对测量的基本限制是源电阻中的约翰逊噪声。
The fundamental limit to measurement is Johnson noise in the source resistance.
仪表的输入电阻应当远远大于源的内阻才能满足对测量准确度的要求。
The meter input resistance should be much higher than the source resistance.
基准源及采样电阻均采用恒温措施。
Reference source and sample resistance are all thermostatic.
基准源及采样电阻均采用恒温措施。
Reference source and sample resistance are all thermostatic.
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