Development of Textile Electrode for Electrocardiogram Measurement Based on Conductive Electrode Configuration

Recently, the demands of the wearable systems and products for monitoring biosignal to manage the health are increased by the increasing interests for introducing an aging society and for the lifestyle of well-being. Global sports brands such as Adidas and Nike tried to enter into the market with the study about the wearable system for measuring the heart-rate, and lately global casual brand of Polo is going to introduce the market expansion with business implementations. However, the studies of textile materials for measuring an electrocardiogram have constantly conducted but the studies for correlation of an electrocardiogram measurement signal by electrode structure and type are insufficient. Therefore, this study developed 8 types of electro-thread by considering the condition of TM and covering based on the silver thread, and developed total 16 type electrodes by consisting two different size of electrode. By comparing and analyzing magnitudes of biosignal and noise according to electrode size when standing with applied the developed electrode into tight sports wears, we evaluated the effectiveness with electrocardiogram measurement electrode by its size. From this case, it derived the correlation of electrode for electrocardiogram measurement and design factors according to the final suitable electro-thread and the electrode size after analyzing signals and noises from standing and walking based on small size electrode that is dominant to measure signals.