Bio-potential noise of dry printed electrodes: physiology versus the skin-electrode impedance.
Physiol Meas
; 44(9)2023 09 26.
Article
en En
| MEDLINE
| ID: mdl-37607562
Objective. To explore noise characteristics and the effect physiological activity has on the link between impedance and noise.Approach. Dry-printed electrodes are emerging as a new and exciting technology for skin electro-physiology. Such electrode arrays offer many advantages including user convenience, quick placement, and high resolution. Here we analyze extensive electro-physiological data recorded from the arm and the face to study and quantify the noise of dry electrodes, and to characterize the link between noise and impedance. In particular, we studied the effect of the physiological state of the subject (e.g. rapid eye movement sleep) on noise.Main results. We show that baseline noise values extracted from dry electrodes in the arm are in agreement with the Nyquist equation. In the face, on the other hand, the measured noise values were higher than the values predicted by the Nyquist equation. In addition, we studied how different electrode properties affect performances, including electrode size, shape, and material properties.Significance. Altogether, the results presented here provide a basis for understanding dry electrode performances and substantiate their great potential in electro-physiological investigations.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fenómenos Fisiológicos de la Piel
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Physiol Meas
Asunto de la revista:
BIOFISICA
/
ENGENHARIA BIOMEDICA
/
FISIOLOGIA
Año:
2023
Tipo del documento:
Article
País de afiliación:
España
Pais de publicación:
Reino Unido