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Dissertations / Theses on the topic 'Measurement of electromagnetic interference'

Author: Grafiati

Published: 28 June 2021

Last updated: 5 February 2022

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1

Freeman, Larry. "PREDICTION AND MEASUREMENT OF RADIATED EMISSIONS BASED ON EMPIRICAL TIME DOMAIN CONDUCTED MEASUREMENTS." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4232.

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This thesis develops a novel method to predict radiated emissions measurements. The techniques used are based on standard Electromagnetic Compatibility (EMC) qualification test methods. The empirical data used to formulate the final results was restricted to pertinent data protocol waveforms however the entire method may be applied to any waveforms for which empirical radiated emissions have been measured. The method provides a concise means for predicting worst case radiated emissions profiles based on empirical measured data.<br>M.S.E.E.<br>School of Electrical Engineering and Computer Scien

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2

Dawson, Linda. "New techniques for the measurement of radiated emissions in a screened room for frequencies up to 200MHz." Thesis, University of York, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238715.

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3

Tigga, Celine. "Modelling of Measurement Equipment for High Frequency Electromagnetic Fields." Thesis, Högskolan i Gävle, Avdelningen för elektronik, matematik och naturvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-18894.

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The aim of this thesis was to develop a model of a receiver which could be quickly used to analyze radiated interference levels from data captured at the output of the antenna equipment used to measure radiated energy. Active circuits were mainly used in developing this model for the ease with which the design and simulations could be carried out in OrCAD. The guiding document for the thesis work has been CISPR 16-1-1 (International Special Committee on Radio Interference part 16-1-1) which specifies the characteristics and performance of equipment for the measurement of radiated interference.

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Fu, Xubo. "Measurement of electromagnetic interferences generated from repair work and vehcles." Thesis, Högskolan i Gävle, Avdelningen för elektronik, matematik och naturvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-7983.

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In the industrial and factory when the electronic and machinery instruments are working the huge electromagnetic interference (EMI) would be generated by them which are big deal to the main disturbance of wireless communication. So the measurement of EMI is quite useful and important for electromagnetic compatibility (EMC). The main goal of my paper is analysis in which bandwidth of EMI influences to wireless communication system in the industrial and factory generated by working arc-welding instrument and moped. The method is used the traditional and classic statistical methodology to identif

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5

Azpúrua, Marco A. "Full time-domain electromagnetic interference measurements and applications." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/587194.

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This thesis presents a technology that has been called the Full Time-Domain Electromagnetic Interference measurement systems and its applications. Full TDEMI measurement systems are an implementation of an FFT-based receiver that enables the usage of oscilloscopes for EMI measurements. They follow the virtual instrumentation approach for transforming oscilloscopes into a compliant CISPR 16-1-1 receiver. Full TDEMI measurement systems have been assessed for characterizing their performance using waveform oriented calibration procedures that bridge the gap between direct measurements in the ti

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6

Midya, Surajit. "Conducted and Radiated Electromagnetic Interference in Modern Electrified Railways with Emphasis on Pantograph Arcing." Doctoral thesis, Stockholm : Skolan för elektro- och systemteknik, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10574.

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7

Ebertsohn, Nolan Wade. "Cable trays and EMC : modelling and measurement." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50293.

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Thesis (MScEng)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: Common mode currents are a major source of interference in electrical and electronic systems. A universal solution to counteract common mode interference is to introduce an electromagnetic shield with known characteristics. Cable trays are often used to shield cables from unwanted electromagnetic interference (EM!) and its shielding characteristics are defined in terms of its transfer impedance. This thesis pursues the modelling and measurement of the transfer impedance and mutual inductance of non-magnetic cable tra

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Khan, Zulfiqar A. "EMI/EMC analysis of electronic systems subject to near zone illuminations." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196207323.

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9

Slim, Hassan Hani [Verfasser]. "Methods to Increase the Bandwidth of Broad-Band Time-Domain Electromagnetic Interference Measurement Systems / Hassan Hani Slim." Aachen : Shaker, 2014. http://d-nb.info/104937990X/34.

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10

Váško, Ondřej. "Virtuální měřicí systém pro nestandardní bezodrazové komory." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219966.

