【摘要】 为了方便且实时获取全面的脑活动信息,设计了一种便携式脑电与血氧同步采集系统,用于实时监测脑功能活动。脑电电极将探测到的脑电信号滤波、放大,经蓝牙发送给微处理器,解析出脑电数据;光电探头将光信号转换成电信号,经放大分离、滤波和AD转换处理后,依据郎伯-比尔定律（Lambert-Beer law）计算出含氧血红蛋白（ΔHbO₂）和脱氧血红蛋白含量（ΔHb）。最后,通过与商用仪器Nu Amps和Oximeter的对比实验证实系统能在采集脑电信号的同时计算出ΔHbO₂和ΔHb。更多还原

【Abstract】 In order to obtain comprehensive brain activity information conveniently in real time, this study designs a portable EEG and blood oxygen synchronous acquisition system for real-time monitoring of brain functional activities. The EEG electrodes filter and amplify the detected EEG signals, and send them to the microprocessor via Bluetooth to analyze the EEG data; the photoelectric probe converts the optical signals into electrical signals, which are amplified and separated, filtered, and AD converted, calculates the brain’s oxygenation and blood-red protein（ΔHbO₂） and blood-red protein（ΔHb） by amplification of Lambert-Beer law. Finally, experiments with commercial instruments Nu Amps and Oximeter show that the system can calculate ΔHbO₂ and ΔHb while collecting EEG signals.更多还原