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本文在实验的基础上,分析了影响生物电放大器前置级的共模抑制能力的诸因素,总结出高CMRR的生物电放大器的一般设计方法。采用光电耦合实现生物电放大器浮地是比较简便的。本文对光电耦合电路的工作速率进行了讨论。
Based on the experiment, the paper analyzes the factors that affect the common-mode rejection of the bio-amplifier’s preamp and concludes the general design method of the bio-amplifier with high CMRR. The use of optical coupling bioelectric amplifier floating is relatively simple. This article discusses the operating speed of optocoupler circuits.