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ads1191

Other Parts Discussed in Thread: ADS1191

请问大家:

ADS1191做ecg的时候你们校准了么?

测量内部的1mv,读出来的数据感觉偏差太大,ADC短路,读输出都没有很大

然后做ads1191的校准,

具体步骤是:

1.置位MISC2的CALIB_ON

2.发送1A校准命令

然后去读内部1mv基本没变

到底校准是什么步骤?

有必要校准么?

  • 关于校准, 手册好像没有多说什么

    OFFSETCAL: Channel Offset Calibration
    This command is used to cancel the channel offset. The CALIB_ON bit in the MISC2 register must be set to '1' before issuing this command. OFFSETCAL must be executed every time there is a change in the PGA gain settings.

     

  • 对啊,只是简单的说了这几句,没说有没有必要,

    但是不知道为什么 测内部的1mv 偏差这么大

  • 楼主,最近我也在用这个芯片采集心电信号。请问你目前有采集到心电信号吗?可以加我扣扣,以后经常交流可以吗1017598227

  • 最近也在使用ADS1191,能否加个QQ,请教请教,谢谢!QQ:121016919

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