基于ARM9和LabVIEW的多路神经信号采集系统中AFE的研制  

Research on AFE in ARM9 and LabVIEW based on multi-channel neural signal acquisition system

作　　者：朱永宏[1] 马梅方[2] 梅杓春[1] 

机构地区：[1]南京邮电大学自动化学院,南京210003 [2]复旦大学神经生物学研究所,上海200032

出　　处：《国外电子测量技术》2008年第2期26-29,共4页Foreign Electronic Measurement Technology

摘　　要：论文详细探讨了基于ARM9和LabVIEW的多路神经信号采集系统中8通道模拟前端电路的研制。为与本系统选用的S3C2410内置的ADC可靠配接,根据电路理论中的叠加原理,特别自行设计给出了双极性转单极性并线性限幅的完整电路,并深入分析了其设计思想。对研制的电路进行了理论分析推算和电路仿真,并用选购的国外脑神经信号仿真发生器的波形信号进行了相关实验。相应电路及设计技术对应用嵌入式系统技术的多路微弱信号采集等的电路研制有实际应用参考价值。This paper discusses the research on AFE in ARM9 and LabVIEW based multi-channel neural signal acquisition system in detail. According to the superposition principle of circuit theory, the circuits, which can transform the signal from bipolar to monopolar and linearly restrict its amplitude for matching the ADC of S3C2410, is specifically designed and fully given. Its design idea is also deeply analyzed. With the signal of imported cranial nerve signal simulation generator, the related experiment has been conducted on the developed circuit, which the theoretical analysis, calculation and circuit simulation is also made. The designed circuit and technology are of practical reference value for the research on circuit of multi-channel feeble signal acquisition based on embedded system technology.

关 键 词：神经信号 模拟前端 适配电路 ARM9 LABVIEW 

分 类 号：TP332.33[自动化与计算机技术—计算机系统结构] TP311.56[自动化与计算机技术—计算机科学与技术]