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1.发明授权
公开(公告)号：US4985072A
公开(公告)日：1991-01-15
申请号：US248286
申请日：1988-09-22
申请人： Masashi Sahashi , Hiromi Niu , Koichiro Inomata
发明人： Masashi Sahashi , Hiromi Niu , Koichiro Inomata
CPC分类号： C22C1/0441 , B22F1/025 , H01F1/012
摘要： The polycrystalline magnetic substance for magnetic refrigeration in or gas refrigeration accordance with the present invention comprises a plurality of magnetic alloy fine crystalline powders that include at least one kind of rare-earth element selected from the group of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb, with the remainder metal consisting substantially of 2 kinds selected from Al, Ni, Co, and Fe, and a metallic binder which forms a compact together with the fine crystalline particles, where the abundance ratio of the metallic binder in the compact is 1 to 80% by volume.
摘要翻译： 根据本发明的用于磁致冷或气体制冷的多晶磁性物质包括多种磁性合金微细粉末，其包括选自Y，La，Ce，Pr，Nd中的至少一种稀土元素 其余的金属基本上由选自Al，Ni，Co和Fe的2种组成，金属粘合剂形成紧凑型 以及细小结晶粒子，其中压坯中的金属粘合剂的丰度比为1〜80体积％。
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公开(公告)号：US4975213A
公开(公告)日：1990-12-04
申请号：US294124
申请日：1989-01-06
CPC分类号： H01F1/0578 , C22C1/0441
摘要： In a method for producing a resin-bonded rare earth-iron-boron magnet, a powder is subjected to a heat-treatment below its melting point. The powder can be either: (1) a mixture of both: (a) a powder of a rare earth-iron-boron magnetic alloy comprising about 8 to about 30 atomic percent of R, which stands for at least one selected from the group of Y (yttrium) and rare earth elements, about 2 to about 28 atomic precent of B(boron), and at least 50 atomic percent of Fe(iron) and (b) at least one of the group consisting of R, R-oxides, which are oxides of R, and R-compound, which are the compounds consisting essentially of more than 30 atomic percent of R and the balance substantially of at least one of Fe and Co; or (2) a rare earth-iron-boron magnetic alloy comprising about 8 to about 30 atomic percent of R, about 2 to about 28 atomic percent of B, about 0.1 to about 13 atomic percent of Ga, and at least 50 atomic percent of Fe. The resultant heat-treatment powder is then bonded with a resin. The present invention also includes a magnet such as might be made by such a method.
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3.发明授权Torque sensor for detecting a shaft torque and an electric machine in which the torque sensor is mounted 失效用于检测轴扭矩的扭矩传感器和安装扭矩传感器的电机
公开(公告)号：US4750371A
公开(公告)日：1988-06-14
申请号：US913317
申请日：1986-09-30
IPC分类号： G01L3/10
摘要： A torque sensor of noncontact type, by which can be stably measured the torque of a shaft with a sufficient S/N ratio under the influence of external magnetic noise, such as an induction magnetic flux which is produced in an induction motor, and which can be readily disposed in a comparatively small space. When provided on an induction motor, the torque sensor is mounted on the induction motor in noncontacting relationship. The torque sensor detects the torque of the shaft and includes a pair of magnetic material members provided on respective circumferential portions of the peripheral surface of a shaft. A pair of magnetic detectors are disposed at opposite locations at which external magnetic fields having opposite phase exist. The detectors detect the variation of the magnetic characteristics of the magnetic materials, and a signal processing circuit produces a mean value of output signals obtained from the magnetic detectors.
