磁场系统

A control system of bearingless induction motor based on torque winding air gap field oriented vector control is accomplished.

实现了一种基于转矩绕组气隙磁场定向控制的无轴承异步电机控制系统。

MAIN OUTCOME MEASURES: The exosyndrome of magnetic fluid was observed by transmission electron microscope and PE thermal analysis system, and in vitro heating test was used under the high-frequency alternative magnetic field.

主要观察指标：运用透射电镜和PE热分析系统对磁流体进行表征，在高频交变磁场下进行体外加热试验。

On the basis of the dispersion relation, we investigated the properties of nonlinear surface waves. It is shown that there exist backward surface waves, with the phase velocity and group velocity opposite in direction. For transverse electric waves, the nonlinear wave equation is transformed into Bernoulli equation, and the exact solutions of magnetic fields are obtained.

在色散关系的基础上研究了非线性旋磁表面波的频率特性，揭示了该系统能激发后向表面波，其群速度与相速度反向；将反铁磁晶体中TE表面波满足的非线性波动方程变形为伯努利方程，用反函数形式给出了表面波磁场的精确解。

However, the exchange bias field is influenced by the magnitude andthe direction of the stress, the magnitude of biquadratic coupling field, and the angleof the ferromagnetic and antiferromagnetic easy axes.

结果表明交换偏置场依赖于外磁场的方向，而与其大小无关；此外应力场的大小和方向，双二次耦合场的大小以及铁磁和反铁磁易轴间夹角均对系统的交换偏置场有影响。

The results show that, in the case that workpiece is at rest, the parameters and discharging current of the discharge circuit can be calculated easily and accurately by the preset-frequency method, so the problem of calculating the parameters of discharge circuit can be solved fundamentally.

本文对用园柱加工线圈胀形管坯的电磁成形过程进行了较深入的理论分析和大量的实验研究，重点研究了放电回路的放电过程、加工线圈和毛坯系统中脉冲磁场的磁感应强度及分布和管坯在脉冲电磁力作用下的变形过程。

In this paper, under the condition of systematic discussing the endangerment of waste water including phenol ,the present treatment method, the mechanism of photocatalytic of TiO2 semiconductor and the reaction of magnetic chymistry, a new method of taking off phenol is proposed:photocatalytic degradation of phenol by TiO2 coupling with magnetic field.

本文在系统的论述了含酚废水的危害及其处理技术、半导体TiO2光催化和磁化学反应的机理的基础之上，提出了磁场-TiO2光催化耦合降解水中苯酚的新方法。

Having elucidated the principles of magnetic stimulation, a macro model of magnetic stimulation of excitable tissue is constructed and a method for systematically computing the magnetic field and the electric field induced by circular coil and 8-shaped coil is put forward.

本文在阐明磁刺激基本原理后，建立了磁刺激可兴奋性组织的宏观模型。系统地推导出圆形、8字形线圈磁场及产生的感应电场的计算方法。

The change and the distribution of magnetic field in magnetic core are described with system state equations of magnetic switch and Jiles-Atherton model so that whole operation of magnetic switch and its application circuit can be obtained, meanwhile total loss, eddy current loss and magnetic hysteresis loss of magnetic switch can be calculated.

利用磁开关的系统状态方程和Jiles-Atherton磁滞回线模型描述磁芯中磁场的变化和分布，从而得到磁开关及其应用电路的整体工作特性，同时计算出磁开关的总损耗、涡流损耗和磁滞损耗。

The ship electric propulsion system that we are going to discuss consists of the following parts: six-phase double Y winding shifted by 30°synchronous motor, diode clamped three-level inverter, fixed pitch propeller and control installment of electric propulsion systems based on air-gap-field orientation vector control.

本论文所研究的船舶电力推进系统各个组成部分分别是：双Y移30°六相电励磁同步电动机、二极管嵌位式三电平逆变器、定距螺旋桨船舶推进器和采用基于气隙磁场定向矢量控制策略的电力推进系统控制装置。

The Rapid North-Seeking and Orientation-Measuring system is a kind of self-contained and independent position indicating system without relying on any outside information. It can not be interfered by the environment such as magnetic field. It behaved premium properties under the condition of either high or low temperature.

快速寻北和方位测量系统工作时不依赖外界信息，不会受到磁场物质等的环境干扰，在高低温的环境下表现了优越的性能，是一种自主式的方位指示系统。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。