1·Quantitative Determinding the distribution of magnetic field of permanent magnet brushless d. c. motor, is very important to analyze its properties.
永磁无刷直流电动机磁场分布的定量确定对电机性能的预测极为重要。
2·D. C. mutual inductor was used in measuring and close-loop control of the exciting current of new high-gradient high-intensity magnetic separator and achieved satisfactory results.
在新型高梯度强磁设备中，采用直流电流互感器对其激磁电流进行测量与闭环控制可获得满意的效果。
3·This paper presents a method of measuring heavy d. c. current and energy in the rectifier system with the magnetic potentiometer.
本文提出了采用磁位计测量整流系统直流大电流和电能的方法。
4·Magnetic, direct d. c. drive built for continuous, maintenance free operation.
直接磁力驱动技术，免维护，长期连续运转。