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2009 IEEE International Symposium on Electromagnetic Compatibility最新文献

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Automated measurement of intermittent signals using a time-domain EMI measurement system 使用时域EMI测量系统自动测量间歇性信号
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284582
H. H. Slim, S. Braun, Engin Gulten, A. Frech, P. Russer
{"title":"Automated measurement of intermittent signals using a time-domain EMI measurement system","authors":"H. H. Slim, S. Braun, Engin Gulten, A. Frech, P. Russer","doi":"10.1109/ISEMC.2009.5284582","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284582","url":null,"abstract":"Traditionally emission measurements are carried out in frequency domain using pre- and final scans. Time-domain EMI measurement systems allow to reduce the scan time by orders of magnitude, enabling novel test methods. In this paper the measurement uncertainty for intermittent signals during pre-and final scans is investigated. The effect of the dwell time on the measurement accuracy in the peak and quasipeak detector modes is shown. For conducted emission measurements two test procedures are presented. First method that performs a separate evaluation according to the phase of the LISN, and a second method that performs full maximization. Both methods are used for automated measurement of intermittent and narrowband drifting signals. The total test time is reduced by at least one order of magnitude. Intermittent and narrowband drifting signals, which are still measured today manually, can be measured by the presented procedure automatically. Measurements have been carried out in the frequency range 9 kHz–1 GHz.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115640359","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: 8
Effect of the mutual inductances among grounding conductors on the transient performance of grounding grids 接地导体间互感对接地网暂态性能的影响
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284639
Bo Zhang, Jinliang He, R. Zeng, Jun Hu, Zhanqing Yu
{"title":"Effect of the mutual inductances among grounding conductors on the transient performance of grounding grids","authors":"Bo Zhang, Jinliang He, R. Zeng, Jun Hu, Zhanqing Yu","doi":"10.1109/ISEMC.2009.5284639","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284639","url":null,"abstract":"In this paper, a numerical model is presented to analyze the grounding grids. The effect of the mutual inductances among grounding system conductors on the performance of the grounding grid is investigated. It can be seen that although the effect of the mutual inductances is very small at power frequency, when a large grounding grid buried in soil with low resistivity is analyzed, the effect of the mutual inductances should be taken care of even the frequency is not very high. What's more, when this kind of grounding grid is stricken by a 30 kA 2.6/40 μs lightning current, if the mutual inductances are neglected, although the waveform of the transient potential at the current injected point is almost the same with that considering the mutual inductances at the rise time, it falls more slowly than that considering the mutual inductances.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120978093","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
Electromagnetic penetration studies for three different aircraft 三种不同飞机的电磁穿透研究
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284678
C. Grosvenor, R. Johnk, D. Novotny, D. Camell, G. Koepke, N. Canales
{"title":"Electromagnetic penetration studies for three different aircraft","authors":"C. Grosvenor, R. Johnk, D. Novotny, D. Camell, G. Koepke, N. Canales","doi":"10.1109/ISEMC.2009.5284678","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284678","url":null,"abstract":"The National Institute of Standards and Technology has completed electromagnetic penetration studies on three different aircraft for the Federal Aviation Administration. In these studies, we measured cavity coupling characteristics between antennas placed at various angular positions around an aircraft and determined the field uniformity within these cavities with antennas placed in various compartments inside the aircraft. This paper shows how penetration varies as a function of frequency, antenna type, antenna polarization, and cavity susceptibility for three different aircraft types, a commercial airline jet, a business jet, and a composite aircraft. We also report the quality factor and time decay of fields for internal coupling between two antennas placed in the aircraft at different locations.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121250164","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: 10
A multi-fidelity modelling approach for cosite interference analysis 复合干扰分析的多保真建模方法
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284586
F. German, Matthew Young, Matthew C. Miller
{"title":"A multi-fidelity modelling approach for cosite interference analysis","authors":"F. German, Matthew Young, Matthew C. Miller","doi":"10.1109/ISEMC.2009.5284586","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284586","url":null,"abstract":"The accurate simulation of cosite electromagnetic interference (EMI) is often limited by the information that is available for characterizing the individual systems operating in the cosite environment. In this paper, we present an analysis methodology to address cosite interference predictions using a multi-fidelity modelling approach that provides the analyst with a single integrated simulation environment that allows different prediction techniques to be used depending on what information is available, from fairly simple front-end radio models to more complex methodologies based on non-linear RF system level simulations. An overview of the analysis engines is provided as well as results for an example application using actual measured data.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"65 Suppl 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127342821","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: 15
Solution for the reduction of electromagnetic influences from an electric driving system 减少电力驱动系统电磁影响的解决方案
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284655
P. Nicolae, I. Nicolae, Ioana-Gabriela Sibu
{"title":"Solution for the reduction of electromagnetic influences from an electric driving system","authors":"P. Nicolae, I. Nicolae, Ioana-Gabriela Sibu","doi":"10.1109/ISEMC.2009.5284655","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284655","url":null,"abstract":"This paper presents a series of simulation results and experimental data concerning the operation of an equipment based on power electronics placed on a tram. One toggles with problems related to electromagnetic influences from an urban electric driving system and modalities to remove them. The recordings of the current and voltage waveforms obtained experimentally during the normal running stage of the system are presented and explained. They revealed that the system was designed correctly and fulfils the EMC conditions.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125801978","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: 9