摘要翻译： 一种非接触式的转矩传感器，其可以在外部磁噪声（例如感应电动机中产生的感应磁通）的影响下稳定地测量具有足够的S / N比的轴的转矩，并且可以 容易地设置在相对较小的空间中。 当设置在感应电动机上时，转矩传感器以非接触关系安装在感应电动机上。 转矩传感器检测轴的转矩，并且包括设置在轴的周面的相应周向部分上的一对磁性材料构件。 一对磁性检测器设置在具有相反相位的外部磁场的相对位置处。 检测器检测磁性材料的磁特性的变化，并且信号处理电路产生从磁性检测器获得的输出信号的平均值。
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公开(公告)号：US4578125A
公开(公告)日：1986-03-25
申请号：US392593
申请日：1982-06-28
CPC分类号： C22C19/07 , H01F1/0557
摘要： Disclosed is a comprising a powdered alloy composed of 23 to about 29% by weight of samarium, 0.2 to about 7% by weight of titanium, 3 to about 9% by weight of copper, 10 to about 25% by weight of iron, and the balance of cobalt principally; said powdered alloy being sintered to obtain a sintered body, followed by(a) annealing the sintered body at a cooling rate of not more than 5.degree. C./min from an annealing-initiating temperature of from 600.degree. to 900.degree. C., or(b) subjecting the sintered body to a multi-stepwise aging processing initiated from a higher temperature to a lower temperature within the temperature range of from 350.degree. to 900.degree. C.The magnet is excellent in all the magnetic properties such as residual magnetic flux density, coercive force and maximum energy product, and also excellent in antioxidation property.
摘要翻译： 公开了一种粉末状合金，其包含23至29重量％的钐，0.2至约7重量％的钛，3至约9重量％的铜，10至约25重量％的铁以及 钴的余量主要为 所述粉末状合金被烧结以获得烧结体，然后（a）从600℃至900℃的退火起始温度以不超过5℃/分钟的冷却速率对烧结体进行退火， 或（b）使烧结体在350〜900℃的温度范围内从较高的温度开始进行多步骤老化处理。该磁体具有优异的磁性能，例如残余磁性 磁通密度，矫顽力和最大能量乘积，抗氧化性也优异。
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公开(公告)号：US4762008A
公开(公告)日：1988-08-09
申请号：US31279
申请日：1987-03-30
IPC分类号： G01L3/10
摘要： A torque detecting apparatus utilizing a magnetoelastic effect comprising one or more pairs of thin magnetic metal strips affixed to a torque-transmitting shaft subjected to torque detection and having magnetic anisotropy induced in a predetermined direction, and one or more pairs of detecting cores paired with the above one or more pairs of thin magnetic metal strips, fixed in contact with the thin magnetic metal strips, each of the cores of the one or more pairs of detecting cores having a detecting coil wound therearound, In one embodiment, the torque detecting apparatus utilizes a magnetoelastic effect of thin magnetic metal strip wherein the absolute value of saturated magnetostriction constant .lambda.s of the thin magnetic metal strip is less than 1.times.10.sup.-6.
摘要翻译： 一种利用磁弹性效应的扭矩检测装置，其特征在于，包括一对或多对固定在转矩检测用的转矩传递轴上并具有沿预定方向感应的磁各向异性的薄磁性金属条，以及一对或多对检测芯， 在与薄磁性金属带接触固定的一对或多对薄磁性金属带之上，一对或多对检测芯中的每个芯具有卷绕在其上的检测线圈。在一个实施例中，扭矩检测装置利用 薄磁性金属带的磁弹性效应，其中薄磁性金属带的饱和磁致伸缩常数λs的绝对值小于1×10 -6。
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公开(公告)号：US4627298A
公开(公告)日：1986-12-09
申请号：US643703
申请日：1984-08-24
IPC分类号： G01L3/10
摘要： In a torque sensor of a noncontact type for sensing a rotary torque applied to a shaft, a magnetic ribbon of a film shape formed of a magnetic material and applied in advance with an induced magnetic anisotropy in the direction of an angle .theta. along the circumference of a shaft is bonded to the shaft along its circumference. A U-shaped first core member having end faces opposite to the ribbons is provided in the vicinity of the shaft. An exciting coil for producing a magnetic flux and a detecting coil are wound around the core member, and the magnetic flux produced by the exciting coil and introduced through the ribbon to the core member is detected by the detecting coil. When an exciting current of a predetermined frequency is supplied from an oscillator to the exciting coil to produce a magnetic flux, an output signal is generated from the detecting coil and is measured by a voltmeter.