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Master thesis examines a selected part of electromagnetic compatibility. In this work, there is theoretically discussed how electromagnetic interference appears and how is spread through free space environment. To eliminate ambient interference signals, the measurements have been performed in anechoic chamber where the undesirable interference signals were suppressed. In the thesis, there are also described parameters of EMI receivers and limits of electromagnetic interference. The description of calculations of the antenna height for finding maximum intensity of electric field strength for st

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11

Krishnamoorthy, Seshagiri. "Interference Measurements and Throughput Analysis for 2.4 GHz Wireless Devices in Hospital Environments." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31821.

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In recent years, advancements in the field of wireless communication have led to more innovative consumer products at reduced cost. Over the next 2 to 5 years, short-range wireless devices such as Bluetooth and Wireless Local Area Networks (WLANs) are expected to become widespread throughout hospital environments for various applications. Consequently the medical community views wireless applications as ineludible and necessary. However, currently there exist regulations on the use of wireless devices in hospitals, and with the ever increasing wireless personal applications, there will be more

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12

Chupáč, Michal. "Skener elektromagnetických polí a jeho využití při měření elektromagnetické kompatibility." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220301.

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Master’s thesis is focused on making the acquaintance of EMC issues and ways of electromagnetic field scanner RS321 utilization for pre-compliance measurements. First part contains analysis of available equipment’s influence on measurement results on the basis of gathered specification. Next part includes an example measurement used as operational manual for scanner and its controlling program. The most important part is correction evaluation for performed EMI measurement of signal generator using its EMC certification protocol and application of gained correction curve on independent EMI meas

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13

Stylemans, Eric. "Etude d'un système de contre-mesure électroacoustique anti sous-marin destiné à la protection des navires." Valenciennes, 1997. http://www.theses.fr/1997VALE0007.

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Pour perturber les traitements du sous-marin pendant la phase de filoguidage d'une torpille et permettre au bâtiment de surface la mise en place d'une tactique efficace de réaction, un nouveau type de contre-mesure dédiée au leurrage-brouillage spécifique des senseurs du lanceur, utilisée en complément des contre-mesures anti torpilles, est indispensable. La bande d'écoute des sous-marins et des bâtiments de surface étant en partie commune, la conception d'un leurre brouilleur dans cette bande pose un problème opérationnel car toute action visant le lanceur va également perturber le porteur da

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Nicholls, Christo. "Equivalence between in-house and conventional EM immunity test techniques." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2592.

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Thesis (MScEng (Electrical and Electronic Engineering))--Stellenbosch University, 2008.<br>Conventional immunity tests are both time consuming and costly. There is thus a reasonable interest in relatively quick, but accurate and cost effective, in-house pre-compliance test techniques within an engineering design-house. This thesis provides information on the equivalence between in-house and conventional immunity test techniques. Three techniques were evaluated, namely: 1. E-field radiation with a log periodic antenna (conventional test technique); 2 E-field radiation with an inhouse des

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15

Gavshin, Ruslan. "Elektromagnetická kompatibilita výzbrojí tramvajových vozidel." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442470.

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This diploma thesis deals with the issue of EMC of tram vehicles and traction system. The first chapter defines the issues that are then dealt with in the thesis. The next chapter lists the objectives of the work. Subsequent chapters analyze the issues described in chapter 2. In the last chapter, a flow chart is proposed, which should serve as a tool to estimate the hazards of the traction drive due to induced bearing currents.

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16

Ware, David A. "Effects of Intentional Electromagnetic Interference on Analog to Digital Converter Measurements of Sensor Outputs and General Purpose Input Output Pins." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6640.

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As technology becomes more prevalent, its application to safety and security in critical systems continues to increase. This leads to an increased dependence on sensors to provide an accurate view of the environment surrounding an application. These sensors can also be exploited by a malicious individual to attack a system and compromise its safety or security. These attacks change the reported value of a sensor so that it doesn't re ect the real situation. The systems in a car can be used as an example of this. Cars can have numerous sensors that measure a variety of things, including the car

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17

Friberg, Carol Diane. "Preliminary processing and evaluation of radar measurements in satellite-path propagation research." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45722.

