查询词典 magnetization current

The magnetization intensity and direction of AlNiCo PM can be controlled by pulses of d-axis stator current vector.

通过定子直轴电流矢量脉冲控制铝镍钴的磁化强弱和方向，使钕铁硼和铝镍钴产生的磁通共同穿过气隙；或者使钕铁硼产生的磁通部分穿过气隙、部分被铝镍钴在转子内部旁路，利用永磁体的记忆能力使永磁气隙主磁通受控。

Based on the Jiles-Atherton model, the dynamic hysteresis loss model of the transformer core considering the classic eddy current loss and abnormal loss is developed, which is suitable for all the reasonable coefficient of reversible magnetization and adopting the flux density as entry variable.

该文在Jiles-Atherton基本磁滞模型的基础上，从能量平衡原理出发，考虑铁心在交流状态下的涡流损耗和异常损耗，建立了合理可逆磁化系数条件下，以磁通密度作为输入量的铁心动态磁滞损耗模型。

For direct magnetization the magnetizing current is passed directly through the part creating a circular magnetic field in the part.

对于直接磁化的磁化电流通过直接通过部分创造一个圆形磁场中的一部分。

The magnetic mechanical engineering technology is a new high-level technology in the current world, which uses the permanent magnetism materials to engage in the research, development and production of the permanent magnetism effect parts, including the magnetization parts, magnetism-droved machinery, magnetoelectricity machinery and so on.

磁机械工程技术是当前世界新兴的高水平的一项学科技术，是应用永磁材料从事磁化器件、磁驱动机械和磁电机械等永磁效应组件的研究、开发、生产；并逐步实现技术产业化、产品社会化的系统工程。

Trigger circuit by adjusting the phase of the trigger pulse to control the on-off thyristor, which can be manually controlled to adjust the output voltage, and then, after step-down transformer can be used to obtain the magnetization of the magnetic low-voltage high-current power supply, mainly by the SCR the main voltage regulator circuit, trigger circuit, such as composition, is a broad application prospect of the exchange regulator controller.

通过调节触发电路的触发脉冲的相位来控制晶闸管的通断，从而控制输出得到可人工调整的电压，再经过降压变压器得到可用于磁化的低压大电流磁化电源，它主要由可控硅调压主电路、触发电路等组成，是一种具有广阔应用前景的交流调压控制器。

The anisotropic bonded NdFeB magnets were prepared by die-upsetting process and the effect of surface residual magnetization of anisotropic bonded magnets which were demagnetized by alternating current demagnetization and heat demagnetization process on the quantity of magnetic powder attracted on the surface was investigated.

采用模压成型方法制备各向异性粘结NdFeB 磁体，并研究了其经交流退磁及热退磁后磁体的表面剩磁大小对磁粉吸附程度的影响。

An over-optimistic assessment in accuracy is often resulted from the magnetization measurement by the current standard methods for the feebly magnetic materials due to ignoring the significant influence of demagnetizing field on the ballistic method.

现有的一些弱磁材料标准测磁方法，忽视了退磁场对冲击法磁化强度测量的重要影响，因而给出了过于乐观的精度估计。

The intensity of the magnets in permanent-magnet motors can increase as the motor size and output power increase. This causes difficulty in manufacture of large scale PM motors and consequently increases the cost. Post-assembly magnetization can be treated as a solution to the above problem, which fabricates the motors before the magnet is magnetized by applying large current impulse on the motor stator windings.

中文摘要由於永磁马达转子磁铁强度，会随著马达尺寸与输出功率增加而增加，导致大型永磁马达在制作上，因磁铁的强磁性造成组装上的困难，且易有铁粉等杂物附著，使得制作成本增加，故有必要使用新的充磁技术或特殊制程解决。

The magnetic capability of the large dimension toroid for application was measured by the pulse magnetization method. When the outer and inner dimensions of the toroid core were 220 and 80mm, the bight was 60 mm, and the section was 4 200mm^2, the pulse width was 3.5~4.0μs, the repelition rate was 50Hz, the primary and second coils were 1 circle, the maximum volt-second product was 0.007Vs and the bias current was 8A to maintain the toroid not saturated.

使用脉冲法对成型的大尺寸磁环动态磁性能进行测量，励磁方式和工作中完全一致，在测量脉冲脉宽3.5~4.0μs，重复频率50Hz，初次线圈均为1匝，外径220mm，内径80mm，高60mm，截面积4 200mm^2时，得到磁环实际能够达到的伏秒数为0.007Vs，此时所需的偏磁电流大小为8A。

It is the key problem for studying the exciting current in the transformer under DC bias magnetization.

在直流偏磁条件下变压器励磁电流是研究变压器直流偏磁特性的关键。

Use nationalization degree and the relationship that commercialize degree, condition of calculable market economy plays scope of optimal and state-owned economy.

利用国有化程度与市场化程度的关系，可计算市场经济条件下最佳国有经济规模。

The kinds of extractant also effected desulfurization rate .

萃取剂对脱硫率的影响也很大，乙二胺的萃取效果优于甲醇的。