bias magnetic field

Combined with the inductor core loss models under sine wave excitation, the influences of DC bias magnetic field and rectangular wave excitation on core loss are studied.

结合正弦波激励下的电感磁损模型，研究了直流偏置磁场以及矩形波激励这两种情况对磁损的影响。

互联网摘选

influence of static bias magnetic field on the domain wall length of the three

直流偏磁场对三类硬磁畴畴壁长度的影响

互联网摘选

Influence of the static bias magnetic field on the length of the second kind of dumbbell domains

直流偏磁场对第二类哑玲畴长度的影响

互联网摘选

use the volt-ampere method and measure the insertion loss of the coil inductance to obtain the curves of h~ μ r and f~ μ r of ferrite in bias magnetic field.

用插入损耗法和伏安法得出偏磁状态下的铁氧体磁芯的H～μr和f～μr曲线。

互联网摘选

theory of magnetostatic wave propagation and magnetooptic bragg diffraction in yig ggg waveguide under nonuniform bias magnetic field

不均匀磁场中的静磁波传播和导波光衍射理论

互联网摘选

And that the insertion loss can be decreased under appropriately inclined bias magnetic field, so that the diffraction effect of guided optical waves in MSW-based Bragg cells is also enhanced.

适当倾斜偏置磁场可降低静磁波的插入损耗，从而可增强静磁波对导波光的衍射效应。

互联网摘选

An experimental study on the displacement output characteristics for the designed actuator is carried out with bias magnetic field and without bias magnetic field.

利用所研制的致动器，在有偏置磁场和无偏置磁场情况下，对致动器的动态输出位移特性进行了实验研究。

互联网摘选

magnetooptic effects and properties of magnetostatic wave propagation in yig ggg waveguide under inclined bias magnetic field

斜向静磁场中的薄膜磁光效应和静磁波传播特性

互联网摘选

Therefore, the magnetostrictive force model was derived, and the effects of the set static bias magnetic field and alterative current magnetic field on the magnetostrictive force was analyzed systematically.

为此，本学位论文还理论研究了磁致伸缩力模型，系统分析了磁致伸缩力与静态偏置磁场和交变磁场之间存在的作用关系。

互联网摘选

Research on Finite Element Simulation in Bias Magnetic Field of the Magnetostrictive Sensor Used for Steel Strands

钢绞线用磁致伸缩传感器偏置磁场的有限元分析

互联网摘选

The experiments of the stress and magnetic induction under different bias magnetic fields are carried out, the results show that the magnetic induction is maximal when the bias magnetic field is 5kA/ m.2.

进行了一定偏置磁场下外应力和磁感应强度的实验研究，实验结果表明偏置磁场为5kA/m时，磁感应强度最大。

互联网摘选

The relationship between the high peak power junction circulator and the bias magnetic field is described and a method to improve the temperature characteristic of this circulator is given.

阐述高功率结式环行器的温度特性与偏置磁场的内在联系，给出提高温度特性的方法。

互联网摘选

But, with the bias magnetic field increasing and saturation, the magnetostrictive terms will make no contributions to the ultrasonic generation and the Lorentz force becomes the only exciting mechanism.

但是，随着偏置磁场的逐渐增强而使材料达到磁化饱和时，磁致伸缩逐渐消失，对产生超声不再有贡献作用，洛伦兹力变成是激发超声的惟一原因。

互联网摘选

Then, the finite difference method is employed to get numerical solution of quantum dynamic equations of superconducting quantum interference device at the static magnetic field bias and offset alternating magnetic field respectively.

本文分别推导了量子干涉仪的经典动力学方程及其量子化的量子动力学方程；并利用有限差分法求解了静磁场偏置和交变磁场偏置的超导量子干涉仪量子动力学方程的数值解。

互联网摘选

Electromagnetic acoustic transducer ( EMAT) Static bias magnetic field Permanent magnet;

电磁超声换能器；静态偏置磁场；永磁体；

互联网摘选

Bearingless motor make the rotating magnetic field of itself as the bias magnetic field, so magnetic power greatly reduced, with the advantage of high quality energy-saving.

由于该电机磁悬浮是以电动机本身的旋转磁场为偏置磁场，所以磁悬浮功耗较小，具有节能质优的特点。

互联网摘选

the results obtained can be applied to analyze how to improve the diffraction performance of the new msw-based magnetooptic bragg cells by inclined bias magnetic field.

所得结论可用于分析倾斜磁场在改善基于静磁波的新型磁光Bragg器件衍射性能方面所起的作用。

互联网摘选

the amorphous alloy cores having lower inductance exhibit a large ability against direct bias magnetic field and the good constant inductance property.

非晶合金铁芯具有较低的电感，很强的抗直流偏磁场能力和良好的恒电感特性。

互联网摘选

Analysis on Nonuniform Bias Magnetic Field of Magneto-optic Bragg Cells

磁光Bragg器件的不均匀偏置磁场分析

互联网摘选

In magneto-optic ( MO) film waveguides, the interaction between guided-optical waves ( GOWs) and magnetostatic waves ( MSWs) excited by the RF signal within microstrip line under external bias magnetic field may lead to the Bragg diffraction effect and mode conversion of the GOWs.

在磁光薄膜波导中，在外加偏置磁场作用下，微波信号激发的静磁波与入射导波光作用会引起导波光的Bragg衍射效应并发生模式转换。

互联网摘选

Magnetostatic Wave Propagation Characteristics under Normal Nonuniform Bias Magnetic Field

垂直不均匀磁场中静磁波的传播特性

互联网摘选

The elastic guided waves are generated by application of the static bias magnetic field and the dynamic magnetic field which is induced by the alternating current passing the exciting coil, and the elastic guided wave displacement formula is derived by its equation of motion in the steel pipe.

在静态偏置磁场和通过传感器激励线圈交变电流形成的交变磁场作用下，管道中产生弹性导波，由弹性导波运动方程，推导其位移表达式，由位移求出应变。

互联网摘选

There are no double frequency phenomena between the output displacement and input current with bias magnetic field, and double frequency phenomena without bias magnetic field.

当驱动磁场频率小于200Hz时，有偏置磁场时致动器的输出位移与输入电流之间无倍频现象，无偏置磁场时有倍频现象。

互联网摘选

an exploratory study on a new type dc-bias magnetic field auto-tracing petersen coil

一种新型直流偏磁式自动跟踪消弧线圈的探讨

互联网摘选

The primary contents and original contributions of this thesis are as follows: ( 1) In view of the problems of magnetic bearing, a hybrid active magnetic bearing system is proposed by a permanent magnet generate static bias magnetic field and electromagnets provide the control magnetic field.

针对目前电磁轴承中存在的问题，提出了利用永久磁铁提供偏置磁场、电磁铁提供控制磁场的混合式主动磁悬浮轴承系统。

互联网摘选

The conclusion may help to appropriately design the bias magnetic field, and as a result the diffraction performance of the MSW based MO Bragg cells can be improved.

该结论对适当设计磁光Bragg器件的偏置磁场，提高其衍射性能等方面有指导作用。

互联网摘选

The generation and propagation characteristics of magnetostatic forward volume waves ( MSFVWs) under nonuniform bias magnetic field and the Bragg diffraction efficiency of GOWs with the MSFVWs are theoretically studied in this paper.

本论文主要从理论上研究不均匀场中静磁正向体波（MSFVW）的激发与传播特性，以及不均匀偏置磁场在提高静磁波对导波光的Bragg衍射效率方面所起的作用。

互联网摘选