Capacitive electrode with high sensitivity for detection of electrical biopotentials

J. L. Varela-Benítez; J. O. Rivera-Delgado; J. H. Espina-Hernández; J. M. De La Rosa-Vázquez

doi:10.17488/RMIB.36.2.1pdf

Capacitive electrode with high sensitivity for detection of electrical biopotentials

Translated title of the contribution: Capacitive electrode with high sensitivity for detection of electrical biopotentials

J. L. Varela-Benítez, J. O. Rivera-Delgado, J. H. Espina-Hernández, J. M. De La Rosa-Vázquez

Escuela Superior de Ingeniería y Arquitectura (ESIA), Unidad Zacatenco

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In this work the design and implementation of a capacitive noncontact electrode for detecting biopotentials in the human body is presented. Electrical circuits, the selection criteria of the operational amplifier based on the analysis of the optimal noise resistance are presented, the physical assembly is described and the signals obtained and evaluation of its performance are presented based on the signaltonoise ratio S/N. We show the performance of several operational amplifiers and it is shown the versatility of the electrode to detect several biopotentials making adjustments to the values of two electrical components of the electrode.

Translated title of the contribution	Capacitive electrode with high sensitivity for detection of electrical biopotentials
Original language	English
Pages (from-to)	S183S
Journal	Revista Mexicana de Ingenieria Biomedica
Volume	36
Issue number	2
DOIs	https://doi.org/10.17488/RMIB.36.2.1pdf
State	Published - 1 Jan 2015

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AU - Varela-Benítez, J. L.

AU - Rivera-Delgado, J. O.

AU - Espina-Hernández, J. H.

AU - De La Rosa-Vázquez, J. M.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - In this work the design and implementation of a capacitive noncontact electrode for detecting biopotentials in the human body is presented. Electrical circuits, the selection criteria of the operational amplifier based on the analysis of the optimal noise resistance are presented, the physical assembly is described and the signals obtained and evaluation of its performance are presented based on the signaltonoise ratio S/N. We show the performance of several operational amplifiers and it is shown the versatility of the electrode to detect several biopotentials making adjustments to the values of two electrical components of the electrode.

AB - In this work the design and implementation of a capacitive noncontact electrode for detecting biopotentials in the human body is presented. Electrical circuits, the selection criteria of the operational amplifier based on the analysis of the optimal noise resistance are presented, the physical assembly is described and the signals obtained and evaluation of its performance are presented based on the signaltonoise ratio S/N. We show the performance of several operational amplifiers and it is shown the versatility of the electrode to detect several biopotentials making adjustments to the values of two electrical components of the electrode.

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U2 - 10.17488/RMIB.36.2.1pdf

DO - 10.17488/RMIB.36.2.1pdf

M3 - Artículo

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JO - Revista Mexicana de Ingenieria Biomedica

JF - Revista Mexicana de Ingenieria Biomedica

IS - 2

ER -

Capacitive electrode with high sensitivity for detection of electrical biopotentials

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