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Rain and other precipitation cause attenuation and depolarization of high frequency satellite signals. Some characteristics of rain can be measured by dual-polarized radar. These characteristics can then be used to predict the effects of the rain on satellite-path propagation. This thesis describes briefly the theory of radar and satellite link measurements. Methods for calibrating the equipment and deriving actual experimental values from measured power are presented in detail. A set of computer programs to approximately predict radar and link values from measured rain rate are developed. Pr

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18

Geier, Martin. "Influência dos parâmetros envolvidos no processo de união por interferência de tubos por cravamento eletromagnético." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/96295.

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A união por conformação eletromagnética de perfis tubulares de alta condutividade elétrica é um processo inovador e limpo que pode substituir com sucesso os processos convencionais de união baseados na fixação mecânica por parafusos, rebites, soldagem e adesivos estruturais. Esta tecnologia funciona a temperatura ambiente, permite a união de materiais diferentes e oferece potencial para promover novas aplicações na montagem de estruturas leves. Neste trabalho busca-se compreender a união por interferência de tubos por cravamento eletromagnético em termos de seus principais parâmetros com o obj

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19

Deneš, Roman. "Měření elektromagnetického vyzařování v částečně a plně bezodrazových komorách." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221241.

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This thesis is focused on a detailed analysis of the mechanisms of electromagnetic wave propagation in anechoic chambers. The analysis takes into account the influence of the measurement distance, setup of anechoic chamber and other parameters. Furthermore, the work deals with a validation of both types of anechoic chambers and examines the impact of selected parameters on the measurement results. Based on the theoretical analysis and practical measurement, the comparation between semi and fully anechoic chamber, or a three and ten meter measuring distance was made. This thesis also contains a

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20

Lorenzo, Martinez Narei. "Observation of a Higgs boson and measurement of its mass in the diphoton decay channel with the ATLAS detector at the LHC." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00924105.

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The Standard Model of the particle physics predicts the existence of a massive scalar boson, usually referred to as Higgs boson in the literature, as resulting from the Spontaneous Symmetry Breaking mechanism, needed to generate the mass of the particles. The Higgs boson whose mass is theoretically undetermined, is experimentally looked for since half a century by various experiments. This is the case of the ATLAS experiment at LHC which started taking data from high energy collisions in 2010. One of the most important decay channel in the LHC environment is the diphoton channel, because the f

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21

Niska, Stefan. "Measurements and analysis of electromagnetic interferences in the Swedish railway systems /." Luleå : Division of Operation and Maintenance Luleå Railway Research Center, Luleå University of Technology, 2008. http://epubl.ltu.se/1402-1544/2008/76/.

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22

MacLeod, Leesa Marie. "Electromagnetic interference stress testing." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41465.pdf.

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23

Adamu, Tigist Atnafseged. "Electromagnetic Interference in Dwnhole Applications." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19394.

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SummaryElectromagnetic compatibility (EMC) and electromagnetic interference (EMI) are topics which have been of concern to electrical industry for many years. Excessive generation of electromagnetic noise and interference, resulting inadequate EMC, is one potential source of interaction and performance degradation which may reduce operational effectiveness of the devices. Because of this, EMC testing services and regulation imposed by governments have forced product designer to pay close attention electromagnetic interference level of their products.For improving oil and gas production recover

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24

Tassoudji, Mohammad Ali. "Electromagnetic interference in electronic circuits and systems." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35392.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.<br>Includes bibliographical references (p. 191-198).<br>by Mohammad Ali Tassoudji.<br>Ph.D.

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25

Maggs, John David. "Electromagnetic interference from variable speed motor drives." Thesis, Aston University, 1996. http://publications.aston.ac.uk/15347/.

