Construction and measurement of an electromagnetic noise generator based on an automotive coil

Detalhes bibliográficos
Autor(a) principal: Perotoni,Marcelo Bender
Data de Publicação: 2017
Outros Autores: Silva,Samuel Nunes Nascimento
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ensino de Física (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172017000400411
Resumo: This article covers the design of an electromagnetic noise generator which uses an automotive coil as the main component. A short theoretical analysis covers the generation of high voltage pulsed current from the available DC source originated from the battery. An electronic dimmer, a circuit used to control the brightness of a light, by controlling the effective voltage that is delivered to the load, is used here to provide more degrees of freedom to the generated power as well as to insert higher order harmonics into the emitted electromagnetic spectrum. A prototype was built and its time domain current waveform is measured and shown, altogether with the measured radiated spectra, covering the frequency range from 20Hz to 1GHz. A broadband emission characteristics is verified, turning the use of common AM/FM radios impossible when close to the noise generator. A visible strong plasma is also seen due to the high generated voltages (around 60kV).
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spelling Construction and measurement of an electromagnetic noise generator based on an automotive coilApplied ElectromagnetismElectromagnetic CompatibilityThis article covers the design of an electromagnetic noise generator which uses an automotive coil as the main component. A short theoretical analysis covers the generation of high voltage pulsed current from the available DC source originated from the battery. An electronic dimmer, a circuit used to control the brightness of a light, by controlling the effective voltage that is delivered to the load, is used here to provide more degrees of freedom to the generated power as well as to insert higher order harmonics into the emitted electromagnetic spectrum. A prototype was built and its time domain current waveform is measured and shown, altogether with the measured radiated spectra, covering the frequency range from 20Hz to 1GHz. A broadband emission characteristics is verified, turning the use of common AM/FM radios impossible when close to the noise generator. A visible strong plasma is also seen due to the high generated voltages (around 60kV).Sociedade Brasileira de Física2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172017000400411Revista Brasileira de Ensino de Física v.39 n.4 2017reponame:Revista Brasileira de Ensino de Física (Online)instname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/1806-9126-rbef-2017-0105info:eu-repo/semantics/openAccessPerotoni,Marcelo BenderSilva,Samuel Nunes Nascimentoeng2017-09-29T00:00:00Zoai:scielo:S1806-11172017000400411Revistahttp://www.sbfisica.org.br/rbef/https://old.scielo.br/oai/scielo-oai.php||marcio@sbfisica.org.br1806-91261806-1117opendoar:2017-09-29T00:00Revista Brasileira de Ensino de Física (Online) - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Construction and measurement of an electromagnetic noise generator based on an automotive coil
title Construction and measurement of an electromagnetic noise generator based on an automotive coil
spellingShingle Construction and measurement of an electromagnetic noise generator based on an automotive coil
Perotoni,Marcelo Bender
Applied Electromagnetism
Electromagnetic Compatibility
title_short Construction and measurement of an electromagnetic noise generator based on an automotive coil
title_full Construction and measurement of an electromagnetic noise generator based on an automotive coil
title_fullStr Construction and measurement of an electromagnetic noise generator based on an automotive coil
title_full_unstemmed Construction and measurement of an electromagnetic noise generator based on an automotive coil
title_sort Construction and measurement of an electromagnetic noise generator based on an automotive coil
author Perotoni,Marcelo Bender
author_facet Perotoni,Marcelo Bender
Silva,Samuel Nunes Nascimento
author_role author
author2 Silva,Samuel Nunes Nascimento
author2_role author
dc.contributor.author.fl_str_mv Perotoni,Marcelo Bender
Silva,Samuel Nunes Nascimento
dc.subject.por.fl_str_mv Applied Electromagnetism
Electromagnetic Compatibility
topic Applied Electromagnetism
Electromagnetic Compatibility
description This article covers the design of an electromagnetic noise generator which uses an automotive coil as the main component. A short theoretical analysis covers the generation of high voltage pulsed current from the available DC source originated from the battery. An electronic dimmer, a circuit used to control the brightness of a light, by controlling the effective voltage that is delivered to the load, is used here to provide more degrees of freedom to the generated power as well as to insert higher order harmonics into the emitted electromagnetic spectrum. A prototype was built and its time domain current waveform is measured and shown, altogether with the measured radiated spectra, covering the frequency range from 20Hz to 1GHz. A broadband emission characteristics is verified, turning the use of common AM/FM radios impossible when close to the noise generator. A visible strong plasma is also seen due to the high generated voltages (around 60kV).
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172017000400411
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172017000400411
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1806-9126-rbef-2017-0105
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Revista Brasileira de Ensino de Física v.39 n.4 2017
reponame:Revista Brasileira de Ensino de Física (Online)
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Revista Brasileira de Ensino de Física (Online)
collection Revista Brasileira de Ensino de Física (Online)
repository.name.fl_str_mv Revista Brasileira de Ensino de Física (Online) - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv ||marcio@sbfisica.org.br
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