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万用(Uersatile)比例仪器的准确度直接依赖于公共点结的设计和调节,所述仪器的结的传递电阻*小于10~(-8)欧。这个传递电阻是引起在小于1/10~7比例时最坏情况下的不确定度的原因。图2是一个万用比例仪器的简图。它由一
The accuracy of a Uersatile proportional instrument relies directly on the design and regulation of the common node, whose transfer resistance * is less than 10 -8 Ω. This transfer resistance is the cause of the worst-case uncertainty at less than 1/10 to 7 ratios. Figure 2 is a simplified diagram of a universal ratio instrument. It consists of one