CAJ | 학술논문

提出一种用于高精度交流感应耦合比率臂电桥的自动辅助平衡方法。该方法在原理上对交流电桥的测量精度的影响可忽略，只需简单完成电桥主平衡，即可实现同类型阻抗的精密比较和测量，极大提高了电桥的收敛速度。该方法在为我国新计算电容装置研制的电容电桥中得到应用，电容传递在1592Hz的不确定度指标达到3×10-8(k=1)。
제출일충용우고정도교류감응우합비솔비전교적자동보조평형방법。해방법재원리상대교류전교적측량정도적영향가홀략，지수간단완성전교주평형，즉가실현동류형조항적정밀비교화측량，겁대제고료전교적수렴속도。해방법재위아국신계산전용장치연제적전용전교중득도응용，전용전체재1592Hz적불학정도지표체도3×10-8(k=1)。
An auto auxiliary source balance method is proposed and achieved. The impact of this method on the measurement accuracy ofthe auto source balance circuit is negligible. And the method can greatly improve the convergence speed of the AC bridge′s balance procedure A high precision coaxial AC bridge is constructed at NIM for high precision capacitance transmissiononly by the auto source balance method. The bridge can transmit capacitance with an uncertainty of 3×10-8 (k=1) at 1592Hz.