摘要
介绍了一种表面肌电信号 (EMG)测试调理电路和信号处理的方法。表面EMG测量中最难处理的问题之一是工频(5 0Hz)干扰 ,它处在有效的肌电信号频带之中。针对表面EMG的测量特点设计了一种信号调理电路 ,使肌电信号和工频信号并行单独处理 ,避免了不加区分地采用工频陷波器 ,这一设计思想在实际的肌电信号检测时取得了较好的实验结果。
A surface electromyography (EMG) detection and processing circuit is discussed. The surface EMG is usually disturbed by power frequency noise. In that cases, it is a problem, because the surface EMG is confused with power frequency noise. A processing circuit for the measurement of surface EMG is designed by using a parallel structure respectively for EMG signal processing and power frequency noise processing. It can be avoided that a 50Hz trap filter abused. The experimentation proved the developed circuit was effective.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2005年第2期193-195,210,共4页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金 (60 4740 5 4)
浙江省自然科学基金 (RC0 2 0 70 )资助项目
