Filtros digitais por transformadas de Fourier aplicados em eletroquímica
| Autor: | Ricardo Nantes Liang, Wagner Diego Gonçalves, Marccus Victor Almeida Martins, Frank Nelson Crespilho |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 36, Iss 1, Pp 165-170 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1678-7064 0100-4042 |
| DOI: | 10.1590/S0100-40422013000100027 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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