摘要翻译： 在用于感测施加到轴上的旋转扭矩的非接触型扭矩传感器中，由磁性材料形成的膜状磁带，并且沿着沿着圆周方向的角度θ的方向预先施加感应磁各向异性 轴沿其圆周结合到轴上。 具有与带相反的端面的U形第一芯构件设置在轴的附近。 用于产生磁通的励磁线圈和检测线圈缠绕在芯构件上，并且由励磁线圈产生的并且通过带引入到芯构件的磁通量由检测线圈检测。 当从振荡器向励磁线圈提供预定频率的励磁电流以产生磁通量时，从检测线圈产生输出信号并用电压表测量。
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公开(公告)号：US4590807A
公开(公告)日：1986-05-27
申请号：US682269
申请日：1984-12-17
IPC分类号： G01L3/10
摘要： In a torque sensor of a noncontact type for sensing a torque applied to a shaft, a magnetic ribbon is bonded to a circumferential portion of the peripheral surface of the shaft, and a core member made of a magnetic material is arranged above the shaft surface so that its end faces are faced to the magnetic ribbon. A exciting coil and a detecting coil wound around the core so that a magnetic flux produced by the exciting coil and delivered to the detecting coil is detected by the detecting coil. The magnetic ribbon has a length L0 equal to or smaller than one half of the circumferential length Ls of the shaft 4 and satisfying an inequality given byL1.ltoreq.L0.ltoreq.2L1where L1 is the center-to-center distance between the end faces of the core.
摘要翻译： 在用于感测施加在轴上的转矩的非接触型转矩传感器中，磁条被接合到轴的圆周表面的圆周部分，并且由磁性材料制成的芯构件布置在轴表面上方 其端面面对磁带。 励磁线圈和检测线圈缠绕在芯上，使得由励磁线圈产生并传递到检测线圈的磁通量由检测线圈检测。 磁条的长度L0等于或小于轴4的圆周长度Ls的一半，并且满足L1≤L0<2L1所给出的不等式，其中L1是中心与中心之间的距离 核心的端面。
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公开(公告)号：USRE34039E
公开(公告)日：1992-08-25
申请号：US302603
申请日：1989-01-27
IPC分类号： G01L3/10
摘要： A torque sensor of noncontact type, by which can be stably measured the torque of a shaft with a sufficient S/N ratio under the influence of external magnetic noise, such as an induction magnetic flux which is produced in an induction motor, and which can be readily disposed in a comparatively small space. When provided on an induction motor, the torque sensor is mounted on the induction motor in noncontacting relationship. The torque sensor detects the torque of the shaft and includes a pair of magnetic material members provided on respective circumferential portions of the peripheral surface of a shaft. A pair of magnetic detectors are disposed at opposite locations at which external magnetic fields having opposite phase exist. The detectors detect the variation of the magnetic characteristics of the magnetic materials, and a signal processing circuit produces a mean value of output signals obtained from the magnetic detectors.
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公开(公告)号：US4849017A
公开(公告)日：1989-07-18
申请号：US824219
申请日：1986-01-30
申请人： Masashi Sahashi , Koichiro Inomata
发明人： Masashi Sahashi , Koichiro Inomata
摘要： A magnetic refrigerant for magnetic refrigeration which comprises a sintered body containing at least one of rare earth elements selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and yttrium and a balance consisting essentially of at least one of aluminum, nickel and cobalt.This invention provides sintered magnetic bodies which are suited for use as magnetic refrigerants, and also provides significant contribution to the performance improvement of magnetic refrigerators and to the materialization of regenerator-type magnetic refrigerants.
摘要翻译： 一种用于磁性制冷的磁性制冷剂，其包括含有选自镧，铈，镨，钕，ium，钐，铕，钆，铽，镝，钬，铒，ul ium中的至少一种稀土元素的烧结体 ，镱和钇以及基本上由铝，镍和钴中的至少一种组成的平衡物。 本发明提供适用于磁性制冷剂的烧结磁体，并且还对磁性冰箱的性能改进和再生器型磁性制冷剂的物化提供了重要的贡献。
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公开(公告)号：US4935075A
公开(公告)日：1990-06-19
申请号：US311389
申请日：1989-02-16
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , H01F1/057 , H01F1/0578
摘要： A permanent magnet essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 13% by weight or less of gallium and iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.The magnet having this composition has a high coercive force iHC and a high residual magnetic flux density and therefore has a high maximum energy product.
摘要翻译： 永磁体基本上由10〜40重量％的R，0.1〜8重量％的硼，13重量％以下的镓和铁组成，其中R为选自钇和 稀土元素。 具有这种组成的磁体具有高的矫顽力iHC和高剩余磁通密度，因此具有高的最大能量积。
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