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公开(公告)号：US07597010B1
公开(公告)日：2009-10-06
申请号：US11274635
申请日：2005-11-15
IPC分类号： G01L3/00
CPC分类号： H01L41/12 , C21D8/12 , C21D8/125 , G01N2203/0635 , H01F1/047
摘要： A method of using a magnetostrictive material to achieve a high magnetomechanical coupling factor comprising building an internal anisotropy energy into the magnetostrictive material and applying a tensile or compressive stress to the magnetostrictive material with the built-in internal anisotropy energy. The internal anisotropy energy is built into the magnetostrictive material by annealing the magnetostrictive material under an annealing stress or a suitable magnetic field. For a positive magnetostrictive material, when the annealing stress is compressive, the stress applied to the annealed material under operation is tensile, and when the annealing stress is the tensile, the stress applied to the annealed material under operation is compressive. For a negative magnetostrictive material, when the annealing stress is compressive, the stress applied to the annealed material under operation is tensile, and when the annealing stress is tensile, the stress applied to the annealed material under operation is compressive.
摘要翻译： 一种使用磁致伸缩材料来实现高磁机械耦合因子的方法，包括将内部各向异性能量建立到磁致伸缩材料中，并以内置的各向异性能量向磁致伸缩材料施加拉伸或压缩应力。 通过在退火应力或合适的磁场下退火磁致伸缩材料，将内部各向异性能量内置于磁致伸缩材料中。 对于正磁致伸缩材料，当退火应力为压缩时，作用于退火材料的应力是拉伸的，当退火应力为拉伸时，施加在退火材料上的应力是压缩的。 对于负磁致伸缩材料，当退火应力为压缩时，作用于退火材料的应力是拉伸的，当退火应力为拉伸时，施加在退火材料上的应力是压缩的。
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2.发明授权Efficiency maximized conversion of electrical to mechanical energy by magnetostrictive transduction 有权效率通过磁致伸缩传导最大化电能转化为机械能公开(公告)号：US06489695B1
公开(公告)日：2002-12-03
申请号：US09770795
申请日：2001-01-24
IPC分类号： H01L4120
CPC分类号： H01L41/12
摘要： The efficiency of converting electrical energy into a mechanical output is maximized by alternatively matching selection of power supply for the drive coil applying a magnetic field to transducer element made of a magnetostrictive material having a near-zero magnetic anisotropy, or matching selection of the magnetostrictive material to the required magnetostriction for a given power supply.
摘要翻译： 将电能转换成机械输出的效率通过交替匹配驱动线圈的电源选择来最大化，所述驱动线圈将磁场施加到由具有接近零磁各向异性的磁致伸缩材料制成的换能器元件，或者匹配选择磁致伸缩材料 达到给定电源所需的磁致伸缩。
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公开(公告)号：US6139648A
公开(公告)日：2000-10-31
申请号：US252782
申请日：1999-02-19
CPC分类号： H01F1/0306 , H01L41/47
摘要： Magnetostrictive material such as Terfenol-D undergoes annealing treatmenty heating for a limited period of time to an elevated temperature below the melting point, followed by cooling to a preferred magnetic state in which a compressive stress generated and applied during treatment is retained in the treated material as a built-in prestress.
摘要翻译： 磁致伸缩材料如Terfenol-D通过在有限的时间内加热至低于熔点的升高温度进行退火处理，随后冷却至优选的磁性状态，其中在处理过程中产生和施加的压缩应力保留在处理过的 材料作为内置预应力。
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4.发明授权Magnetostrictive materials, devices and methods using high magnetostriction, high strength FeGa and FeBe alloys 有权磁致伸缩材料，使用高磁致伸缩，高强度FeGa和FeBe合金的器件和方法公开(公告)号：US08308874B1
公开(公告)日：2012-11-13
申请号：US11296726
申请日：2005-11-29
申请人： Arthur E. Clark , Marilyn Wun-Fogle , James B. Restorff , Thomas A. Lograsso , Rick Allen Kellogg
发明人： Arthur E. Clark , Marilyn Wun-Fogle , James B. Restorff , Thomas A. Lograsso , Rick Allen Kellogg
IPC分类号： H01F1/147
CPC分类号： H01L41/20 , H01F1/0306 , H01F1/047
摘要： An alloy comprising: a magnetostrictive iron alloy having the formula: FexGayAlz, where x is of from about 65 at % to about 90 at %, y is of from about 5 at % to about 35 at %, and z is of from about 0 at % to about 30 at %; and wherein said alloy has a room temperature magnetostriction of at least approximately 150 ppm. An alloy having a saturated magnetostriction of from about at least 150 ppm comprising: a magnetostrictive iron alloy having the formula: FexGayBet, where x is of from about 65 at % to about 90 at %, y is of from about 1 at % to about 35 at %, and t is of from about 1 at % to about 30 at %; and wherein said alloy has a room temperature magnetostriction of at least approximately 150 ppm.
