查询词典 magnetic field

The operational principles of this device, the calculation method and steps of the magnetic circuit , the magnetic field partition of working air gap,and the calculating of the magnetic circuit with magnetic leakage coefficient method are introduced.

用3块永磁铁组成磁路，制成磁力研磨装置，用于零件的小面积研磨。介绍其工作原理、磁路的计算方法、步骤，以及对工作气隙进行磁场划分，用漏磁系数法计算磁路

The cyclic alternating magnetic field realizes cyclic and dynamic magnetization of the magnetic sample. After the cyclic laser narrow pulse train reacts with the magnetic sample, polarization of transparent lights or reflected lights of the pulse train will change to measure magnetization variation of the magnetic sample.

周期交变磁场使磁样品被周期动态磁化，而周期激光窄脉冲列与磁样品作用后，由于磁光效应，其透射或反射光的偏振态将发生变化，度量磁样品的磁化变化。

Based on the function and reliability, the design principle for thepermanent magnetic bearing in rotating machine is put forward. FailureMode Effect and Criticality Analysis is studied for thepermanent magnetic bearing, and corresponding designs for magneticbearing are made to enhance the reliability. In addition, the main failuremode and failure causes are found by FMECA, it is found that theadditional alternate magnetic field within the machine causing thepermanent magnet to demagnetize is the main failure mode of thepermanent magnetic bearing in rotating machine.

本文提出了基于功能和可靠性的旋转机械永磁轴承的设计原理，对旋转机械永磁轴承进行了失效模式影响及危害度分析，并相应地提出可靠性设计措施，以提高永磁轴承的可靠性，同时通过FMECA找出了影响永磁轴承可靠性的主要失效模式及失效因素。

Rare earth permanent magnet is used widely in components producing strong magnetic field, such as various micro special electric machine, nuclear-magnet resonator, electric device, magnetic separation equipment, magnetic machine, and magnetic therapy appliance of computer, automobile, apparatus, instrument, household electrical appliance, petrochemical, medical care, and aerospace, etc.

中国钢铁—山东冠洲稀土钕铁硼永磁材料广泛应用于计算机、汽车、仪器、仪表、家用电器、石油化工、医疗保健、航空航天等行业中的各种微特电机，核磁振共振设备、电器件、磁分离设备、磁力机械、磁疗器械等需产生强间隙磁场的元器件。

There are various ways to shield static magnetic field. The principles of which come to one: to form a relatively closed space by using high magnetic inductivity material, in which space the magnetic flux runs through side of the shield, and thus the magnetic intensity is reduced.

静磁场屏蔽方式可以有许多方法，其原理都是采用高磁导率材料作为屏蔽体材料，在需要屏蔽的空间内形成一个相对密闭的空间，使得磁通沿着屏蔽体侧壁流过，从而减低屏蔽空间内的磁场强度，以达到屏蔽效果。

The magnetic measurements show a good agreement with our MFM results,further confirming the magnetic domain model proposed.So magnetic field in chemical reactions can be used to control magnetic domains of materials.

磁测量的结果与MFM观测的结果能很好的对应，进一步证实了我们所提出的磁畴模型的合理性，可见利用外磁场可以实现对产物磁畴结构的有效调控。

The paper also discusses the geometric sizes of magnetic path and the choice of magnetic materials,and contrasts the test results from the magnetic field flux density of two kinds of magnetic path and har...

通过对比两种磁路结构的检波器，讨论了磁路的几何尺寸和磁性材料的选用，并比较了这两种磁路的磁通密度及谐波失真的测试结果，说明了在检波器磁路设计中，均匀磁场可以降低输出信号中的谐波失真

Main features:- Hole spacing 2.25mm-operating voltage: 4.5 V to 24 V-switching offset compensation at 62Hz under - over-voltage Protection - VDD-pin Reverse voltage protection - Short circuit protection open-drain output is hot off - working magnetic field range: DC to 10kHz-output goes low with magnetic south pole contacts marked on the package side, while the higher magnetic flux density and area of S1, As S2-all temperature and supply voltage range magnetic parameters on-chip temperature compensation circuitry of the minimum drift - EMC meet DIN40839.

主要特点：–霍尔片间距2.25mm–工作电压： 4.5 V 至 24 V–开关偏移补偿在62Hz下–过电压保护– VDD-pin反向电压保护–短路保护漏极开路输出被热关断–工作磁场范围：直流到10kHz–输出变低用磁场南极接触封装上有标记边，而更高磁通量密度面积S1，如同S2–全温度和供电电压范围下磁参数的片上温度补偿电路的最小漂移– EMC适应DIN40839。

Based on the physical characters that the temporary magnetic material can absorb magnetic force nearby and change the distribution of magnetic field,and in combiniation with structural optimization of the semi-adverse current chest,a new type magnetic separator which can make the magnetic mineral apar has been developed and the pilot test was finished.

摘 要 根据软磁材料在磁场中具有吸收附近磁力线从而改变磁场分布的物理性质，结合半逆流型底箱结构的优化，研制了一种可使磁性矿物产生物理分带的磁选机并完成了半工业试验研究，证明用于选别攀枝花钒钛磁铁矿时比传统磁选机具有明显的优越性。

Magnetic sensors based on semiconductor are also widely used in many areas, such as the measurement of the magnetic field, the read head of magnetic hard disk, the detection of non-magnetic signal, the automotive, contact less control and many ammeters.

基于硅的半导体磁敏传感器广泛应用于测量磁场强度的各种磁场计、读出磁介质上信息的各类磁头以及非磁信号的探测器等。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。