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Noise-Resistant CECG Using Novel Capacitive Electrodes.

ABSTRACT: For years, capacitive electrocardiogram (CECG) has been known to be susceptible to ambient interference. In light of this, a novel capacitive electrode was developed as an effective way to reduce the interference effect. This was done by simply introducing the capacitive elector in series with a 1 pF capacitor, and the 60 Hz common mode noise induced by AC power lines was cancelled using a capacitive right leg (CRL) circuit. The proposed electrode did as expected outperform two counterparts in terms of SNR, and particularly gave an up to 99.8% correlation between RRIs extracted from an ECG and a CECG signal, a figure far beyond 52% and 63% using the two counterparts. This capacitive electrode was originally designed for long-term noncontact monitoring of heart rate, and hopefully can be integrated to portable devices for other medical care services in the near future.

SUBMITTER: Chen CC

PROVIDER: S-EPMC7248718 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Noise-Resistant CECG Using Novel Capacitive Electrodes.

Chen Chi-Chun CC Chen Cheng-Wei CW Hsieh Chang-Wei CW

Sensors (Basel, Switzerland) 20200501 9

For years, capacitive electrocardiogram (CECG) has been known to be susceptible to ambient interference. In light of this, a novel capacitive electrode was developed as an effective way to reduce the interference effect. This was done by simply introducing the capacitive elector in series with a 1 pF capacitor, and the 60 Hz common mode noise induced by AC power lines was cancelled using a capacitive right leg (CRL) circuit. The proposed electrode did as expected outperform two counterparts in t ...[more]

PMID: 32369964

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