【摘要】 介绍了一种为消除 5 0Hz干扰而设计的肌电 (EMG)前置放大器 ,通过对前置放大器采取电磁屏蔽处理、DC DC隔离变换器供电和浮地共模自举等措施 ,获得了满意的抗 5 0Hz干扰性能更多还原

【Abstract】 The design of EMG preamplifier for eliminating interference of 50Hz is presented. Satisfactory results are obtained by means of shielding preamplifier from electric and magnetic radiation, powering the detecting circuit with a DC DC isolated converter, floating reference ground of preamplifier and letting it be driven by common mode, etc.更多还原