Study of a Control Circuit for a Potentiostat Using a Single Power Sources
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| Συγγραφείς: | , |
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| Μορφή: | artículo original |
| Κατάσταση: | Versión publicada |
| Ημερομηνία έκδοσης: | 2024 |
| Περιγραφή: | In this work, an electronic control circuit using a single power source is presented for its use as a lowcost potentiostat, which is operated from a computer by means of an Arduino UNO board. The equations describing the behaviour of the circuit are derived, and then used to set the voltage of the electrochemical cell, as well as the sweep rate for a particular electrochemical experiment. Additionally, a set of equations to measure the current flowing through the electrochemical cell is derived, and the range of currents that can be accurately measured is presented. Several experiments are conducted in order to evaluate the capacity of the system to set the voltage of the cell and the sweep rate. The accuracy of the current measurements is also assessed though these tests. The obtained results show an important dependency between the range of cell voltages that can be applied and the resistance measured between the electrodes of the potentiostat. Also, the accuracy of the sweep rate depends on the delay applied and the number of data being recorded. Finally, the error in the current measurement is associated with the magnitude of this current and the feedback resistance being used in the current follower. |
| Χώρα: | Portal de Revistas UCR |
| Ίδρυμα: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Γλώσσα: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/59198 |
| Διαθέσιμο Online: | https://revistas.ucr.ac.cr/index.php/ingenieria/article/view/59198 |
| Λέξη-Κλειδί : | Arduino UNO current follower electrochemical cell operational amplifier potentiostat Amplificador operacional celda electroquímica potenciostato seguidor de corriente |