Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry
<abstract language="eng">The electrochemical properties of micro and nano-electrodes are widely investigated due to their low faradaic and capacitive currents, leading to a new generation of smart and implantable devices. However, the current signals obtained in low-dimensional devic...
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Sociedade Brasileira de Química
2013-01-01
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doaj-017d551242db4d2cace8a841555345472020-11-25T01:11:18ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642013-01-01361165170Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistryRicardo Nantes LiangWagner Diego GonçalvesMarccus Victor Almeida MartinsFrank Nelson Crespilho<abstract language="eng">The electrochemical properties of micro and nano-electrodes are widely investigated due to their low faradaic and capacitive currents, leading to a new generation of smart and implantable devices. However, the current signals obtained in low-dimensional devices are strongly influenced by noise sources. In this paper, we show the evaluation of filters based on Fast Fourier Transform (FFT) and their implementation in a graphical user interface (GUI) in MATLAB®. As a case study, we evaluated an electrochemical reaction process of charge transfer via outer-sphere. Results showed successful removal of most of the noise in signals, thus proving a promising tool for low-scale measurement.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000100027microelectrodesnoisedigital filters |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ricardo Nantes Liang Wagner Diego Gonçalves Marccus Victor Almeida Martins Frank Nelson Crespilho |
spellingShingle |
Ricardo Nantes Liang Wagner Diego Gonçalves Marccus Victor Almeida Martins Frank Nelson Crespilho Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry Química Nova microelectrodes noise digital filters |
author_facet |
Ricardo Nantes Liang Wagner Diego Gonçalves Marccus Victor Almeida Martins Frank Nelson Crespilho |
author_sort |
Ricardo Nantes Liang |
title |
Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry |
title_short |
Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry |
title_full |
Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry |
title_fullStr |
Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry |
title_full_unstemmed |
Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry |
title_sort |
filtros digitais por transformadas de fourier aplicados em eletroquímica digital filters based on fourier transforms for application in electrochemistry |
publisher |
Sociedade Brasileira de Química |
series |
Química Nova |
issn |
0100-4042 1678-7064 |
publishDate |
2013-01-01 |
description |
<abstract language="eng">The electrochemical properties of micro and nano-electrodes are widely investigated due to their low faradaic and capacitive currents, leading to a new generation of smart and implantable devices. However, the current signals obtained in low-dimensional devices are strongly influenced by noise sources. In this paper, we show the evaluation of filters based on Fast Fourier Transform (FFT) and their implementation in a graphical user interface (GUI) in MATLAB®. As a case study, we evaluated an electrochemical reaction process of charge transfer via outer-sphere. Results showed successful removal of most of the noise in signals, thus proving a promising tool for low-scale measurement. |
topic |
microelectrodes noise digital filters |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000100027 |
work_keys_str_mv |
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