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Open AccessArticle

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

Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea
Author to whom correspondence should be addressed.
Academic Editor: Stefano Mariani
Sensors 2015, 15(7), 16265-16280;
Received: 2 March 2015 / Revised: 8 June 2015 / Accepted: 29 June 2015 / Published: 6 July 2015
(This article belongs to the Collection Modeling, Testing and Reliability Issues in MEMS Engineering)
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. View Full-Text
Keywords: surface electromyography; microneedle array; curved electrode surface electromyography; microneedle array; curved electrode
MDPI and ACS Style

Kim, M.; Kim, T.; Kim, D.S.; Chung, W.K. Curved Microneedle Array-Based sEMG Electrode for Robust Long-Term Measurements and High Selectivity. Sensors 2015, 15, 16265-16280.

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