改变励磁电流的大小和方向可以控制直流磁通的大小和方向。
The magnitude and direction of this magnetic flux can be controlled in agreement with the magnitude and direction of the field current.
采用直流磁控反应溅射法，在玻璃和石英基体上制备了TiO2薄膜。
TiO2 thin films were deposited on glass and quartz substrates, respectively, using the direct current reactive magnetron sputtering method.
由图可见，通过导磁机壳的直流磁密随着等效气隙磁密的增加而下降，反之亦然。
As may be seen from the diagram, dc flux going through the back yoke decreases with increasing equivalent gap flux, and vice versa.
本文研讨了高磁导率合金的直流磁特性与交流磁特性之间的差异，可供材料的研制、开发及应用作参考。
This paper studied the difference between DC and AC magnedc properties of high permeability alloys for material research, development and application.
论述了高温直流磁控反应溅射法制备ito透明导电薄膜时氧分压、溅射气压和溅射电流等参数对其光电特性的影响。
The effect on the electrical and optical properties is studied as ITO transparent conductive thin films prepared by DC magnetron reactive sputtering technique with different deposition parameters.
因为两臂的直流电路相等而方向相反，所以在变压器铁心中有效直流磁通是互相抵消的，所以不再需要巨大的直流元件。
Since the DC current on each side is the same, the effective DC in the transformer core is cancelled, so there is no need to provide for a large DC component.
因为包含相对地狭窄的带宽，并且是可能的交流励磁为射频干涉并且提供比较伟大的安全性直流励磁。
Since a relatively narrow bandwidth is involved, it is also likely that ac excitation also offers greater immunity to rf interference than dc excitation.
直流励磁时间和强制换向时间都由一个外部电容设定。
Each period of DC excitation and forced commutation drives is set with an external capacitor.
直流电动机中电枢磁动势的轴线位置是由电刷位置决定的，电刷具有箝位的功能。
In DC motor, the locality of axis of armature MMF was determined by the brush position, here the brush possessed a function of clamping.
然而，为了充分利用昂贵的稀土永磁体，在直流力矩电动机的传统磁结构中，直接用稀土永磁体取代铝镍钴磁钢是不适宜的。
However, to take full advantage of the expensive rare earth magnets, simply replacing the alnico magnets by rare earth ones in traditional magnetic structures of dc torque motors is not adequate.
这两种方式均可以解决传统推挽直流变换器存在的偏磁问题。
These methods all can be used to solve the magnetic aberration hi the conventional push-pull converter.
介绍了一种新型的磁多谐振荡式直流小电流传感器在雷电流测量中应用。
A new weak DC sensor which is used in measurement of lightning current is introduced.
针对直流电动机中电枢磁动势的轴线位置由电刷决定的特征，提出了箝位概念，指出自控变频乃是箝位效应的直接后果。
Aimed at the feature that the locality of axis of the armature MMF is determined by the brush in dc motor, a new concept on clamp is proposed.
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.
NR继电器。长寿命继电器。1表C线圈电压5伏直流。磁密封型。单面稳定。
NR-relay. Long life relay. 1 form C. Coil voltage 5 V DC. Magnetically sealed type. Single side stable.
首先，本文介绍了产生变压器直流偏磁的原因。
Firstly, the reasons of DC magnetic bias on transformer are studied.
最终通过以上结果的分析初步探讨了本文所计算的变压器允许直流偏磁的准则，为工程实践和进一步的理论研究提供了参考。
According to the analysis results, the permission criteria of transformer DC magnetic bias is discussed and supplies reference for engineering practice and theoretical research.
磁粉心具有较高的饱和磁通密度和较好的直流偏磁动态线性。
Powder core has high saturation flux density and excellent motion linearity of DC bias.
如果励磁电流太大，采用直流机励磁则会引起集电环的对数增多。
If the excitation current is too great, adopting DC machine excitation would require more collecting rings.
对于它励直流电动机，励磁线圈由一个单独的电源来励磁。
In the separately excited dc machine, the field winding is excited from a separate source.
NR继电器。长寿命继电器。1表C线圈电压12V直流电源。磁密封型。单面稳定。
NR-relay. Long life relay. 1 form C. Coil voltage 12 V DC. Magnetically sealed type. Single side stable.
采用有限元法计算分析了定子偏心与转子偏心对无刷直流电动机的气隙磁场、定位力矩及单向磁拉力的影响。
The effects of stator and rotor eccentricity on the magnetic field distributions, cogging torque and unbalanced force were calculated in this paper by using finite element method (FEM).
本文分析了导致逆变电源输出变压器直流偏磁的原因。
By analyzing the causes of the flux imbalance in the output transformer of the inverter.
另外，本文还设计了一台电励磁的交直流发电机，电磁设计结果表明，永磁电机在体积、重量、效率方面都很有优势。
The result shows that the permanent magnet generator presents here has a series of advantage in size, weight, and efficiency over the wound-field generator.
本文提出了磁平衡监测方法，设计了基于磁平衡法的直流接地监测系统。
This paper puts forward magnetic balanced inspection method, and designs DC earthing inspection system based on magnetic balanced method.
试验结果表明，该方法能在不增加变压器损耗、温升的条件下有效抑制变压器直流偏磁，试验数据证明了该方法的有效性和正确性。
The experimental results show that the scheme can not increase in transformer loss. The method in this design is proved to be effective and efficient one by the results of experiment.
对传统直流励磁机的励磁系统而言，其带有滑动接触部分的换向器和炭刷等薄弱环节，需要定时检修与维护。
The exciter system of traditional dc exciter has some weaknesses, whose commutators and carbon brushes often need examining, repairing and maintaining timely.
在我国电力系统中，同步发电机的励磁系统主要有直流励磁机励磁系统和半导体励磁系统两种。
Within our countrys power system, synchronous generator excitation system primarily consists in direct current exciter system and semiconductor exciter system.
分析了全桥逆变器功率变压器产生直流偏磁的机理；
The cause of the DC bias of the main transformer in the full bridge inverter has been analyzed.
分析了全桥逆变器功率变压器产生直流偏磁的机理；
The cause of the DC bias of the main transformer in the full bridge inverter has been analyzed.
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