磁体

It has the capacity of producing 300 tonnes cast Alnico magnets with high performance annually.

公司拥有两个生产基地：年产600吨烧结NdFeB磁体、350吨粘结NdFeB磁体、50吨烧结SmCo磁体的平稀土永磁生产基地和年产300吨高性能Alnico磁体的深圳生产基地。

Take the DARHT magnet for example, the authors analyse the effect of magnetic angle of elevation on axis caused by the parallel movement or rotation of magnetic axis and give a way to improve the precision of magnetic equation .

以DARHT磁体为例分析了磁体轴线平移和旋转等因素对光轴上磁仰角的影响，指出了一条提高磁体安装精度的途径。

Take the DARHT magnet for example, the authors analyse the effect of magnetic angle of elevation on axis caused by the parallel movement or rotation of magnetic axis and give a way to improve the precision of magnetic equa tion .

以DARHT磁体为例分析了磁体轴线平移和旋转等因素对光轴上磁仰角的影响，指出了一条提高磁体安装精度的途径。

It consists mainly of seat plate, right and left side main magnets, double-layer repelling cavity comprising upper and lower magnets, front and back bending magnets, turntable shaft, turntable, magnetic bars and power output wheel.

它主要是由坐板，右、左侧板式主磁体，双层全排斥腔上、下部磁体及前后面折向磁体，转盘轴，转盘，多根条磁体，动力输出轮等组成。

In order to meet the requirement of the Collector ring dipole superconducting magnet of FAIR in the process of operation, meanwhile, and to ensure the heat loads coming from the support structures to be lower than the design demands, the 3D models of support structures have been constructed with CATIA, then the calculation of low-temperature heat-load and the structure analysis have been done with ANSYS, the support structure material, 316LN+G10, is decided according to the heat-load calculation and the structure optimization, these results are necessary for manufacturing the formal magnet.

为保证FAIR收集环(Collector ring-CR)超导二极磁体工作过程中的磁场位形符合设计要求，同时保证由磁体支撑带来的热负荷小于设计要求，用CATIA软件建立了不同结构的磁体支撑3D模型，并用ANSYS有限元分析软件对建立的模型进行了低温热负荷分析和结构分析。通过比较分析的结果和对磁体支撑结构进行的进一步优化，确定了316LN+G10材料的支撑结构，为收集环超导二极磁体工程制造提供了参考。

The system was reassembled using a new 4K GM cryocooler with larger cooling capacities both at the first stage and the second stage. The magnet reached a field of 5. 1T central field. This reassembled system was a cryogen free superconducting magnet system.

用一级和二级制冷量都较大的GM制冷机组成了第二套磁体系统，磁体中心场到了5T，既没有使用液氦，也没有使用液氮，这一套系统是最新式的无液体制冷剂的超导磁体系统。

The Hall position sensor includes permanent magnet and Hall element, and the Hall element has its output voltage varying with the relative position variation of the permanent magnet.

本发明提供一种霍尔位置传感器，包含永磁体和霍尔元件，并且霍尔元件的输出电压随其与永磁体相对位置的变化而变化，所述相对位置的变化方式为，使永磁体与霍尔元件相对表面的重叠部分的面积和/或该重叠部分上各处的气隙长度随着永磁体与霍尔元件之间的相对运动而改变。

Considerating over-all performance of mag nets, it was concluded that the optimal amount of doped-Ga was 0.5wt%. The other was that the grains size distribution of grains was narrow and grain distributed homogeneously as to microstructure of magnets when the amount of doped-Ga was 1 .Owt%;(3 ) In the magnets, there existed not only Nd2Fei4-xGaxB, but also GaNd concerning the Ga-elment form. The GaNd increased the amount of liquid and had favorable function during sintering, so it made for the increase of magnets density and the form of the second phase is good for improving coercivity.

综合考虑磁体的性能，最终得出添加0.5wt％为最佳的Ga添加量；(2)对于Nd_(15)Fe_(78)B_7+Ga系永磁体，当Ga的添加量为1.0wt％时，得到颗粒粒度分布范围窄，颗粒分布较均匀的显微结构；(3)元素Ga在磁体中不但以Nd_2Fe_(14-x)Ga_xB形式存在，而且以GaNd的形式存在，在烧结的过程中，增加了液相的数量，起助烧结的作用，有利于磁体密度的提高，形成第二相有利于矫顽力的提高。

The magnetomechanical modeling of spherical magnet incased in spherical vessel is established. The influence to magnetic force by magnetic conductivity, remnant magnetism and radius of magnet, radius of container and off-centering of magnet is analyzed. The conclusion has universal character.

以球形永磁体和球形容器为对象，推导出永磁体磁浮力模型，分析磁导率、永磁体的剩余磁化强度和永磁体半径、容器半径以及永磁体相对于容器中心位置的位移对磁场力的影响，结论具有一定普遍性。

Firstly, the relationship between the magnetic pole state of active magnetic pole and the running state of passive magnetic pole was analyzed. The electromagnet's four magnetic pole state and switch sequence, which can drive permanent magnet rotate, were ascertained. Secondly, taking one of magnetic pole state NS (N denotes electromagnet's left magnetic pole and S right magnetic pole) as an example, the distribution of space magnetic field was studied. In addition, the mathematical model of space magnetic field was set up based on the magnetic circuit fundamental and using the method of magnetic analysis and modeling. Lastly, the four states' mathematical model of space magnetic field was solved by using the MATLAB.

首先，分析系统主动磁极磁极状态和从动磁极转动状态之间的关系，确定驱动永磁体转动的电磁体4个磁极状态及切换顺序；其次，基于磁路基本原理，通过磁场分析和建模，以电磁体4个磁极状态之一的NS（N表示其左极、S为右极）为例，对电磁体的空间磁场分布进行研究并建立空间磁场数学模型；最后，以MATLAB为平台对4个磁极状态的空间磁场数学模型进行求解，将求解结果与实验数据进行对比。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。