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A methodology is presented which can be used to produce the level of electromagnetic interference, in the form of conducted and radiated emissions, from variable speed drives, the drive that was modelled being a Eurotherm 583 drive. The conducted emissions are predicted using an accurate circuit model of the drive and its associated equipment. The circuit model was constructed from a number of different areas, these being: the power electronics of the drive, the line impedance stabilising network used during the experimental work to measure the conducted emissions, a model of an induction moto

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26

Mohajer, Iravani Baharak. "Electromagnetic interference reduction using electromagnetic bandgap structures in packages, enclosures, cavities, and antennas." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7669.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Electrical and Computer Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Radojicic, Marko L. M. "Aspects of electromagnetic interference on printed circuit boards." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5873.

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General guidelines for the design of printed circuit boards have been developed for two important aspects of electromagnetic compatibility: cross-talk and radiated emissions. Numerical methods were used to study the cross-talk between tracks of several common printed circuit board technologies. Design recommendations are suggested that minimize the cross-talk on printed circuit boards. A simple model was developed to predict radiated emissions from complicated circuits on printed circuit boards. The concepts of ground impedance and common-mode currents were used to build a model which gives fa

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Ingram, Vernon D., and Stephen Jauregui. "Strategies in the topological approach to electromagnetic interference control." Thesis, Monterey, California: U.S. Naval Postgraduate School, 1987. http://hdl.handle.net/10945/22502.

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Wong, Kok Hoong. "Use of recycled carbon fibre for electromagnetic interference shielding." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439856.

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30

Oakes, Benjamin Donald. "Risk Analysis of Intentional Electromagnetic Interference on Critical Infrastructures." Licentiate thesis, KTH, Systemanalys och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-203788.

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Our modern society depends on the functioning and interplay of a wealth of infrastructures. Practicallyall of these infrastructures are in some form or another, dependent on electrical and electronicsystems. The majority of modern infrastructure is dependent on electric power and controlled bySupervisory Control and Data Acquisition (SCADA) systems. Electronic systems are sensitive toelectromagnetic interference and at the same time, sources of electromagnetic interference are becomingmore readily available on the market.This means that certain important electronic infrastructure could be expo

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Nicholls, Christo. "Equivalence between in-house and conventional EM immunity test techniques /." Link to the online version, 2007. http://hdl.handle.net/10019/885.

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32

Golestaneh, Shahram Carleton University Dissertation Engineering Electrical. "Adjacent channel interference reduction by adaptive equalizers." Ottawa, 1992.

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33

Ren, Fei. "Performance improvements of automobile communication protocols in electromagnetic interference environments." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/Ren_09007dcc80487aed.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed March 27, 2008) Includes bibliographical references (p. 55-56).

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Theodore, Susan Mack 1958. "Reduction of electromagnetic interference in multiple switched mode power supplies." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/278520.

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A method to reduce Electromagnetic Interference (EMI) of multiple switching waveforms by harmonic cancellation is presented. The waveforms considered are input currents generated by 'n' Discontinuous Mode (DCM) Flyback Switched Mode Power Supplies (SMPS) that share a common source. The waveforms are modeled as ideal triangular waveforms and a Fourier analysis is performed to determine the phase relationship, θ, that minimizes the EMI. The combined EMI is minimum when θ=360°/n and maximum when θ=0°. A system of two DCM Flyback SMPS is designed in such a way that both 0° and 180° phase shifts be

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Adams, Peter. "Fault demarcation and electromagnetic interference identification for broadband DSL access." Thesis, Queen Mary, University of London, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538377.

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Grodek, Thomas Leopold. "Practical considerations of the topological approach to electromagnetic interference control." Thesis, Monterey, California: U.S. Naval Postgraduate School, 1986. http://hdl.handle.net/10945/22039.

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Li, Hong. "Reducing electromagnetic interference in DC-DC converters with chaos control." Düsseldorf VDI-Verl, 2009. http://d-nb.info/998470414/04.

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Chang, I.-Jen, and 張怡仁. "Time-Domain Electromagnetic Interference Measurement for Radiated Emission." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/77703316286096348407.

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碩士<br>輔仁大學<br>電子工程學系<br>97<br>This article discussed and used a digital oscilloscope to do the measuring technology in the time domain while matching the auxiliary operation of the computer mainly. The measured frequency is from 30 MHz to 250 MHz. The antenna received the electromagnetic interference noise in radiated emission from EUT so the signals from the antenna are sampled. The amplifier amplified the signals, and the low pass filter filtered the signals in frequency range. Then the digital oscilloscope converted the analog signals to digital ones, and transmitted the signals to the comp

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Willcock, Peter Richard. "Conducted electromagnetic interference in boost converters." Thesis, 2012. http://hdl.handle.net/10210/6460.

