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在A/D转换器的位数一定时,通过改变A/D转换器的基准电压来提高被测输入量分辨率的基本思想,给出了相应的硬件电路和软件框图.
A / D converter in a fixed number of bits, by changing the A / D converter reference voltage to improve the resolution of the measured input basic idea, given the corresponding hardware circuit and software block diagram.