HUANG Yong, GUO Xu-hong, YAO Zhao-lin, et al. Wearable wireless EEG acquisition system with active dry electrode sensor[J]. 2017, 36(4): 80-83. DOI: 10.13873/J.1000-9787(2017)04-0080-04.
基于主动干电极传感器的无线可穿戴脑电采集系统
摘要
为了减少脑电信号(EEG)采集系统的复杂性、实验前长时间繁琐的准备过程
以及改善采集系统的抗干扰性、可穿戴性和舒适性
设计了一种带有8通道主动干电极传感器的无线可穿戴脑电采集系统
具有24位ADC
109 d B信噪比
±500 m V/10 Hz的交流输入范围。实验结果表明:该系统和商业系统记录的脑电图波形之间的相关系数为0.89
In order to reduce complexity of Electrophysiological signal collection system and long complicated preparation process before experiment
present a wireless wearable EEG acquisition system with 8-channel
active dry electrode sensor
24-bit ADC
109 d B SNR
± 500 m V/10 Hz AC input range
which improves anti-interference performance
increases comfort of wearing
and makes it suitable for wearable applications. Experimental results show that the correlation coefficient between the EEG waveform recorded by proposed systems and that by commercial systems is 0. 89. This system can be used for BCI applications based on the EEG recording and static steady-state visual evoked( SSVEP).
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references
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