公开(公告)号：US20040233027A1

公开(公告)日：2004-11-25

申请号：US10474668

申请日：2003-10-14

Inventor： Eugene l. Oster

IPC: H01F007/02

CPC classification number: H01J37/32623 ,  G21B1/11 ,  G21K1/00 ,  H01J37/3266

Abstract: Techniques for producing and manipulating magnetic fields. The techniques employ the mutual repulsion of magnetic fields to create uniform magnetic fields and to manipulate the uniform magnetic fields. The uniform magnetic field is created between two planar magnets. The planar magnets have cores which describe a closed curve. Like poles of the electromagnets are connected by the cores. When the electromagnets are activated, repulsion between the magnetic fields generated by the electromagnets creates a magnetic field which extends above and below the planes of the planar magnets. If the planar magnets are positioned parallel to each other and aligned so that the magnetic fields generated by the planar magnets repel each other in the space between the planar magnets, the repulsion between the fields generates a resultant field. When the distance between the planar magnets is approximately null the diameter of the closed curve, the resultant field is uniform over a considerable volume of the space between the planar magnets. The uniform field may be manipulated by varying the magnitude and direction of the current provided to the electromagnets. Depending on the number and positions of the electromagnets and how power is supplied to them, the uniform field may be rotated, tilted in the horizontal and/or vertical planes, warped in the horizontal and/or vertical planes, and given gradients in the horizontal and/or vertical planes. The planar magnets may be fitted around the chambers of reactors such as those used for MERIE and the uniform field may be used to manipulate the plasma in the reactor chamber.

Abstract translation: 用于生产和操纵磁场的技术。 这些技术采用磁场的相互排斥来产生均匀的磁场并操纵均匀的磁场。 在两个平面磁体之间产生均匀的磁场。 平面磁体具有描述闭合曲线的芯。 类似于电磁铁的极点通过芯连接。 当电磁铁被激活时，由电磁铁产生的磁场之间的斥力产生在平面磁体的平面上方和下方延伸的磁场。 如果平面磁体彼此平行定位并且对准，使得由平面磁体产生的磁场在平面磁体之间的空间中彼此排斥，则场之间的排斥产生合成场。 当平面磁体之间的距离约为闭合曲线直径的1/2时，所得到的场在平面磁体之间相当大的空间体积内是均匀的。 可以通过改变提供给电磁体的电流的大小和方向来操纵均匀场。 根据电磁铁的数量和位置以及如何提供电力，均匀场可以在水平和/或垂直平面中旋转，在水平和/或垂直平面中倾斜，并且在水平和/或垂直平面中给定渐变 和/或垂直平面。 平面磁体可以安装在诸如用于MERIE的反应器的室之间，并且均匀场可以用于操纵反应器室中的等离子体。

公开(公告)号：US20040193031A1

公开(公告)日：2004-09-30

申请号：US10823017

申请日：2004-04-12

Applicant: Pindi Products, Inc.

Inventor： Milton A. Fuller

IPC: A61B005/05 ,  H01F007/02 ,  A61B017/52

CPC classification number: A61B5/6826 ,  A61B5/05 ,  A61B5/055 ,  A61B5/14532 ,  A61B5/6838 ,  H01F7/0273

Abstract: An apparatus for non-invasive detection and quantitation of analytes in a sample, such as blood glucose employs a novel amplifier that uses high-gauss permanent magnets to permit an Rf signal to be transmitted through the sample. The concentration of the analyte can be determined from the magnitude of the reduction in the amplitude of the Rf signal at a characteristic frequency.

Abstract translation: 用于非侵入性检测和定量样品中分析物（例如血糖）的装置采用新型放大器，其使用高高斯永磁体来允许Rf信号通过样品传输。 分析物的浓度可以根据特征频率下的Rf信号的振幅的降低幅度来确定。

公开(公告)号：US20030146814A1

公开(公告)日：2003-08-07

申请号：US10220731

申请日：2002-12-16

Inventor： Michael Charles Keogh Wiltshire

IPC: H01F007/02

CPC classification number: H01Q15/0013 ,  H01Q15/00 ,  H01Q15/002 ,  H01Q15/148

Abstract: A structure (40) with switchable magnetic properties comprises: an array of capacitive elements (44) in which each capacitive element (44) includes a low resistance conducting path and is such that a magnetic component (H) of electromagnetic radiation (12) lying within a predetermined frequency band induces an electrical current (j) to flow around said path and through said associated element (44). The size of the elements (44) and their spacing (a) apart are selected such as to provide a predetermined permeability (null) in response to said received electromagnetic radiation (12). Each capacitive element (44) comprises a plurality of stacked planar sections (42) each of which comprises at least two concentric spiral conducting members or tracks (46, 48) which are electrically insulated from each other. A switchable permittivity material, such as Barium Strontium Titanate (BST) is provided between the tracks. The magnetic properties of the structure are switched by applying a dc electrical potential between the conducting tracks.