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M.Ing.<br>The use of electronically controlled electrical power equipment, specifically power converters, has rapidly increased in recent years. It has subsequently been found that different electrical equipment, placed or working in close proximity, can negatively influences each other's performance. The degradation in performance could be attributed to mutual electromagnetic interference (EMI). Traditional methods of testing conducted EMI usually follow a black box approach with additional filter elements being added to the converter input to bring it within specification. This study focuses

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Wang, Yao-hsien, and 王耀賢. "Measurement and Countermeasure of Electromagnetic Interference for Electronic Ballast." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/62540190088628736057.

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碩士<br>逢甲大學<br>資訊電機工程碩士在職專班<br>94<br>The lighting is a basic human necessity, influencing economic development and consequent goals for the promotion of an increased quality of life. However in striving for our goals we have a problem of fulfilling increasing output lighting demand in a frugal power consumption world. To resolve this dilemma we have to ‘do more with less’ creating innovative energy systems and product designs of higher efficiencies that not only save energy but more importantly the environment itself for future generations. With electromagnetic interference (EMI) being recogni

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Lin, Hui-Ching, and 林惠卿. "Electromagnetic Interference Emission Automatic Measurement and Filter Design System." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/18801199309091931738.

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碩士<br>淡江大學<br>資訊工程學系<br>90<br>With the fast development of power electronic techniques, the switch-mode power supplies have been widely employed in the electrical products for industrial and commercial applications. These high-frequency switching power supplies are inherently noise sources and can affect the operation of the other equipments. Therefore, it is very important to investigate and study the electromagnetic interference problems. In this thesis, a PC-based automatic measurement and filter design system for the electromagnetic interference emission is developed. The eff

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Chang, Hong Yang, and 張宏揚. "Measurement and Analysis of Electromagnetic Interference on High Frequency Circuits." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/32522521356993008860.

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碩士<br>義守大學<br>電子工程學系<br>88<br>The rise time of signals in PCB (printed circuit board) circuits become shorter and shorter. High speed transmission and high density packaging have become the trend of PCB development. Therefore, when designing a PCB circuit, the electrical characteristics under high frequency circumstance and noise-control can not be ignored. One of the most common noise sources in digital systems is the crosstalk noise, and the crosstalk noise is very significant within high frequency PCB circuits. Thus, in this thesis, a PCB circuit is simulated by a corresponding c

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Chang, Yin-Cheng, and 章殷誠. "Wideband Conducted Electromagnetic Interference and Susceptibility Measurement Techniques for ICs." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/zc2ubt.

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博士<br>國立清華大學<br>電子工程研究所<br>107<br>This work focuses on the wideband measurement technique development of the conducted electromagnetic compatibility (EMC) for IC, and presents the chip level design strategies. For the electromagnetic interference (EMI) test, a 1-Ω probe is presented to comply with the IEC61967-4 standard. The insertion loss specification of 34±2 dB is achieved within 1 GHz bandwidth. To meet the demand of high speed/high frequency testing, the on-chip test setup is proposed. By implementing the 1-Ω current probe and 150-Ω voltage probe in the integrated passive device (IPD) te

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jong-mou, fang, and 方仲謀. "The Experiments and Analysis for Measurement Uncertainty of a Radiated Electromagnetic Interference." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/89797082866791093499.

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碩士<br>元智大學<br>電機工程研究所<br>89<br>This thesis analyzes the uncertainty of a radiated electromagnetic interference test based on the ISO Guide. The major sources of uncertainty in the radiated electromagnetic interference test which include EMI receiver, measurement cable, load impedance mismatch and antenna factor, are measured at 27 sampled frequencies in range of 30MHz to 1000 MHz, According to the regulation of ANSI-C63.4. The mean and variance of measured data are used to calibrate the loss of a radiated electromagnetic interference test and to calculate uncertainty. Finally, the relation bet

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Engelbrecht, Jacobus Johannes. "Methods to measure and limit electromagnetic interference, with reference to power systems and satellite earth stations." Thesis, 2009. http://hdl.handle.net/10210/2163.

