This paper introduce in detail the principle of the calibration of resistance box by method of direct current digital voltage meter, mathematics model and the way of uncertainty evaluation.
详细介绍了用直流数字电压表法校准电阻箱的原理、数学模型及测量不确定度评定方法。
BBT owns mature LED production lines, equipped with integrating sphere, aging racks, withstand voltage tester, laser marker, digital power meter, insulation resistance tester, etc.
BBT拥有成熟的LED生产线，配有积分球、老化架、耐压测试仪、激光标记、数字功率计、绝缘电阻测试仪，等。
BBT owns mature LED production lines, equipped with integrating sphere, aging racks, withstand voltage tester, laser marker, digital power meter, insulation resistance tester, etc.
BBT拥有成熟的LED生产线，配有积分球、老化架、耐压测试仪、激光标记、数字功率计、绝缘电阻测试仪，等。
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