A simple and reproducible capacitive electrode

Capacitive Electrodes (CE) allow the acquisition of biopotentials through a dielectric layer, without the use of electrolytes, just by placing them on skin or clothing, but demands front-ends with ultra-high input impedances. This must be achieved while providing a path for bias currents, calling fo...

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Detalles Bibliográficos
Autores principales: Spinelli, Enrique Mario, Guerrero, Federico Nicolás, García, Pablo Andrés, Haberman, Marcelo Alejandro
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ingeniería
Electrotecnia
insulating electrodes
active electrodes
non-contact measurements
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/105075
https://www.sciencedirect.com/science/article/abs/pii/S1350453315002854
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-105075
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería
Electrotecnia
insulating electrodes
active electrodes
non-contact measurements
spellingShingle Ingeniería
Electrotecnia
insulating electrodes
active electrodes
non-contact measurements
Spinelli, Enrique Mario
Guerrero, Federico Nicolás
García, Pablo Andrés
Haberman, Marcelo Alejandro
A simple and reproducible capacitive electrode
topic_facet Ingeniería
Electrotecnia
insulating electrodes
active electrodes
non-contact measurements
description Capacitive Electrodes (CE) allow the acquisition of biopotentials through a dielectric layer, without the use of electrolytes, just by placing them on skin or clothing, but demands front-ends with ultra-high input impedances. This must be achieved while providing a path for bias currents, calling for ultra-high value resistors and special components and construction techniques. A simple CE that uses bootstrap techniques to avoid ultra-high value components and special materials is proposed. When electrodes are placed on the skin; that is, with coupling capacitances C<sub>S</sub> of around 100 pF, they present a noise level of 3.3 μV<sub>RMS</sub> in a 0.5-100 Hz bandwidth, which is appropriate for electrocardiography (ECG) measurements. Construction details of the CE and the complete circuit, including a fast recovery feature, are presented.
format Articulo
Articulo
author Spinelli, Enrique Mario
Guerrero, Federico Nicolás
García, Pablo Andrés
Haberman, Marcelo Alejandro
author_facet Spinelli, Enrique Mario
Guerrero, Federico Nicolás
García, Pablo Andrés
Haberman, Marcelo Alejandro
author_sort Spinelli, Enrique Mario
title A simple and reproducible capacitive electrode
title_short A simple and reproducible capacitive electrode
title_full A simple and reproducible capacitive electrode
title_fullStr A simple and reproducible capacitive electrode
title_full_unstemmed A simple and reproducible capacitive electrode
title_sort simple and reproducible capacitive electrode
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/105075
https://www.sciencedirect.com/science/article/abs/pii/S1350453315002854
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