one to extrapolate the THETA and ALPHA components of EEG data are presented. Next, the energy outputs of these filters are used to suggest a plaus ible quantitive measure for assessing the effective ness of a biofeedback training process. Some of the related experimental results are also included.
{"title":"On the Digital Processing of EEG Data","authors":"N. Ahmed, D. Hein, D. Walker, D. Parikh, B. Vujjini","doi":"10.1109/ISEMC.1976.7568738","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568738","url":null,"abstract":"The main objective of this paper is to discuss some signal processing aspects pertaining to electro encephalograph (EEG) data. First, digital filters which enable one to extrapolate the THETA and ALPHA components of EEG data are presented. Next, the energy outputs of these filters are used to suggest a plaus ible quantitive measure for assessing the effective ness of a biofeedback training process. Some of the related experimental results are also included.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115496529","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568718
Christopher L. Blake
In recent years composite materials have been developed to the point that their strength and weight characteristics make them very attractive as substitutes for metals in various aircraft applications. However, from the electrical standpoint, composites are marginally conductive materials which are capable of supporting only a very minimal current flow, are in many cases capable of providing only marginal shielding and are in some ways unique in their characteristics with respect to electromagnetic fields. The electrical and electromagnetic impact of composites is directly related to the ways in which composites change aircraft characteristics such as lightning protection, shielding effectiveness, electrical systems, antenna operation, static electricity protection and radar cross-section. Because of the change in these various characteristics, weapon system design and development from fuel system, avionics and electrical systems to methods of installation for electrical ground jacks and static electricity dischargers may be significantly affected.
{"title":"Composites - Their Electrical and Electromagnetic Impact","authors":"Christopher L. Blake","doi":"10.1109/ISEMC.1976.7568718","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568718","url":null,"abstract":"In recent years composite materials have been developed to the point that their strength and weight characteristics make them very attractive as substitutes for metals in various aircraft applications. However, from the electrical standpoint, composites are marginally conductive materials which are capable of supporting only a very minimal current flow, are in many cases capable of providing only marginal shielding and are in some ways unique in their characteristics with respect to electromagnetic fields. The electrical and electromagnetic impact of composites is directly related to the ways in which composites change aircraft characteristics such as lightning protection, shielding effectiveness, electrical systems, antenna operation, static electricity protection and radar cross-section. Because of the change in these various characteristics, weapon system design and development from fuel system, avionics and electrical systems to methods of installation for electrical ground jacks and static electricity dischargers may be significantly affected.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134480271","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}
Pub Date : 1976-07-13DOI: 10.1109/ISEMC.1976.7568729
R. Schlentz, Kristina L. Larson, K. Exworthy
This study evaluates two systems for measuring the susceptibility to EMI of implant able cardiac pacemakers. Each system consist ed of four parts: the pacemaker; a 450 MHz electromagnetic field; the instrumentation for monitoring pacemaker function; and the medium in which the pacemaker is placed for test. The two systems differed in the medium used; one was an empirically derived solution and the second was a canine.
{"title":"Evaluation of In Vivo Versus In Vitro Test Methods for the Determination of Electromagnetic Compatibility of Implantable Cardiac Pacemakers at 450 MHz","authors":"R. Schlentz, Kristina L. Larson, K. Exworthy","doi":"10.1109/ISEMC.1976.7568729","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568729","url":null,"abstract":"This study evaluates two systems for measuring the susceptibility to EMI of implant able cardiac pacemakers. Each system consist ed of four parts: the pacemaker; a 450 MHz electromagnetic field; the instrumentation for monitoring pacemaker function; and the medium in which the pacemaker is placed for test. The two systems differed in the medium used; one was an empirically derived solution and the second was a canine.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132765439","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}
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