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Revista EIA
Article . 2007
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ELECTRONIC SYSTEM FOR EXPERIMENTATION IN AC ELECTROGRAVIMETRY II: IMPLEMENTED DESIGN

Authors: Torres Villa, Róbinson Alberto; Arnau Vives, Antonio; Perrot, Hubert; Aedo Cobo, José Edinson;

ELECTRONIC SYSTEM FOR EXPERIMENTATION IN AC ELECTROGRAVIMETRY II: IMPLEMENTED DESIGN

Abstract

ABSTRACT: En este artículo se presenta una descripción detallada del sistema electrónico diseñado para mejorar las medidas en un sistema experimental de electrogravimetría AC. El sistema diseñado se encarga de adquirir los datos adecuados para determinar la función de transferencia electrogravimétrica (EGTF) y proveer información relacionada con la transferencia de masa en una celda electroquímica en la técnica de electrogravimetría AC, pero manteniendo un buen compromiso entre el ancho de banda de enganche y la resolución en el seguimiento de la frecuencia, es decir, el sistema incrementa el ancho de banda para permitir el seguimiento de señales con frecuencias hasta de 1 kHz, pero conservando un exacto y continuo seguimiento de esta señal. El aumento del ancho de banda permite el estudio de procesos con una cinética rápida en aplicaciones electroquímicas y el seguimiento continuo de la señal permite la obtención de medidas precisas con buena resolución en contraste con los datos de frecuencia promediados entregados por los frecuencímetros convencionales. El sistema se basa en un bucle de enganche de fase analógico-digital (A-D PLL).

RESUMEN: A detailed description of the electronic system designed to improve the measurements in an experimental AC electrogravimetry setup is presented. This system is committed to acquire appropriated data for determining the Electrogravimetric Transfer Function (EGTF) and provide information regarding the mass transfer in an electrochemical cell in the AC Electrogravimetry Technique, but maintaining a good trade-off between the locking frequency bandwidth and the resolution in the frequency tracking, that is, enlarging the bandwidth of the system to follow signals with frequency as higher as 1 kHz, but maintaining an accurate and continuous tracking of this signal. The enlarged bandwidth allows the study of fast kinetic process in electrochemical applications and the continuous tracking let to achieve a precise measurement with good resolution rather than average frequency records obtained by conventional frequency meters. The system is based on an Analogue-Digital Phase Locked Loop (A-D PLL).

COL0010717

Country
Colombia
Keywords

Technology, 330, Phase locked loops, REI00059, coarse and fine tuning. Palabras claves, COARSE AND FINE TUNING, PHASE LOCKED LOOPS, ENERGY, COMPROMISO ANCHO DE BANDA - RESOLUCIÓN, compromiso ancho de ban, quartz crystal microbalance, Quartz crystal microbalance, Bandwidthresolution trade-off, AJUSTE GRUESO Y FINO, ajuste grueso y fino, bandwidth-resolution trade-off, Coarse and fine tuning, microbalanza de cristal de cuarzo, Compromiso ancho de banda-resolución, compromiso ancho de banda-resolución, ELECTROGRAVIMETRÍA AC, coarse and fine tuning, QUARTZ CRYSTAL MICROBALANCE, Electrogravimetría AC, T, electrogravimetría AC, 600, BUCLES DE ENGANCHE DE FASE, MICROBALANZA DE CRISTAL DE CUARZO, Engineering (General). Civil engineering (General), phase locked loops, ENERGÍA, Bucles de enganche de fase, Ajuste grueso y fino, bandwidthresolution trade-off, AC ELECTROGRAVIMETRY, AC electrogravimetry, Microbalanza de cristal de cuarzo, BANDWIDTHRESOLUTION TRADE - OFF, ELECTRÓLISIS, ELECTROLYSIS, TA1-2040, bucles de enganche de fase

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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