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With the continuous development of wearable health monitoring technology, new types of Electrocardiogram (ECG) electrodes become the focus of attention, such as textile electrode, non-contact electrode, and micro-needle electrode. However, there are not yet unified performance testing methods for different types of electrodes. Two evaluating indicators proposed in the national pharmaceutical industry standard YY/T 0196-2005 (disposable ECG electrodes) are DC offset voltage and AC impedance. In this paper, Millipore films were used to simulate the human skin, and a testing platform for quantitatively evaluating the electrode performance was designed, composed of three parts: a simulating skin module, a pressure controlling device and a measuring device, which could simulate the electrochemical performance of the interface between ECG signals and human skin surface. And some quantitatively parameters, obtained with this platform, were impedance spectrum of electrode-skin contact interface, static open circuit voltage and dynamic open circuit voltage, which was very important for ECG electrode performance analysis. Keywords-wearable; electrode; millipore film; offset voltage; AC impedance

A Performance Testing Platform of ECG Electrodes Based on Millipore Films