Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da INATEL |
Texto Completo: | http://tede.inatel.br:8080/tede/handle/tede/136 |
Resumo: | Electromagnetic compatibility (EMC) is the capability of an electrical device or system to operate in its electromagnetic environment, without disturbing or being disturbed by it. The aim of this thesis is to study the electromagnetic susceptibility, and electromagnetic interference experiments, developing software to measure the radiation and conducted emission. A predominant factor for the development programs in measurements of radiated and conducted emission relates with sweep time, applying quasi peak and average detectors for the signal measured through the spectrum analyzer. That equipment was available and used as a reference one. Domestic and international standards show the values and frequency range for the experiment, determined with the detectors, specified for each case. As the level with the peak detector is always greater or equal to the obtained with quasi peak and average detectors, there is a possibility to make experiment. It takes place by using the peak detector, whose sweep time is less than the other type. A developed program using LabViewTM compares the measurements among the specified limit. If exceeding, this value would perform the measurement only for those frequencies. For the conducted emission, it is determined the disturbances at the power supply wires, with the line impedance stabilization network (LISN) connected to the spectrum analyzer. The radiation emissions are performed with the equipment under test inside the anechoic chamber, in a known distance from the antenna. The electric field intensity is determined from antenna data sheet that includes the gain and antenna factor, it must be calibrated. These data are used by programs to convert the measurement level to electric field intensity. |
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Ribeiro, Jos? Ant?nio Justino012.620.256-72http://lattes.cnpq.br/9987344139958522Ribeiro, Jos? Ant?nio Justino012.620.256-72http://lattes.cnpq.br/9987344139958522Guimar?es, Dayan Adionel739.337.836-15http://lattes.cnpq.br/2503439503631682Portelinha, Francisco Martinshttp://lattes.cnpq.br/2508953043452613725.266.616-68http://lattes.cnpq.br/1189415245115458Magalh?es, Gilberto Vilas Boas2017-03-27T17:13:56Z2008-03-13Magalh?es, Gilberto Vilas Boas. Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas. 2008. [105]. disserta??o( Mestrado em Engenharia de Telecomunica??es) - Instituto Nacional de Telecomunica??es, [Santa Rita do Sapuca?] .http://tede.inatel.br:8080/tede/handle/tede/136Electromagnetic compatibility (EMC) is the capability of an electrical device or system to operate in its electromagnetic environment, without disturbing or being disturbed by it. The aim of this thesis is to study the electromagnetic susceptibility, and electromagnetic interference experiments, developing software to measure the radiation and conducted emission. A predominant factor for the development programs in measurements of radiated and conducted emission relates with sweep time, applying quasi peak and average detectors for the signal measured through the spectrum analyzer. That equipment was available and used as a reference one. Domestic and international standards show the values and frequency range for the experiment, determined with the detectors, specified for each case. As the level with the peak detector is always greater or equal to the obtained with quasi peak and average detectors, there is a possibility to make experiment. It takes place by using the peak detector, whose sweep time is less than the other type. A developed program using LabViewTM compares the measurements among the specified limit. If exceeding, this value would perform the measurement only for those frequencies. For the conducted emission, it is determined the disturbances at the power supply wires, with the line impedance stabilization network (LISN) connected to the spectrum analyzer. The radiation emissions are performed with the equipment under test inside the anechoic chamber, in a known distance from the antenna. The electric field intensity is determined from antenna data sheet that includes the gain and antenna factor, it must be calibrated. These data are used by programs to convert the measurement level to electric field intensity.A compatibilidade eletromagn?tica (EMC) ? a capacidade de um dispositivo el?trico ou um sistema de operar em seu ambiente eletromagn?tico sem provocar dist?rbio ou ser perturbado. O objetivo deste trabalho ? estudar dos ensaios de susceptibilidade eletromagn?tico e interfer?ncia eletromagn?tica desenvolvendo programas para as medidas de emiss?o irradiada e conduzida. Um fator predominante em medi??es de emiss?o irradiada e conduzida relacionase ao tempo de varredura, com emprego de detectores de quase pico e de n?vel m?dio para o sinal a ser usado no analisador de espectros. Utilizou-se como refer?ncia o equipamento dispon?vel no laborat?rio de medi??es. Normas nacionais e internacionais estabelecem os valores e faixas de freq??ncia para os ensaios, determinados com emprego de detectores espec?ficos para cada caso. Como a amplitude medida com o detector de pico ? sempre maior ou igual ? obtida com detectores de quase pico e de n?vel m?dio, existe possibilidade de realiza??o dos ensaios. Efetua-se a varredura com detector de pico, que exige um tempo muito menor do que dos outros detectores. Um programa desenvolvido com o LabViewTM compara as medidas com os limites estabelecidos por normas. Caso sejam ultrapassados, realizam-se medi??es para as freq??ncias em que o fato ocorrer. Para a emiss?o conduzida, determinam-se as perturba??es nos terminais de energia el?trica, empregando- se uma rede de estabiliza??o de imped?ncia (LISN) como interface com o analisador de espectros. Os ensaios de emiss?o irradiada s?o realizados com o equipamento sob an?lise (EUT) no interior de uma c?mara anec?ica, a uma dist?ncia conhecida da antena. Para se determinar a intensidade de campo el?trico, a antena deve estar calibrada. Isto ? verificado a partir das especifica??es de diversas caracter?sticas, como o ganho, o comprimento efetivo e o fator da antena. Desses valores, o programa efetua a convers?o da tens?o medida para a intensidade de campo el?trico.Submitted by Tede Dspace (tede@inatel.br) on 2017-03-27T17:13:56Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) diss. Gilberto.pdf: 1412172 bytes, checksum: ebd309c72c6cd6aa82c2c2603d4b333b (MD5)Made available in DSpace on 2017-03-27T17:13:56Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) diss. Gilberto.pdf: 1412172 bytes, checksum: ebd309c72c6cd6aa82c2c2603d4b333b (MD5) Previous issue date: 2008-03-13application/pdfhttp://tede.inatel.br:8080/jspui/retrieve/1157/diss.