HEMP field coupling with buried power distribution cables HEMP场联轴器与埋地配电电缆
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284570
K. Sunitha, M. J. Thomas
{"title":"HEMP field coupling with buried power distribution cables","authors":"K. Sunitha, M. J. Thomas","doi":"10.1109/ISEMC.2009.5284570","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284570","url":null,"abstract":"The interaction of transient electromagnetic field due to HEMP with multi core buried power distribution cables is studied in this paper. Using transmission line analysis, the induced current on the shield of the cable is computed. The cable transfer impedance is used to find the coupled current in the inner circuit. The variation of the current induced on the inner conductor as a function of the distance along the length of the cable is computed. The influence of the depth of burial of the cable on the induced current is evaluated to determine the soil attenuation effects.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115353957","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
Time Domain Measurements in automotive applications 汽车应用中的时域测量
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284604
W. Winter, Markus Herbrig
{"title":"Time Domain Measurements in automotive applications","authors":"W. Winter, Markus Herbrig","doi":"10.1109/ISEMC.2009.5284604","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284604","url":null,"abstract":"Time Domain Measurements are required to analyze and interpret transient disturbing RF signals. In the area of future automotive applications, transient RF disturbances are becoming critical because comfort options like Bluetooth connection, external devices with complex integrated RF functionality (automotive WLAN, UMTS, GSM, WCDMA, MIMO devices, multiband smart phones, Net-books) have to interface with integrated car entertainment and control systems. Due to the technical concept of such wireless communication networks with digital modulation schemes, the interferences are often short events with transient characteristics. The detection and reproducible measurement of such signals is difficult because of missing trigger signals and can be performed today with Time Domain Measurement Systems using fast A/D converters, digital filters and the Fourier Analysis to transform the measured data into the frequency domain.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114145119","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: 13
On-site EMC testing and interference prevention 现场EMC测试及抗干扰
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284583
T. Schrader, K. Munter, C. Jastrow, Ahmad Daneschnejad, T. Kleine-Ostmann
{"title":"On-site EMC testing and interference prevention","authors":"T. Schrader, K. Munter, C. Jastrow, Ahmad Daneschnejad, T. Kleine-Ostmann","doi":"10.1109/ISEMC.2009.5284583","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284583","url":null,"abstract":"Complex measurement systems being assembled on site have been found to suffer from electromagnetic interference although components of the systems passed the required electromagnetic compatibility (EMC) tests. We present an on-site test system that allows for the EMC evaluation of on-site assembled large measuring system installations in the frequency range from 27 MHz up to 5.8 GHz and propose a solution for interference prevention therein. E.g. weigh bridges for large vehicles and other measuring instruments being subject to legal metrology must not display readings influenced by radio frequency fields [1–3]. A multi-sensor system integrated into the electronics detects any unintentional RF signals coupled into the measuring device and prevents further processing of measured data which are likely being disturbed by RF energy coupled into the system.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114594826","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
Novel assessment technique for investigating potential phased array effects of passenger aircraft 研究客机相控阵潜在效应的新评估技术
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284709
I. Schmidt, A. Enders, R. Geise, M. Schwark
{"title":"Novel assessment technique for investigating potential phased array effects of passenger aircraft","authors":"I. Schmidt, A. Enders, R. Geise, M. Schwark","doi":"10.1109/ISEMC.2009.5284709","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284709","url":null,"abstract":"Signals emitted inside the aircraft by onboard communication systems, e.g. GSM and UWB, propagate on different paths to the outside of the aircraft. In this paper the question is investigated if these signals could be emitted from the aircraft in the manner of a directive antenna or phased array due to the periodicity of the windows, whereby the aircraft itself becomes an aperture antenna. A superposition model is presented to calculate possible radiation patterns. The model was fed with either ideal, coherent excitation or measured phase and magnitude coefficients. The measured data was acquired during a measurement campaign on an Airbus A320 in the frequency range from 450–2100 MHz. The innovative measurement technique to reliably acquire these coefficients is described in detail. No phased array effects were observed at the far field distance.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129830752","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
A describing function method for evaluating the statistics of the harmonics scattered from a non-linear device in a mode stirred chamber 用描述函数法评价模态搅拌室中非线性装置散射的谐波统计量
2009 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2009-10-09 DOI: 10.1109/ISEMC.2009.5284689
A. Marvin, C. Jiaqi, I. Flintoft, J. Dawson
{"title":"A describing function method for evaluating the statistics of the harmonics scattered from a non-linear device in a mode stirred chamber","authors":"A. Marvin, C. Jiaqi, I. Flintoft, J. Dawson","doi":"10.1109/ISEMC.2009.5284689","DOIUrl":"https://doi.org/10.1109/ISEMC.2009.5284689","url":null,"abstract":"The statistics of the received radiation scattered from a non-linear device within a reverberation chamber are examined by measurement and Monte-Carlo simulation. A Describing Function formulation is used for the non-linear analysis that enables the complete dynamic range of the non-linear process to be described. The work is a precursor to developments in diagnostic immunity measurements for digital electronic hardware.","PeriodicalId":268582,"journal":{"name":"2009 IEEE International Symposium on Electromagnetic Compatibility","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124645387","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
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