In order to solve the problem of poor signal during dynamic ECG acquisition,the fabric dry electrodes were prepared using polyester spacer fabric as the substrate by a two-step,chlorination process,and their surface morphology,electrochemical properties and bioelectrical signal acquisition performance were characterized.The results showed that the electrode treated with chlorination for 10 s had optimal electrochemical properties,with an impedance of 4 647 Ω at 0.1 Hz,a static open-circuit potential amplitude of 0.114 mV,and a voltage amplitude of 1.413 mV.Compared with the wet electrode,the spacer fabric dry electrode had better dynamic ECG signal acquisition performance,and the baseline drift of ECG signal acquired at different swing angles is smaller than that of the wet electrode.
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