前臂多腱肌的多通道表面肌电检测电极阵列装置的设计_英文_杨丹丹.pdf

第 10 卷 第 2 期 纳 米 技 术 与 精 密 工 程 Vol． 10 No． 2 2012 年 3 月 杨丹丹等: 前臂多腱肌的多通道表面肌 电检测电极阵列装置的设计( 英文) · · 2012 年 3 月 Nanotechnology and Precision Engineering Mar． 2012 Design of Electrode Array for Multichannel sEMG Recording of Multitendoned Forearm Muscles YANG Dan-dan ，HOU Wen-sheng ，WU Xiao-ying ，ZHENG Xiao-lin ( Bioengineering College ，Chongqing University ，Chongqing 400044 ，China) Abstract: A linear electrode array was designed to record multichannel surface electromyography ( sEMG) of multitendoned forearm muscles noninvasively． Eight gold-coated bar electrodes were fabrica- ted using a flex-print technique and arranged in one-dimensional array with inter-electrode distance( IED) ( center-to-center) of 5 mm． The disposable adhesive non-contact structure was made with pre-punched double-sided medical tape for filling a small amount of conductive cream and attaching to skin with ease． Single differential sEMG signal was amplified and band-pass filtered． Low electrode impedance guaran- tees the consistent electrical property of gold-coated electrode． Low and relatively stable electrode-skin impedances ensure the stability of baseline and a good signal-to-noise ratio( SNR) ． To explore the practi- cal possibility of the electrode array ，14 channel sEMG signals of nine subjects were simultaneously recor- ded from flexor digitorum superficialis( FDS) during single-digit force production tasks． High stability of baseline ，excellent quality of sEMG signals and good channel discrimination of muscle activation indicate that this electrode array device is a promising technology for long-