Production of stroboscopic photographs without the use of a stroboscopic lamp

Detalhes bibliográficos
Autor(a) principal: Dias, Marco Adriano
Data de Publicação: 2009
Outros Autores: Amorim, Helio Salim de, Barros, Susana de Sousa
Tipo de documento: Artigo
Idioma: por
Título da fonte: Caderno Brasileiro de Ensino de Física (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2009v26n3p492
Resumo: Most High School Physics programs begin with the study ofmotion. In order to understand the basic concepts it is necessary toquantify phenomena, which is not trivial, so, seldom used in theschool classroom. Within the techniques that allow the necessaryprecise time measurements, the stroboscopic photography hasbeen a good solution, in spite of the requirement of equipment suchas a special lamp and the use of analogical photographyor, alternatively, of a Polaroid camera that gives immediate results.A possible answer is to produce stroboscopic digital picturesof motions, using two accessories at the disposal of mostteachers and at very low cost: a digital camera, to produce a videoof the phenomenon in study and a PC Computer together with afree software, VirtualDub and ImageJ to produce the stroboscopicpicture. The data for analysis may be obtained in analogicalor digital format, show good quality, as seen in the examplespresented.
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spelling Production of stroboscopic photographs without the use of a stroboscopic lampProdução de fotografias estroboscópicas sem lâmpada estroboscópicaMost High School Physics programs begin with the study ofmotion. In order to understand the basic concepts it is necessary toquantify phenomena, which is not trivial, so, seldom used in theschool classroom. Within the techniques that allow the necessaryprecise time measurements, the stroboscopic photography hasbeen a good solution, in spite of the requirement of equipment suchas a special lamp and the use of analogical photographyor, alternatively, of a Polaroid camera that gives immediate results.A possible answer is to produce stroboscopic digital picturesof motions, using two accessories at the disposal of mostteachers and at very low cost: a digital camera, to produce a videoof the phenomenon in study and a PC Computer together with afree software, VirtualDub and ImageJ to produce the stroboscopicpicture. The data for analysis may be obtained in analogicalor digital format, show good quality, as seen in the examplespresented.A maioria dos alunos do Ensino Médio tem na cinemática o primeiro contato com a Física. Para sua compreensão, é necessária a quantificação conceitual, o que não é trivial, e por isso dificilmente executada em sala de aula. Dentre as possíveis técnicas que permitem fazer medidas precisas, a fotografia estroboscópica tem sido uma solução utilizada em que pese às dificuldades com a aplicação da técnica. Para circundar esses problemas, é apresentada uma solução para a obtenção de fotografias estroboscópicas digitais de qualquer movimento, baseada em dois acessórios atualmente bem difundidos e de baixo custo: a câmara fotográfica digital com recurso para vídeos curtos, de uso amador, e um computador do tipo PC com softwares de acesso gratuito, basicamente o VirtualDub e o ImageJ. A leitura dos dados, que pode ser feita de forma analógica ou digital, fornece excelentes resultados, como mostrado nos exemplos apresentados.Imprensa Universitária - UFSC2009-11-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2009v26n3p49210.5007/2175-7941.2009v26n3p492Caderno Brasileiro de Ensino de Física; v. 26 n. 3 (2009); 492-5132175-79411677-2334reponame:Caderno Brasileiro de Ensino de Física (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2009v26n3p492/12750Dias, Marco AdrianoAmorim, Helio Salim deBarros, Susana de Sousainfo:eu-repo/semantics/openAccess2018-03-14T10:06:26Zoai:periodicos.ufsc.br:article/11882Revistahttp://www.periodicos.ufsc.br/index.php/fisicaPUBhttps://periodicos.ufsc.br/index.php/fisica/oaicbefisica@gmail.com||fscccef@fsc.ufsc.br|| cbefisica@gmail.com2175-79411677-2334opendoar:2018-03-14T10:06:26Caderno Brasileiro de Ensino de Física (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv Production of stroboscopic photographs without the use of a stroboscopic lamp
Produção de fotografias estroboscópicas sem lâmpada estroboscópica
title Production of stroboscopic photographs without the use of a stroboscopic lamp
spellingShingle Production of stroboscopic photographs without the use of a stroboscopic lamp
Dias, Marco Adriano
title_short Production of stroboscopic photographs without the use of a stroboscopic lamp
title_full Production of stroboscopic photographs without the use of a stroboscopic lamp
title_fullStr Production of stroboscopic photographs without the use of a stroboscopic lamp
title_full_unstemmed Production of stroboscopic photographs without the use of a stroboscopic lamp
title_sort Production of stroboscopic photographs without the use of a stroboscopic lamp
author Dias, Marco Adriano
author_facet Dias, Marco Adriano
Amorim, Helio Salim de
Barros, Susana de Sousa
author_role author
author2 Amorim, Helio Salim de
Barros, Susana de Sousa
author2_role author
author
dc.contributor.author.fl_str_mv Dias, Marco Adriano
Amorim, Helio Salim de
Barros, Susana de Sousa
description Most High School Physics programs begin with the study ofmotion. In order to understand the basic concepts it is necessary toquantify phenomena, which is not trivial, so, seldom used in theschool classroom. Within the techniques that allow the necessaryprecise time measurements, the stroboscopic photography hasbeen a good solution, in spite of the requirement of equipment suchas a special lamp and the use of analogical photographyor, alternatively, of a Polaroid camera that gives immediate results.A possible answer is to produce stroboscopic digital picturesof motions, using two accessories at the disposal of mostteachers and at very low cost: a digital camera, to produce a videoof the phenomenon in study and a PC Computer together with afree software, VirtualDub and ImageJ to produce the stroboscopicpicture. The data for analysis may be obtained in analogicalor digital format, show good quality, as seen in the examplespresented.
publishDate 2009
dc.date.none.fl_str_mv 2009-11-10
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2009v26n3p492
10.5007/2175-7941.2009v26n3p492
url https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2009v26n3p492
identifier_str_mv 10.5007/2175-7941.2009v26n3p492
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2009v26n3p492/12750
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Imprensa Universitária - UFSC
publisher.none.fl_str_mv Imprensa Universitária - UFSC
dc.source.none.fl_str_mv Caderno Brasileiro de Ensino de Física; v. 26 n. 3 (2009); 492-513
2175-7941
1677-2334
reponame:Caderno Brasileiro de Ensino de Física (Online)
instname:Universidade Federal de Santa Catarina (UFSC)
instacron:UFSC
instname_str Universidade Federal de Santa Catarina (UFSC)
instacron_str UFSC
institution UFSC
reponame_str Caderno Brasileiro de Ensino de Física (Online)
collection Caderno Brasileiro de Ensino de Física (Online)
repository.name.fl_str_mv Caderno Brasileiro de Ensino de Física (Online) - Universidade Federal de Santa Catarina (UFSC)
repository.mail.fl_str_mv cbefisica@gmail.com||fscccef@fsc.ufsc.br|| cbefisica@gmail.com
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