title: Curved Microneedle Array-Based sEMG Electrode for Robust Long-Term Measurements and High Selectivity.
abstract: 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.
authors.affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea. minjaekim@postech.ac.kr.
authors.forename: Minjae
authors.initials: M
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea. ktw2020@postech.ac.kr.
authors.forename: Taewan
authors.initials: T
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea. smkds@postech.ac.kr.
authors.forename: Dong Sung
authors.initials: DS
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea. wkchung@postech.ac.kr.
authors.forename: Wan Kyun
authors.initials: WK
authors.lastname: Chung
mesh_terms: D004566:Electrodes; D004576:Electromyography / Q000295:instrumentation*; D006801:Humans; D055616:Microtechnology / Q000295:instrumentation; D009339:Needles
keywords: curved electrode; microneedle array; surface electromyography