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Using Feedback Servo Mechanism to Scale-up the Measurement Range on the Shift by Hore Sensor [PDF]
, 2001 霍尔器件可用于微位移测量 ,但通常只能测 1mm左右的位移 ,并在实用时要设计复杂的磁路以保证在测量范围内梯度磁场为均匀的。本文采用反馈随动机构带动霍尔传感器跟踪被测体的位移 ,从而扩大了测量范围 ,且不需要在测量中保持均匀梯度磁场Hore part may be used in measuring tiny shift,but in practice,a complicated magnetic circuit should be designed to assure the uniform ...
洪兆祥, 陈文芗
core
Giant Tunability of Individual Magnetic Skyrmion Size via an Oscillating Local Magnetic Field
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Magnetic skyrmions hold great promise as memory and computing elements in future spintronic devices. Despite the demonstration of various devices, techniques for addressable and high‐precision manipulation of individual skyrmions remain scarce.
Cai‐Hong Xie +13 more
wiley +1 more source
Dianci bileiqi, 2016 铁磁谐振是电力系统中的一种常见现象,铁路应用的电磁式电压互感器和机车上的电容、电感等元件组成谐振回路,也会引发铁磁谐振。铁磁谐振产生的过电压和过电流严重影响电力系统和铁路机车的正常运行。以动车组过分相过程为例分析电压互感器铁磁谐振,利用Matlab仿真软件对过分相过程及抑制方法进行建模仿真,并提出一种新的方法可有效地抑制电力机车分相区铁磁振荡的过电压和过电流,提高了电力机车运行的安全稳定性,最后总结当前抑制过分相过电压的方法。
律方成, 韩芳, 汪佛池, 贾步超
doaj
40.5 kV/50 kA真空开关用双层线圈式快速斥力机构驱动技术的仿真研究
Gaoya dianqi, 2023 对于高电压大开断容量的真空断路器，为了实现运动机构在长开距下的快速驱动，文中提出一种双层线圈式快速斥力机构来产生更大的电磁斥力，建立仿真模型模拟其运动特性。研究了金属盘厚度、线圈内径、线圈匝数和初始间隙等参数对快速电磁斥力机构运动特性的影响，结果表明：仿真结果与实验结果比较吻合，得出了一般性的设计指导原则。双层线圈式快速斥力机构能够快速动作，满足故障限流器快速开断电路的要求。分闸期间电磁排斥的上升时间非常短，下降时间相对较长，并且电磁排斥力的峰值很大。在此基础上，设计了一种新型排斥线圈放电电路 ...
王立军 +9 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Fluxgate sensors with Co‐rich amorphous microwires, widely used for their low noise in magnetic field measurements, encounter significant challenges in high‐temperature environments such as well drilling and geological exploration. Prolonged thermal aging degrades the performance of Co‐rich amorphous microwires, resulting in increased noise ...
Lining Pan +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Polycrystalline SnSe thin film materials have gained increasing attention as a promising solution for fabricating microscale, flexible, self‐powered electronic components in the field of thermoelectric (TE) materials and devices. However, it is still a great challenge to simultaneously achieve preferred crystal orientation and optimize carrier
Wenxia Li +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Although magnetic carbon materials possess significant potential in the field of electromagnetic wave absorption (EWA) due to the synergistic effect of multiple attenuation mechanisms, the currently reported magnetic carbon EWA materials face some challenges, such as high cost, low yield, and easy agglomeration of the magnetic component ...
Bo Jiang +9 more
wiley +1 more source
Gaoya dianqi, 2022 作为快速机械开关核心的斥力机构需在高速运动的斥力盘到达终点前及时介入进行缓冲降速。文中基于有限元分析法在快速斥力机构二维模型的基础上对电容放电时间、出力峰值与持续时间的影响因素进行研究与电磁缓冲仿真，仿真表明在电容能量相同且缩减线圈匝数条件下，电流峰值增加1.63 k A，峰值出力增加50.41 kN。根据仿真结果提出采用出力峰值高，出力时间缩短的电磁缓冲方案对用于缓冲的电磁线圈结构进行改进并在现有平台试验验证，通过传感器可知行程时间满足且实测弹跳距离1.2 mm，合闸电阻25.3 mΩ ...
姚文彬 +4 more
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