Abstract translation: 具有可切换磁性的结构（40）包括：电容元件（44）的阵列，其中每个电容元件（44）包括低电阻导电路径，并且使得电磁辐射（12）的磁性成分（H）位于 在预定频带内引起电流（j）围绕所述路径流过所述相关元件（44）。 选择元件（44）的尺寸及其间隔（a）分开，以便响应于所述接收的电磁辐射（12）提供预定的磁导率（μ）。 每个电容元件（44）包括多个堆叠的平面部分（42），每个部分包括彼此电绝缘的至少两个同心螺旋导电构件或轨道（46,48）。 在轨道之间提供可切换的介电常数材料，例如钛酸钡钡（BST）。 通过在导电轨道之间施加直流电位来切换结构的磁特性。

公开(公告)号：US20020196115A1

公开(公告)日：2002-12-26

申请号：US10166593

申请日：2002-06-12

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Hirokazu Yamakage ,  Hisanori Niwamoto

IPC: H01F007/02

CPC classification number: H01F7/0294 ,  H01F41/0253 ,  Y10T29/49076

Abstract: The present invention provides magnets having a metallic pin mounted therein with high bond strength and with high reliability and exhibiting good productivity. It also provides magnets in which the bond strength of the metallic pin remains high even at high temperatures or in organic solvents. Specifically, the present invention relates to a magnet having a metallic pin mounted therein without using an adhesive, and this magnet can be made by sintering the magnet and the metallic pin at the same time.

Abstract translation: 本发明提供了一种具有金属销的磁体，其具有高粘合强度和高可靠性并且表现出良好的生产率。 它还提供了即使在高温下或在有机溶剂中金属销的粘合强度仍然很高的磁体。 具体地说，本发明涉及一种在不使用粘合剂的情况下安装有金属销的磁体，并且该磁体可以通过同时烧结磁体和金属销而制成。

公开(公告)号：US20020190828A1

公开(公告)日：2002-12-19

申请号：US09881127

申请日：2001-06-13

Inventor： Yong Lee ,  Joseph Lee

IPC: H01F007/02

CPC classification number: H01F7/0268 ,  H01F7/0273 ,  Y10T29/49076

Abstract: A Neodymium-Iron-Boron permanent magnet which is substantially wider across a first axis than across the perpendicular second axis. The second axis is the axis defining the north and south poles of the magnet. At one of the poles is a permalloy cap which is substantially parallel to the first axis and inhibits the extension of magnetic flux from that pole and encourages instead a deep extension of the magnetic flux from the other pole. An aperture penetrates the magnet through the second axis which is wider at the pole away from the permalloy cap than it is at the pole adjacent to the permalloy cap. The shape of this aperture causes a distortion of the deeply extending magnetic flux lines at the pole away from the permalloy cap to be pinched inward toward the second axis rather than being parallel to it. The magnet thus provides a concentrated magnetic force that extends deeply out of its base so that the magnet can be placed on the exterior of a vessel or conduit with the result that the fluid inside is treated with optimized magnetic force.

Abstract translation: 钕铁硼永磁体，其在第一轴线上比横过垂直第二轴线基本上更宽。 第二轴是定义磁体的北极和南极的轴线。 其中一个极点是坡莫合金盖，其基本上平行于第一轴线并且阻止来自该极的磁通量的延伸，并且鼓励来自另一个极的磁通的深度延伸。 光圈穿过第二轴线，该第二轴线远离坡莫合金盖杆的距离比在坡莫合金盖板附近的极板处更宽。 该孔的形状导致远离坡莫合金盖的极的深度延伸的磁通线的变形被向内朝向第二轴线夹紧，而不是平行于其。 因此，磁体提供了从其底部深深延伸的集中磁力，使得磁体可以放置在容器或管道的外部，结果是内部的流体被优化的磁力处理。

公开(公告)号：US20020140535A1

公开(公告)日：2002-10-03

申请号：US10108500

申请日：2002-03-29

Inventor： Gerald Neuberth

IPC: H01F007/02

CPC classification number: H01F7/0278 ,  G01R33/3873

Abstract: In an arrangement for adjusting the spatial dependence of a magnetic field in a working volume of a main field magnet (19) by means of ferromagnetic field shaping elements (16), the field shaping elements (16) are formed from foils (1, 5, 7, 8) and/or sheet metals (10) having openings (2, 3) whose shape, position and size are selected such that the shape and the amount of the remaining ferromagnetic material produces a desired spatial dependence of the magnetic field in the working volume of the main field magnet for appropriate positioning of the foils (1, 5, 7, 8) and/or sheet metals (10) relative to the working volume of the main field magnet.

