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51问答网 > 5v数字电压表的量程最小分辨率为0.02v是什么意思

5v数字电压表的量程最小分辨率为0.02v是什么意思

2025-03-26 16:55:01

推荐回答（1个）

回答1：

5/0.02=250，最小分辨率为0.02V，0.02V最小分辨的一个数值。用的是8位A/D转换芯片，8位A/D显示数字的范围是0 - 255，把量程范围定在0 -250，一个数字量最小显示量值是0.02V，满量程时0.02*250=5V。

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