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M.Ing.<br>This thesis investigates why electromagnetic interference (EMI) and electromagnetic compatibility (EMC) problems exist and how EMI is generated, measured and limited. This investigation is done with reference to power systems and satellite earth stations. To understand the full extend of EMI generation from power systems on satellite earth stations, it was necessary to do a study of EMI, in order to understand EMI in its simplest form. This study consists of the following work: •A background study investigates the components of EMI, how EMI are generated and manifest in electric syst

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Yu, Ku Jen, and 顧仁裕. "The Study of Measurement Theorem and Prevention over Electromagnetic Interference Environment and RF Noise." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/03977085969863272777.

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碩士<br>大葉大學<br>電信工程學系碩士在職專班<br>93<br>In this thesis, the theory of EMI/REI and the propagation methods are investigated and introduced at the beginning. Moreover, the solution for internal and external interference sources with the difference conditions of a communication system include the location, the environments and the equipments of a communication system are discussed. Besides, the thesis not only study the processes and the device for measuring the interference of a communication system, the choose of the location of a communication system is also analyzed by some physical measured data

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MING-HUNG, SUN, and 孫銘宏. "Electromagnetic Interference Emission Automatic Measurement and Filter Design for Switch-mode Rectifier Power Supply." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/75909083617749637320.

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碩士<br>義守大學<br>電子工程學系<br>91<br>In this thesis, a PC-based automatic measurement and filter design system for the electromagnetic interference emission of SMR is developed. The man-machine interface is written in LabVIEW graphical programming language. The effort of solving the conductive EMI is greatly reduced by the fast computing speed and the friendly man-machine interface of the PC. The emission measurement and suppression procedure established can accomplish the reduction of the developing period and cost. Not only the production is speeded up, but also the acceptability of the SMR manufac

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陳嘉珮. "The Measurement and Rectification of Electromagnetic Interference for Electric Massage - Neck and Shoulder Massage." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/44460337100438660566.

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碩士<br>國立彰化師範大學<br>機電工程學系<br>99<br>Busy is a common phenomenon for the people in modern industrialized society. Due to working stress and bad gesture, most people usually have the problem of body pain, for example, sore and stiff neck and shoulder. In order to relief the pain, electric massagers have been used widely. Shoulder and neck massager is the one that has to be contacted on human skin during working; the electromagnetic problem then becomes an essential issue that has to be measured and tested. Therefore, the objective of this study is dealing with the electromagnetic interference whic

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Chiu, Shih-ting, and 邱士庭. "Statistical model building and inference about the normalized site attenuation (NSA) measurements for electromagnetic interference (EMI)." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/92145950830616450567.

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碩士<br>國立中山大學<br>應用數學系研究所<br>92<br>Open site measurement on the electromagnetic interference is the most direct and universally accepted standard approach for measuring radiated emissions from an equipment or the radiation susceptibility of a component or equipment. A site is qualified for testing EMI or not is decided by the antenna measurements. In this work, we use data from setups with di erent factors to find relations of measurement and the situation of antenna. A one change point model has been used to fit observed measurements and compare the di erences with two kinds of antenna (broadb

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Cheng, Chiung-Ping, and 鄭竣平. "A Study on the Statistical Models of Normalized Site Attenuation(NSA) Measurements for Electromagnetic Interference(EMI)." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/02709755224267764104.

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碩士<br>國立中山大學<br>應用數學系研究所<br>91<br>In this work, we discuss the accuracy of measurements for electromagnetic. The two kinds of antenna we use are Dipole antenna and Broadband antenna. In general, if the antenna measurements we recorded at different frequencies do not exceed the ideal value $pm 4$dB, we would regard this site as a normalized site, otherwise it is not a normalized site(just a measurement exceeds the range). Traditionally, all we use is Dipole antenna, but due to difficulty of operation and inaccuracy of Dipole antenna, we investigate by statistical methods if we may use the Broad

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