摘要
针对sEMG采集中传统调理电路结构复杂、体积大、功耗高、固有噪声高的问题,在对调理电路进行功能分析、噪声分析的基础上,对典型调理电路的结构进行优化和合并。替换反向积分电路、右腿驱动电路、射频抑制电路、去除硬件工频滤波电路,增强其输入直流电压容错性,减少元件数量,降低其固有噪声、功耗。实验表明,设计的sEMG调理电路噪声抑制、便携性,均达到国际主流水准。
Traditional sEMG acquisition conditioning circuit has the problem of structural complexity, large volume, high power consumption and high inherent noise. In this thesis, structure of typical conditioning circuit is optimized and consolidated based on functional and noise analysis, the anti-integrator circuit, right leg drive circuit, RF suppression circuit are replaced, and hardware-frequency filter circuit is removed, so as to enhance the input DC voltage fault tolerance, reduce components count, inherent noise and power consumption. Experiments show that, the noise suppression and portability of sEMG conditioning circuit designed in this thesis are up to the standards of international mainstream.
出处
《机电一体化》
2013年第10期69-74,共6页
Mechatronics
关键词
肌电采集
信号调理
噪声抑制
便携性
sEMG acquisition signal condition noise reduction portability