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Fig. 12 | BioMedical Engineering OnLine

Fig. 12

From: Electrochemical modeling and evaluation for textile electrodes to skin

Fig. 12

Equivalent circuit of skin–electrode electrochemical interface for (a) traditional wet electrodes and (b) textile electrodes. Ehc is the electrode half-cell potential between the electrode and the gel; Cd is the equivalent capacitance due to electrical double-layer information; Rd is charge transfer resistance; Rs is a series resistance of the gel medium; Esc and Ep are the inductive potential of the skin–electrode interface and a sweat gland; Ce and Re are the equivalent capacitance and resistance of the epidermis; Ep, Cp, and Rp stand for the effect of sweat glands as a parallel conduction path through the epidermis; Ra is a pure resistance of the dermis

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