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NI LabVIEW,CVI,数据采集等产品讨论区

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关于NI采集问题

使用数据采集卡在labview采集电压电流时,需要考虑BNC线的匹配阻抗问题吗?电表实测电压零点零几伏特,通过示波器探针(×10或100衰减)采集到的电压值增大数十倍?还有采集到的波形受BNC线影响很大,放置线时弯曲形状不一样,采集到的稳定值就不一样,有质量好的线推荐吗?

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