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

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-in...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2015-07, Vol.15 (7), p.16265-16280
Main Authors: Kim, Minjae, Kim, Taewan, Kim, Dong Sung, Chung, Wan Kyun
Format: Article
Language:English
Subjects:
curved electrode
Electrodes
Electrolytes
Electromyography
Electromyography - instrumentation
Humans
microneedle array
Microtechnology - instrumentation
Needles
Pain
Polymers
Sensors
Skin
surface electromyography
Sweating
Usability
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Summary: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.
ISSN:1424-8220
1424-8220
DOI:10.3390/s150716265