基于原位焦耳热处理的自黏附柔性表面肌电电极阵列设计与制备  

The design and fabrication of self-adhesive flexible surface EMG electrode array based on in-situ Joule heat treatment

作　　者：胡洋 陆骐峰 黄建尊 孙富钦 夏翌彰 曹云[1] 聂伟荣[1] 张珽[2,5] HU Yang;LU QiFeng;HUANG JianZun;SUN FuQin;XIA YiZhang;CAO Yun;NIE WeiRong;ZHANG Ting(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO),Chinese Academy of Sciences(CAS),i-lab,Nano-X Vacuum Interconnected Workstation,Suzhou 215123,China;School of CHIPS,Xi'an Jiaotong-Liverpool University,Suzhou 215123,China;School of Computer Science&School of Cyberspace Science,XiangTan University,Xiangtan 411105,China;School of Nano-Tech and Nano-Bionics,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]中国科学院苏州纳米技术与纳米仿生研究所,创新实验室,NANO-X纳米真空互联实验站,苏州215123 [3]西交利物浦大学芯片学院,苏州215123 [4]湘潭大学计算机学院·网络空间安全学院,湘潭411105 [5]中国科学技术大学,纳米技术与纳米仿生学院,合肥230026

出　　处：《中国科学：技术科学》2024年第5期861-869,共9页Scientia Sinica(Technologica)

基　　金：国家自然科学基金(批准号:62125112,62071463,62071462,22109173);西交利物浦科研发展基金(编号:RDF-21-01-027)资助。

摘　　要：随着柔性电子的发展,表皮电子在人机交互中的作用越来越突出.然而,柔性器件的稳定性和可靠性仍然是其得到广泛应用的一个挑战.本文设计一种以聚乙烯醇(PVA)为衬底,金(Au)为电极层的表面肌电(sEMG)电极阵列,通过原位焦耳加热方法对有源区域PVA衬底进行精确热处理调控,提高其结晶度和模量,提升有源区域电极的稳定性.基于该方法制备的sEMG电极阵列实现了与皮肤的共形贴附,可稳定采集8 h以上的高信噪比(达到21.3 d B)的肌电信号,进一步开展了基于sEMG信号的手势识别应用研究,识别率可达99.27%.以上结果表明,本研究提出的sEMG电极阵列制备方法简单高效,可长时间稳定工作,有望在基于sEMG信号的人机交互领域中得到应用.With the development of flexible electronics,epidermal electronics have played an increasingly prominent role in human-computer interaction.However,the stability and reliability of flexible devices remain a challenge for their widespread applications.In this paper,a surface electromyography(sEMG)electrode array is designed with polyvinyl alcohol as the substrate and gold(Au)as the electrode layer.The active area is accurately treated by in-situ Joule heating to improve the crystallinity and modulus to enhance the electrode stability.The sEMG electrode array can conformally attach to the skin,and an sEMG signal with high signal-to-noise(-21.3 dB)can be recorded for over 8 hours.Further research on the application of gesture recognition based on the sEMG signal was conducted,and the recognition rate reached 99.27%.The above results show that the preparation method of the sEMG electrode array proposed in this study is simple and efficient,can work stably for a long time,and can be applied in the field of human-computer interaction based on sEMG signals.

关 键 词：表面肌电 电极阵列 焦耳加热 手势识别 

分 类 号：R318.6[医药卫生—生物医学工程] TN911.7[医药卫生—基础医学]