Abstract translation: 在通过铁磁场成形元件（16）调整主磁场（19）的工作体积中的磁场的空间依赖性的装置中，场成形元件（16）由箔（1,5）形成 ，7,8）和/或具有开口（2,3）的金属片（10），其形状，位置和尺寸被选择为使得剩余的铁磁材料的形状和量产生磁场的期望的空间依赖性 用于相对于主场磁体的工作体积适当地定位箔（1,5,7,8）和/或金属片（10）的主场磁体的工作容积。

公开(公告)号：US20020113678A1

公开(公告)日：2002-08-22

申请号：US10082715

申请日：2002-02-25

Inventor： Francis M. Creighton

IPC: H01F007/02

CPC classification number: H01F7/0273 ,  A61B17/00 ,  A61B34/73 ,  A61B2034/731 ,  A61N2/00 ,  H01F7/0278 ,  H01F7/0294 ,  H01F13/003 ,  H01F41/028 ,  Y10T29/4902

Abstract: A permanent magnet in which the magnetization direction varies with location to optimize or restrict a magnetic field property in a selected direction at a selected point. The magnetic field property may be, for example, the transverse magnetic field, axial magnetic field, axial gradient of the transverse magnetic field, transverse gradient of the transverse magnetic field, axis gradient of the axial magnetic field, transverse gradient of the axial magnetic field, the product of the transverse magnetic field and the transverse gradient of the transverse magnetic field, the product of the transverse magnetic field and the axial gradient of the transverse magnetic field, the product of the axial magnetic field and the transverse gradient of the axial magnetic field, or the product of the axial magnetic field and the axial gradient of the axial magnetic field. The magnet may be formed of one or more segments in which the magnetization direction varies smoothly and continuously, or the magnet may be formed of a plurality of segments in which the magnetization direction is constant. A method of making and using such magnets is also disclosed.

Abstract translation: 一种永磁体，其中磁化方向随着位置而变化，以在选定的点优化或限制所选方向上的磁场特性。 磁场特性可以是例如横向磁场，轴向磁场，横向磁场的轴向梯度，横向磁场的横向梯度，轴向磁场的轴向梯度，轴向磁场的横向梯度 横向磁场和横向磁场横向梯度的乘积，横向磁场的乘积和横向磁场的轴向梯度，轴向磁场的乘积和轴向磁场的横向梯度 场或轴向磁场和轴向磁场的轴向梯度的乘积。 磁体可以由磁化方向平滑且连续地变化的一个或多个段形成，或者磁体可以由磁化方向恒定的多个段形成。 还公开了制造和使用这种磁体的方法。

公开(公告)号：US20040145436A1

公开(公告)日：2004-07-29

申请号：US10760964

申请日：2004-01-20

Inventor： Carl H. Strom

IPC: H01F007/02

CPC classification number: H01F7/021

Abstract: A unipolar magnetic system has a plurality of external magnetic poles oppositely charged from a plurality of internal magnetic poles forcibly joined together in a unipolar magnet. Included can be a plurality of bipolar magnets juxtaposed forcibly joined together forming a unipolar magnetic solid. The bipolar magnets can be secured to a central nonmagnetic core object forming the unipolar magnetic solid. The plurality of bipolar magnets can include wedge magnets forcibly bound together and secured to nonmagnetic metal core object. The wedge magnets can be secured to the nonmagnetic core metal object by magnetic metal screws. The nonmagnetic core object can be in the form of a cube, polyhedron or other form and the metal can be aluminum, other nonmagnetic metal or other nonmagnetic material. The unipolar magnet can be in the form of a sphere, cube, polyhedron or other form The unipolar magnetic system is applicable to a bi-valved nonmagnetic sphere having radially placed electromagnetic rods wherein the distal ends of the electromagnetic rods line the surface of its hollow cavity creating the internal magnetic field.