%20Gilberto.pdf.jpgporInstituto Nacional de Telecomunica??esMestrado em Engenharia de Telecomunica??esINATELBrasilInstituto Nacional de Telecomunica??eshttp://creativecommons.org/licenses/by-nd/4.0/info:eu-repo/semantics/openAccessAutoma??o de medidas; interfer?ncia eletromagn?tica.Engenharia - Telecomunica??esImplementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisreponame:Biblioteca Digital de Teses e Dissertações da INATELinstname:Instituto Nacional de Telecomunicações (INATEL)instacron:INATELLICENSElicense.txtlicense.txttext/plain; charset=utf-8112http://localhost:8080/tede/bitstream/tede/136/1/license.txtc6279291b293f0db82678eaa73a27769MD51CC-LICENSElicense_urllicense_urltext/plain; charset=utf-846http://localhost:8080/tede/bitstream/tede/136/2/license_url587cd8ffae15c8598ed3c46d248a3f38MD52license_textlicense_texttext/html; charset=utf-80http://localhost:8080/tede/bitstream/tede/136/3/license_textd41d8cd98f00b204e9800998ecf8427eMD53license_rdflicense_rdfapplication/rdf+xml; charset=utf-80http://localhost:8080/tede/bitstream/tede/136/4/license_rdfd41d8cd98f00b204e9800998ecf8427eMD54ORIGINALdiss. 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dc.title.por.fl_str_mv |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas |
title |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas |
spellingShingle |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas Magalh?es, Gilberto Vilas Boas Automa??o de medidas; interfer?ncia eletromagn?tica. Engenharia - Telecomunica??es |
title_short |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas |
title_full |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas |
title_fullStr |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas |
title_full_unstemmed |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas |
title_sort |
Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas |
author |
Magalh?es, Gilberto Vilas Boas |
author_facet |
Magalh?es, Gilberto Vilas Boas |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Ribeiro, Jos? Ant?nio Justino |
dc.contributor.advisor1ID.fl_str_mv |
012.620.256-72 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9987344139958522 |
dc.contributor.referee1.fl_str_mv |
Ribeiro, Jos? Ant?nio Justino |
dc.contributor.referee1ID.fl_str_mv |
012.620.256-72 |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/9987344139958522 |
dc.contributor.referee2.fl_str_mv |
Guimar?es, Dayan Adionel |
dc.contributor.referee2ID.fl_str_mv |
739.337.836-15 |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/2503439503631682 |
dc.contributor.referee3.fl_str_mv |
Portelinha, Francisco Martins |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/2508953043452613 |
dc.contributor.authorID.fl_str_mv |
725.266.616-68 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1189415245115458 |
dc.contributor.author.fl_str_mv |
Magalh?es, Gilberto Vilas Boas |
contributor_str_mv |
Ribeiro, Jos? Ant?nio Justino Ribeiro, Jos? Ant?nio Justino Guimar?es, Dayan Adionel Portelinha, Francisco Martins |
dc.subject.por.fl_str_mv |
Automa??o de medidas; interfer?ncia eletromagn?tica. |
topic |
Automa??o de medidas; interfer?ncia eletromagn?tica. Engenharia - Telecomunica??es |
dc.subject.cnpq.fl_str_mv |
Engenharia - Telecomunica??es |
description |
Electromagnetic compatibility (EMC) is the capability of an electrical device or system to operate in its electromagnetic environment, without disturbing or being disturbed by it. The aim of this thesis is to study the electromagnetic susceptibility, and electromagnetic interference experiments, developing software to measure the radiation and conducted emission. A predominant factor for the development programs in measurements of radiated and conducted emission relates with sweep time, applying quasi peak and average detectors for the signal measured through the spectrum analyzer. That equipment was available and used as a reference one. Domestic and international standards show the values and frequency range for the experiment, determined with the detectors, specified for each case. As the level with the peak detector is always greater or equal to the obtained with quasi peak and average detectors, there is a possibility to make experiment. It takes place by using the peak detector, whose sweep time is less than the other type. A developed program using LabViewTM compares the measurements among the specified limit. If exceeding, this value would perform the measurement only for those frequencies. For the conducted emission, it is determined the disturbances at the power supply wires, with the line impedance stabilization network (LISN) connected to the spectrum analyzer. The radiation emissions are performed with the equipment under test inside the anechoic chamber, in a known distance from the antenna. The electric field intensity is determined from antenna data sheet that includes the gain and antenna factor, it must be calibrated. These data are used by programs to convert the measurement level to electric field intensity. |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008-03-13 |
dc.date.accessioned.fl_str_mv |
2017-03-27T17:13:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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dc.identifier.citation.fl_str_mv |
Magalh?es, Gilberto Vilas Boas. Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas. 2008. [105]. disserta??o( Mestrado em Engenharia de Telecomunica??es) - Instituto Nacional de Telecomunica??es, [Santa Rita do Sapuca?] . |
dc.identifier.uri.fl_str_mv |
http://tede.inatel.br:8080/tede/handle/tede/136 |
identifier_str_mv |
Magalh?es, Gilberto Vilas Boas. Implementa??o de medi??es automatizadas de interfer?ncias eletromagn?ticas. 2008. [105]. disserta??o( Mestrado em Engenharia de Telecomunica??es) - Instituto Nacional de Telecomunica??es, [Santa Rita do Sapuca?] . |
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Instituto Nacional de Telecomunica??es |
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