磁体

It was found that after high vacuum annealing , the density, maximum energy product and remanence of magnets become lower.

为研究回火过程中真空度对烧结NdFeB磁体显微结构及磁性能的影响，对烧结态磁体采用不同的真空度进行回火。

A magnet consisting essentially of a coil of insulated ''.'wire'.'' wrapped around a soft iron ''.

电磁体一种磁体，主要由绝缘线圈缠绕的一个软铁''。

Third, The author analyzed the shimming method of the existing magnet system and programmed it. Because the base field homogeneity of the open magnet is worse and only passive shimming is available, it is necessary to study more effective shimming algorithm. The ordinary shimming method is based on the disintegration of the magnetic field using spherical harmonics. It is so tedious that involved in large scaled non-linear equations.

再次，详细分析了现有磁体系统的匀场方法，并通过编程运算，发现在开放型磁体这一特殊情况下，由于基场均匀度差和只能使用水磁材料垫补进行匀场等原因，基于对磁场分布用球谐函数分解并消去球谐函数高次项的常规匀场方法在实现上相当繁琐，牵涉到大型非线性方程组的求解，所以必须采用更有效的匀场算法。

By means of analytical and numerical calculations,the spin reorientationtransitions in sublattice magnets(including one-sublattice and two-sublattice magnets)and the spin configurations in magnetic films have been systematically studied.

本文借助于解析求解和数值计算的方法，系统地研究了亚点阵磁体(包括单亚点阵和双亚点阵磁体)中的自旋再取向转变和磁性薄膜系统中的自旋组态。

New ideas,new structures and new technologies have been used for the design, manufacture and installment of wiggler in order to achieve the coincidence of the central level planes of magnets and beam vacuum tube.

采用新思想、新结构、新工艺设计和加工超导扭摆磁铁，并在安装过程中确保磁体的准直，实现了磁体的磁中心水平面与束流真空管的中心水平面的重合。

It takes a cylindrical NdFeB multipole permanent magnet composed of several neighboring tegular magnets magnetized anisotropically along radial direction as exterior actuator, and a magnet with the same structure embedded inside the robot body as the inner actuator. The robot screws forward inside pipe under the action between spiral rib on the exterior surface of robot body and fluid dynamic pressure when robot rotates by magnetic torque, which is generated by magneto-mechanical coupling from rotating exterior actuator to inner one.

它以相邻径向异向磁化瓦状多磁极圆筒形NdFeB永磁体为外驱动器，以机器人内嵌同结构的NdFeB永磁体为内驱动器，外驱动器旋转时产生旋转磁场，通过磁机耦合作用于内嵌驱动器形成机器人驱动力矩，在本体外表面螺纹与流体动压力的作用下，实现机器人在管道内的在线旋进。

Last year out put of neodymium ferroboron sintered magnetic mate rials in our country was 4,000 tons, ranking a leading position in the world. Output of bond magnet materi als was less than 100 tons, far less than that in Japan and America.

去年我国钕铁硼烧结磁体产量接近4000吨，居世界前列，而粘结钕铁硼磁体由于技术设备落后，产量不及百吨，远远低于日、美等发达国家。

A non-contact drive and control method on capsule type micro robot was proposed, in which exterior permanent magnet driver was composed of multiple tegular magnetic poles magnetized in radial direction, while interior permanent magnet driver built in robot was in the same structure as exterior one.

摘要提出一种以径向磁化的瓦状多磁极组成的圆筒式永磁体为外驱动器，以嵌入机器人本体内与外驱动器同磁极结构的永磁体为内驱动器的非接触式驱动控制方案。

A non-contact drive and control method on capsule type micro robot was proposed, in which exterior permanent magnet driver was composed of multiple tegular magnetic poles magnetized in radial direction, while interior permanent magnet driver built in robo

摘要提出一种以径向磁化的瓦状多磁极组成的圆筒式永磁体为外驱动器，以嵌入机器人本体内与外驱动器同磁极结构的永磁体为内驱动器的非接触式驱动控制方案。

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。

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。