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Artifact tolerance test for capacitive wearable chest-belt electrocardiograph - Effect of electrode configuration

Kato, Yuki and Motohara, Shosaku and Ohmuta, Takao and Noor Azmi, Azran Azhim and Ueno, Akinori (2017) Artifact tolerance test for capacitive wearable chest-belt electrocardiograph - Effect of electrode configuration. IEEJ Transactions on Electronics, Information and Systems, 137 (4). pp. 607-615. ISSN 0385-4221 E-ISSN 1348-8155

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Electrocardiogram (ECG) provides useful information for the diagnosis of cardiovascular disease. In capacitive-coupled ECG sensing, electrostatic artifact and movement artifact become serious problems. In particular, low frequency components such as T wave of ECG are susceptible to the artifacts. To obtain clear ECG, high stability is required for the electrocardiograph using capacitive-coupled electrode. In this study, tolerance of capacitive wearable chest-belt electrocardiograph was tested for the electrostatic and movement artifacts. A constant electrostatic artifact was discharged repeatedly on three types of electrode having different shielding configurations, and their transient responses were compared in terms of deviation area, transient slope and recovery time. The results revealed the best tolerance of doubly-shielded five-layered electrode. The best performed five-layered electrode was used for exercise tolerance test. Then, detection rates of R-wave and T-wave of ECG, and standard deviation of base line of the recordings were calculated as tolerance indices and compared to those obtained by commercial disposable electrode. Although R-wave detection rate of the five-layered electrode decreased by 2.0%, the rate of T-wave was comparable to those of the disposable electrode. Furthermore, the standard deviation of the base line was significantly smaller than that of the disposable electrode (p<0.01).

Item Type: Article (Journal)
Additional Information: 7380/46758
Uncontrolled Keywords: capacitive electrode, shield structure, wearable sensing, artifact tolerance, low frequency component
Subjects: T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science > Department of Biotechnology
Depositing User: Ir Dr Azran Azhim Noor Azmi
Date Deposited: 12 Feb 2018 18:13
Last Modified: 16 Apr 2018 16:04
URI: http://irep.iium.edu.my/id/eprint/46758

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