基于纤维骨架增强的柔性表面肌电电极
Flexible surface myoelectric electrodes based on fiber skeleton reinforcement
高振强 1王飞 1白彦军1
作者信息
- 1. 青岛理工大学机械与汽车工程学院,山东 青岛 266520
- 折叠
摘要
提出了一种由聚二甲基硅氧烷(PDMS)/银浆/纤维骨架+柔性银浆+PDMS三层结构组成的柔性表面肌电电极.分析了其在弯曲、扭转等不同外界刺激下的电阻变化情况,通过黏附力测试、超声测试等实验对电极的稳定性进行了测试.结果表明,三层的柔性表面肌电电极具有高导电率(<0.5 Ω/sq)、优异的电阻稳定性(1 000次弯曲后电阻变化率<3%)、良好的机械稳定性(电极与基底黏附力>1 000 N/m)和皮肤一致性.将其应用于肌肉电传感器中,电极能够有效地识别各种运动强度,信噪比比传统的Ag/AgCl凝胶电极和铜电极分别提高了36%和49%.
Abstract
A flexible surface myoelectric electrode based on a polydimethylsiloxane(PDMS)/silver paste/PDMS@fiber skeleton@flexible silver paste three-layer structure was proposed.The resistance changes under different external stimuli such as bending and twisting were analyzed,and the stability of the electrodes was evaluated through adhesion and ultra-sonic experiments.The results indicated that such a three-layered flexible surface EMG electrode had a high conductivity of below 0.5 Ω/sq,excellent resistance stability with a resistance change rate lower 3%after 1 000 bending),good me-chanical strength with an electrode-substrate adhesion higher than 1 000 N/m,and good skin consistency.When used for an electrical muscle sensor,the developed electrode could effectively recognize various movement intensities with a signal-to-noise ratio,which was 36%and 49%higher than those of the conventional Ag/AgCl gel electrode and copper elec-trode,respectively.
关键词
纤维骨架/表面肌肉电电极/三层结构Key words
fiber skeleton/surface muscle electrical electrodes/three-decker引用本文复制引用
基金项目
山东省自然科学基金项目(2018GGX103050)
出版年
2024
国家科技期刊平台
NSTL
万方数据