【摘要】 找出了以ZX78型电阻箱及ZY4型双桥校验器为主标准器组成的检定装置的各误差源，并对它们进行了定量的误差分析，最后分别计算出该检定装置便携式双桥及单桥的总不确定度，从而验证了该检定装置合符JJG125－86直流电桥检定规程的要求。更多还原

【Abstract】 The error resources of detectors made up of nominal instrments at themain of ZX78 resistance and ZY4 dourble bridge checker are found, the quantitativeanalysis is made. Then all indefinite degrees of portable double and single bridge ofthe detector are catcuIated. Finally the detector is verlfied to meet JJG 125-86 DCelectric bridge detecting regulation.更多还原