Curved Microneedle Array-Based sEMG Electrode for Robust Long-Term Measurements and High Selectivity

Sensors

Minjae Kim²  Taewan Kim²  Dong Sung Kim²  Wan Kyun Chung¹ 

[1] Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea;

关键词: surface electromyography;    microneedle array;    curved electrode;   

DOI  :  10.3390/s150716265

来源: mdpi

【 摘 要 】

Surface electromyography is widely used in many fields to infer human intention. However, conventional electrodes are not appropriate for long-term measurements and are easily influenced by the environment, so the range of applications of sEMG is limited. In this paper, we propose a flexible band-integrated, curved microneedle array electrode for robust long-term measurements, high selectivity, and easy applicability. Signal quality, in terms of long-term usability and sensitivity to perspiration, was investigated. Its motion-discriminating performance was also evaluated. The results show that the proposed electrode is robust to perspiration and can maintain a high-quality measuring ability for over 8 h. The proposed electrode also has high selectivity for motion compared with a commercial wet electrode and dry electrode.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.