【作者】 李银林； 冯肖珊；

【Author】 LI Yin-lin,FENG Xiao-shan (School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China)

【机构】 北京理工大学机电学院；

【摘要】 研究耦合到人体的静电场微弱电流信号的检测方法,以实现基于主动准静电场的数据通信.设计了电流-电压转换电路、带通滤波电路和精密全波整流电路对该微弱电流信号进行检测.实验表明,该电路可以检测到μA级别弱电流信号,可作为接收机前级电路单元应用于体域通信系统中.更多还原

【Abstract】 The detecting method of electrostatic field weak current signal coupled to human body was studied to extract information and implement date communication.A current-voltage conversion circuit,a band pass filter and a precise full wave rectification circuit were studied and designed in order to detect the weak current signal.Experiment result shows that the circuit can pick upμA level weak current signal and can be used as the front-end circuit unit in body area communication receiver.更多还原