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目前,对于QJ33型万能比例臂这种高准确度仪器的校验,一般采用电位差计补偿法按元件检定或用三次平衡电桥按元件检定的方法。但是,上述校验方法,测量和计算工作量都较大。根据直流电流比较仪电位差计(以下
At present, for the QJ33 universal ratio arm of this high-precision instrument calibration, the general method of using potentiometer compensation method by component verification or by three balanced bridge by component verification method. However, the above verification methods, measurement and calculation workload are large. According to the DC current comparator potentiometer (below