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ADS1291采集心电,数据不稳问题

Other Parts Discussed in Thread: ADS1291, ADS1191

使用ADS1291采集人体心电,传感器刚刚接上时,采集到的数据幅度较大,不断的采集之后,会慢慢下降也就是数据的幅度变小。

请教哪位大神遇到过这种问题或者知道怎么解决?以下附图,各路大神请指教!

急急急!