Lecture

Biomedical Electrodes: Fundamentals and Impedance Modeling

Description

This lecture covers the fundamentals of bioelectrodes, including the electrochemical and electrical models, wearable electrodes such as skin, EEG, and implantable electrodes. It discusses the challenges related to biomedical electrodes, like interface impedance and signal distortion. The lecture also delves into the electrode-electrolyte interface, the concept of anode versus cathode, equilibrium potential, and double-layer capacitance. Furthermore, it explains the equivalent circuit model of an electrode, impedance analysis through Bode and complex plots, and mass transport by diffusion with a focus on Warburg impedance.

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