Abstract: The quality of ECG electrode directly affects the quality of acquired signals. The popularly used silver/silver chloride wet electrode is easy to cause skin discomfort and even allergic reaction, as well as the decline of signal quality during long time detection due to the drying of conductive adhesive. The development of fabric electrodes is becoming one of the research hot-points. In this paper, the principle of ECG is introduced firstly, and then, the material, structure, evaluation and application of fabric electrodes are presented successively.

Key words: ECG signal; fabric electrode; flexible electrode; intelligent textile