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ADS1298采集心电信号基线漂移问题

Other Parts Discussed in Thread: ADS1298
ADS1298芯片,采集的心电信号是一个差值,心电信号很明显,为什么基线总在漂呢?是右腿驱动没接好吗?还是是因为人体没接地吗?如需接地,该怎么连接呢?这是从ADS1298输出的数字信号,以电压值形式打印的!