Construction of a didactic system for wave propagation speed determination in liquids
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
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=S1806-11172020000100630 |
Resumo: | Abstract This work shows the construction, calibration and validation of a system to determine sound speed in liquids. We used the pulse method for the measurements. Piezoelectric transducers are used to transmit and receive acoustic wave pulses. The pulse travel time is determined by a counter implemented in a logic programmable device (FPGA). Initially the system is calibrated using pure water. We performed measurements in NaCl and CuSO4 solutions at different concentrations. The system detected speed variations of approximately 1.0 m/s in relation to the concentrations. Therefore, from didactical point of view, it is possible to perform experiments where small changes in the impurities concentration can be detected and measured. Further, the construction or even the enhancement of the system may be stimulant to students devoted to electronic instrumentation. |
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Construction of a didactic system for wave propagation speed determination in liquidsSoundElectronicsFPGAAbstract This work shows the construction, calibration and validation of a system to determine sound speed in liquids. We used the pulse method for the measurements. Piezoelectric transducers are used to transmit and receive acoustic wave pulses. The pulse travel time is determined by a counter implemented in a logic programmable device (FPGA). Initially the system is calibrated using pure water. We performed measurements in NaCl and CuSO4 solutions at different concentrations. The system detected speed variations of approximately 1.0 m/s in relation to the concentrations. Therefore, from didactical point of view, it is possible to perform experiments where small changes in the impurities concentration can be detected and measured. Further, the construction or even the enhancement of the system may be stimulant to students devoted to electronic instrumentation.Sociedade Brasileira de Física2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100630Revista Brasileira de Ensino de Física v.42 2020reponame:Revista Brasileira de Ensino de Física (Online)instname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/1806-9126-rbef-2020-0239info:eu-repo/semantics/openAccessArnold,Francisco J.Oliveira,João L. S. P. deSilva,Alexandre P.Dragoni Sobrinho,GeraldoRunge,Cristhof J. R.Pires,Marta S. G.eng2020-09-21T00:00:00Zoai:scielo:S1806-11172020000100630Revistahttp://www.sbfisica.org.br/rbef/https://old.scielo.br/oai/scielo-oai.php||marcio@sbfisica.org.br1806-91261806-1117opendoar:2020-09-21T00:00Revista Brasileira de Ensino de Física (Online) - Sociedade Brasileira de Física (SBF)false |
dc.title.none.fl_str_mv |
Construction of a didactic system for wave propagation speed determination in liquids |
title |
Construction of a didactic system for wave propagation speed determination in liquids |
spellingShingle |
Construction of a didactic system for wave propagation speed determination in liquids Arnold,Francisco J. Sound Electronics FPGA |
title_short |
Construction of a didactic system for wave propagation speed determination in liquids |
title_full |
Construction of a didactic system for wave propagation speed determination in liquids |
title_fullStr |
Construction of a didactic system for wave propagation speed determination in liquids |
title_full_unstemmed |
Construction of a didactic system for wave propagation speed determination in liquids |
title_sort |
Construction of a didactic system for wave propagation speed determination in liquids |
author |
Arnold,Francisco J. |
author_facet |
Arnold,Francisco J. Oliveira,João L. S. P. de Silva,Alexandre P. Dragoni Sobrinho,Geraldo Runge,Cristhof J. R. Pires,Marta S. G. |
author_role |
author |
author2 |
Oliveira,João L. S. P. de Silva,Alexandre P. Dragoni Sobrinho,Geraldo Runge,Cristhof J. R. Pires,Marta S. G. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Arnold,Francisco J. Oliveira,João L. S. P. de Silva,Alexandre P. Dragoni Sobrinho,Geraldo Runge,Cristhof J. R. Pires,Marta S. G. |
dc.subject.por.fl_str_mv |
Sound Electronics FPGA |
topic |
Sound Electronics FPGA |
description |
Abstract This work shows the construction, calibration and validation of a system to determine sound speed in liquids. We used the pulse method for the measurements. Piezoelectric transducers are used to transmit and receive acoustic wave pulses. The pulse travel time is determined by a counter implemented in a logic programmable device (FPGA). Initially the system is calibrated using pure water. We performed measurements in NaCl and CuSO4 solutions at different concentrations. The system detected speed variations of approximately 1.0 m/s in relation to the concentrations. Therefore, from didactical point of view, it is possible to perform experiments where small changes in the impurities concentration can be detected and measured. Further, the construction or even the enhancement of the system may be stimulant to students devoted to electronic instrumentation. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S1806-11172020000100630 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100630 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1806-9126-rbef-2020-0239 |
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.42 2020 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 |
_version_ |
1752122425139527680 |