Abstract

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Title:: Effects of design parameters of flexible electrode on electrode performance: a research based on electromyography signal analysis

Author(s):: LIU Yexiao; XU Yulin; ZHAO Cuilian; School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China

Keywords:: flexible electrode; surface electromyography; design parameter; time-frequency domain

Abstract:: Abstract: Flexible electrode has received wide attention from researchers because of its advantages in wearable surface electromyography signal acquisition. However, few studies have provided clear guidance and specifications for the design parameters of flexible electrode. Herein the parameters that may affect the performance of the electrode are analyzed. Five kinds of flexible dry electrodes of different specifications fabricated by flexible printing process and inkjet printing process are compared with the commercial wet electrode. The electromyography signal acquisition experimentation based on ulnar wrist extensors is designed to obtain 100 surface electromyography signal segments. Finally, the time-frequency domain characteristics of the signal segment are analyzed, thereby determining the effect of the relevant parameters on the electrode performance. The results show that the active flexible printed circuit board electrodes after increasing the electrode height have a better signal acquisition performance.