报告了自1990年以来通过与量子化霍尔电阻比对考核的国家直流电阻(实物)基准的长期漂移率及偏差。
The drifts and deviations of National DC (artifact) Resistance Standards by comparison with Quantum Hall Resistance (QHR) since 1990 is reported.
利用改进的磁通积分算法，克服了纯积分器直流漂移和初始值问题，消除了一阶低通滤波器的幅值和相位偏差。
The DC drift and initial problems of pure integrator were overcome, and the magnitude and the phase error of one-order low pass filter eliminated by using a novel integration method.
使用一个周期的正弦波曲线模型的滑动拟合法，评价了幅度、频率、直流偏移的抖动，以及相位与理论值之偏差的抖动情况。
By using moving one period sine wave model, the jitters of amplitude, frequency, phase, and offset of sine wave are evaluated.
以三台无刷直流电动机为控制对象，分析基于偏差耦合的多电机同步控制策略。
The main purpose of this paper is to make three brushless DC motors as control object and based on relative coupling strategy to study synchronized control of multi-motor system.
分析了磁偏差调制直流电流检测传感器的工作原理。
The principle of measuring leak current based on magnetism zero-state drift is analyzed.
分析了磁偏差调制直流电流检测传感器的工作原理。
The principle of measuring leak current based on magnetism zero-state drift is analyzed.
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