高精度数字多用表直流电压的校准

摘要

在校准高精度数字多用表直流电压时，为有效减小测量不确定度，可采用直流参考电压和直流分压器作测量标准，使测量不确定度最大程度满足被校仪器和所使用测量标准之间的3倍关系。%During the DC voltage calibration of high-precision digital multimeter, for effectively reducing the measurement uncertainty purpose, DC reference voltage and DC voltage divider can be used as measurement standard, so as to make the measurement uncertainty greatly meets the 3 times requirement of the calibrated instruments and the chosen measurement standard.