Application of Composite Distributed Electrodes in Cardiographic Sensors; Micro and Nanosystems; Vol. 13, iss. 4

Application of Composite Distributed Electrodes in Cardiographic Sensors; Micro and Nanosystems; Vol. 13, iss. 4

Dettagli Bibliografici
Parent link:Micro and Nanosystems.— .— Sharjah: Bentham Science Publishers
Vol. 13, iss. 4.— 2021.— P. 426-432
Altri autori: Uvarov N. F. Nikolai, Bokhonov B. B. Boris, Ulihin A. S. Artem, Titkov A. I. Alexander, Yukhin Yu. M. Yuriy, Avdeeva D. K. Diana Konstantinovna, Yuzhakov M. M. Mikhail Mikhaylovich
Riassunto:Title screen
Background: An analysis of equivalent circuits used to interpret the impedance of bioelectrode for electrocardiography shows that the best description is achieved using a double-time constant model of the skin-electrode interface. However, for the measurements, it is necessary to use equipment with high input impedance, which leads to the loss of information about the real change in the bio-potential. Objective: The aim of the study is to comprehensively investigate and select the equivalent model that is used to interpret the impedance of a composite bioelectrode with distributed parameters. Methods: We used theoretical and experimental research methods. Results: It is proposed for measuring bio-potential to use Ag/AgI/Al2O3 electrodes with distributed parameters. Such electrodes are characterized by a higher contact area and their impedance is described in terms of equivalent circuits with Constant Phase Elements (CPE). It was shown that the electrode impedance is well described over a wide frequency range by an equivalent circuit typical for distributed electrodes including two CPE elements. Conclusion: It is experimentally shown that the distributed Ag/AgI/Al2O3 electrode has at least 6 times smaller polarization contribution than a commercial Ag/AgCl cardiographic electrode. It may enable more accurate measurements of bio-potentials providing less pulse shape distortion caused by polarization of electrochemical biosensors
Текстовый файл
Lingua:inglese
Pubblicazione: 2021
Soggetti:
biopotential
skin/electrode interface impedance
distributed electrode
constant phase element
AgI
bioelectrode
электронный ресурс
труды учёных ТПУ
Accesso online:http://dx.doi.org/10.2174/1876402913666210126145742
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=686682

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