蓝牙技术的心电前置放大电路定量计算及仿真

Ration Calculating and Emulation of Enlarging Circuit of the Heart Electricity Signal of Bluetooth Technology

蓝牙技术是一种短距离无线通信技术，其传输距离为10～100m，为利用蓝牙技术实现无线短距离的心电实时监护系统，设计了一种以二级放大器构成放大电路，作为便携式心电监测系统的模拟放大部分，对该电路进行了定量的计算和仿真，经实验证明该电路灵敏度高、稳定性好，实现了将人体袁皮的缓变微弱信号放大送到A／D中，最后通过蓝牙芯片发射出去。

Bluetooth technology is the short distance wireless communication technology,it transmit from 10- 100 m . In order to realize the heart electricity of the wireless short distance by using the technology of bluetooth, the article designs the amplifier circuit with two amplifiers ,which can be used as amplifying the simulation of the electric monitoring system of portable heart, this text has carried on qualitative calculation and emulation. The circuit is high in sensitivity,the stability is good, which amplifies faint signal on human epidermis,then it is sent to A/D, finally it is launched out through the bluetooth chip.