Skin grasping sEMG interface based on microneedle array electrode

摘要

A surface electromyography (sEMG) signal is a measure of electricity generated by muscle activation taken on the skin surface. To measure a clear and reliable sEMG signal, stable skin contact is required. If the electrode is moved with respect to the skin, the charge distribution at the interface will be changed, causing a noise known as a motion artifact. In this study, a skin grasping sEMG interface is proposed to guarantee stable electrode-skin contact. A bent interface grasps and presses a limb. The MNA electrodes integrated in both ends of the interface allow stable skin contact. Both a skin contact condition investigation and a classification of hand motions are demonstrated to assess practicality.