摘要
介绍了基于仪表放大器和通用滤波器的八通道脑电信号放大电路的设计方案。该方案通过多级放大和滤波,有效地消除了脑电信号强大背景噪声的干扰,从而实现微弱脑电信号的放大,采集到准确清晰的脑电波形。放大器结构简单,八个通道能实现从大脑皮层不同区域并行采集。
An 8-channel electroencephalogram （ EEG ） amplifier is designed based on instrumentation amplifier and universal active filter. Strong background noises are eliminated effectively by multi-level amplifier and filter, and un-Anamorphic EEG can be acquired and be displayed synchronously in computer. This design has simple structure and delicate appearance, and signals can be processed through its eight parallel channels.
出处
《天津工程师范学院学报》
2007年第1期25-27,共3页
Journal of Tianji University of Technology and Education
基金
劳动和社会保障部科技项目(LB200507)
关键词
脑电
八通道
仪表放大器
EEG
8-channel
instrumentation amplifier