Abstract translation: 单极磁体系具有从在单极磁铁强制接合在一起的多个内部磁极相对地带电的多个外部磁极。 包括的多个双极磁体可以强制地并联在一起形成单极磁性固体。 双极磁体可以固定到形成单极磁性固体的中心非磁性芯体上。 多个双极磁体可以包括强制地结合在一起并固定到非磁性金属芯体的楔形磁体。 楔形磁体可以通过磁性金属螺钉固定在非磁性的金属物体上。 非磁性核心物体可以是立方体，多面体或其他形式的形式，金属可以是铝，其它非磁性金属或其它非磁性材料。 单极磁体可以是球体，立方体，多面体或其它形式的形式单极磁体系统适用于具有放射状放置的电磁棒的双阀非磁性球体，其中电磁棒的远端与其空心的表面相对 产生内部磁场的腔。

公开(公告)号：US20040051614A1

公开(公告)日：2004-03-18

申请号：US10432862

申请日：2003-05-28

Inventor： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

IPC: H01F007/02

CPC classification number: B82Y25/00 ,  B22F2998/00 ,  B22F2998/10 ,  C22C33/003 ,  C22C38/002 ,  C22C38/005 ,  C22C38/14 ,  C22C45/02 ,  C22C2202/02 ,  H01F1/0579 ,  H01F1/058 ,  C22C1/0441 ,  B22F9/008 ,  B22F9/04 ,  B22F1/0085

Abstract: A nanocomposite magnet has a composition represented by (Fe1-mTm)100-x-y-z-nQxRyTizMn, where T is at least one of Co and Ni, Q is at least one of B and C, R is at least one rare earth element that always includes at least one of Nd and Pr and optionally includes Dy and/or Tb, and M is at least one element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb. The mole fractions x, y, z, m and n satisfy 10 at %

Abstract translation: 纳米复合磁体具有由（Fe1-mTm）100-xyz-nQxRyTizMn表示的组成，其中T是Co和Ni中的至少一种，Q是B和C中的至少一个，R是至少一种稀土元素，总是 包括Nd和Pr中的至少一种，并且任选地包括Dy和/或Tb，M是选自Al，Si，V，Cr，Mn，Cu，Zn，Ga，Zr，Nb， Mo，Ag，Hf，Ta，W，Pt，Au和Pb。 摩尔分数x，y，z，m和n满足10at％

公开(公告)号：US20030189475A1

公开(公告)日：2003-10-09

申请号：US10118833

申请日：2002-04-09

Applicant: The Electrodyne Company, Inc.

Inventor： Walter Scott Blume

IPC: H01F007/02

CPC classification number: H01F1/059 ,  H01F1/0558 ,  H01F1/0578 ,  H01F1/058

Abstract: A flexible permanent magnet containing atomized, generally spherical rare earth magnet particles bonded in a binder resin including a nitrile rubber and precipitated amorphous silica. The bonded permanent magnet exhibits high mechanical flexibility and elasticity, good magnetic properties, and good heat aging, and the magnet powder may be mixed with the binder resin with little to no risk of combustion. In an exemplary embodiment, a permanent magnet composition includes a nitrile rubber with about 23-37% acrylonitrile content, an ethylene vinyl acetate copolymer, a precipitated amorphous silica, and atomized, generally spherical rare earth magnet particles having a size distribution including a median particle size in the range of about 35-55 nullm with a standard deviation in the range of about 10-30 nullm and less than about 0.1% of the particles having a diameter above about 115 nullm. Bonded permanent magnets of the present invention exhibit a percent ultimate elongation greater than about 100%, and even greater than about 200%, thereby providing at least a 10-fold improvement in elasticity concurrently with good magnetic properties.

Abstract translation: 一种柔性永磁体，其含有雾化的，通常为球形的稀土磁体颗粒，其结合在包含丁腈橡胶和沉淀的无定形二氧化硅的粘合剂树脂中。 粘结永久磁铁显示出高的机械弹性和弹性，良好的磁性能和良好的热老化性，并且磁粉可以与粘合剂树脂混合，几乎没有燃烧风险。 在一个示例性实施方案中，永磁体组合物包括具有约23-37％丙烯腈含量的丁腈橡胶，乙烯 - 乙酸乙烯酯共聚物，沉淀的无定形二氧化硅和具有包括中值粒子的尺寸分布的通常为球形的稀土磁体颗粒 尺寸在约35-55μm的范围内，标准偏差在约10-30μm的范围内，小于约0.1％的直径大于约115μm的颗粒。 本发明的粘结永磁体显示出大于约100％，甚至大于约200％的极限伸长百分比，从而与良好的磁性能同时提供至少10倍的弹性改进。