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关于运放测试电阻值的使用问题

我想用运放的精典接法测试电阻值,RX为待测电阻,阻值范围从0.001欧姆至10^9欧姆,Rref电阻分别对应选用1,1000,10^6,10^9,Vs为给定的电压源,Vm为实际测试值,想咨询一下各位大神是否可行。