摘要翻译： 一种合金，其包括：具有下式的Fe / GaAlAl 2的磁致伸缩铁合金，其中x为约65原子％至约90原子％，y为约5原子％至约35原子％，z为约0 ％至约30原子％; 并且其中所述合金具有至少约150ppm的室温磁致伸缩。 具有约至少150ppm的饱和磁致伸缩的合金，包括：具有下列通式的磁致伸缩铁合金：FexGayBet，其中x为约65at％至约90at％，y为约1at％至约 35at％，t为约1at％至约30at％; 并且其中所述合金具有至少约150ppm的室温磁致伸缩。
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公开(公告)号：US20100291403A1
公开(公告)日：2010-11-18
申请号：US12844559
申请日：2010-07-27
IPC分类号： H01F1/16
CPC分类号： H01L41/12 , H02N2/186 , Y10T428/12465
摘要： Disclosed are bimetallic strips that incorporate magnetostrictive materials to enhance and provide sensing, actuating and energy harvesting functions. The bimetallic strips include a positive magnetostrictive Fe-based alloy layer and a flexible layer. The flexible layer may be a negative magnetostrictive layer or a permanent magnet layer. One or more permanent magnet materials may also be used in the arrangement. The bimetallic strips are inexpensive and easily manufactured, and have characteristics that enhance sensing and actuator applications, and enables energy harvesting.
摘要翻译： 公开了包含磁致伸缩材料以增强和提供感测，致动和能量收集功能的双金属条。 双金属条包括正磁致伸缩Fe基合金层和柔性层。 柔性层可以是负磁致伸缩层或永磁体层。 在该装置中也可以使用一种或多种永久磁铁材料。 双金属条便宜且易于制造，并且具有增强感测和致动器应用的特性，并且能够进行能量收集。
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6.发明授权Strain sensing system including a magnetostrictive material having a piezomagnetic property selected for maximizing electrical impedance to current applied to a predetermined skin depth 失效应变传感系统包括具有压电特性的磁致伸缩材料，所述磁致伸缩材料被选择用于使电阻抗与施加到预定皮肤深度的电流最大化
公开(公告)号：US5600239A
公开(公告)日：1997-02-04
申请号：US611469
申请日：1995-06-16
摘要： A magnetostrictive element having a large magnetomechanical coupling factorlong its axis, is selected to determine strain by measurement of changes in its electrical impedance along such axis. Such measurement is maximized by generation of current of a predetermined frequency conducted through the magnetostrictive element to correspondingly penetrate the magnetostrictive element to a substantial skin depth.
摘要翻译： 选择沿其轴线具有大的磁机械耦合系数的磁致伸缩元件，以通过测量沿其轴线的电阻抗的变化来确定应变。 通过产生通过磁致伸缩元件传导的预定频率的电流来使这种测量最大化，以相应地将磁致伸缩元件穿透到基本的趋肤深度。
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公开(公告)号：US06300855B1
公开(公告)日：2001-10-09
申请号：US09217129
申请日：1998-12-21
IPC分类号： H01L4120
CPC分类号： H01L41/20
摘要： A high power magnetostrictive transducer element comprising a material of the formula TbxDyyHozFe2−w wherein 0.24≦x≦0.28, 0.52≦y≦0.56, 0.13≦z≦0.22, x+y+z=1, and 0≦w≦0.20 and wherein the material is prestressed by a compressive force of from about 5 to about 100 MPa.
摘要翻译： 包括式TbxDyyHozFe2-w的材料的高功率磁致伸缩换能器元件，其中0.24 <= x <=0.28,0.52≤y≤0.56,0.13≤z≤0.22，x + y + z = 1和0 <= w <= 0.20，并且其中所述材料通过约5至约100MPa的压缩力预应力。
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公开(公告)号：US06176943B1
公开(公告)日：2001-01-23
申请号：US09238890
申请日：1999-01-28
IPC分类号： H01F114
CPC分类号： G01R33/02 , H01F1/15391
摘要： A magnetostrictive wire element made of amorphous ferromagnetic material is tailored for installation within a sensor by treatment which includes annealment by heating while a stress condition is imposed thereon, and applying a DC electric current thereto during said annealment to produce a cylindrical magnetic field relative to the wire element establishing spiral magnetic anistropy during cooldown after said heating.
摘要翻译： 由非晶铁磁材料制成的磁致伸缩线元件被定制用于通过处理来安装在传感器内，该处理包括在施加应力条件的同时通过加热退火，以及在所述退火期间向其施加直流电流以产生相对于 丝线元件在加热后的冷却期间建立螺旋磁性。
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公开(公告)号：US07834490B1
公开(公告)日：2010-11-16
申请号：US12006756
申请日：2007-12-19
CPC分类号： H01L41/12 , H02N2/186 , Y10T428/12465
摘要： Disclosed are bimetallic strips that incorporate magnetostrictive materials to enhance and provide sensing, actuating and energy harvesting functions. The bimetallic strips include a positive magnetostrictive Fe-based alloy layer and a flexible layer. The flexible layer may be a negative magnetostrictive layer or a permanent magnet layer. One or more permanent magnet materials may also be used in the arrangement. The bimetallic strips are inexpensive and easily manufactured, and have characteristics that enhance sensing and actuator applications, and enables energy harvesting.
摘要翻译： 公开了包含磁致伸缩材料以增强和提供感测，致动和能量收集功能的双金属条。 双金属条包括正磁致伸缩Fe基合金层和柔性层。 柔性层可以是负磁致伸缩层或永磁体层。 在该装置中也可以使用一种或多种永久磁铁材料。 双金属条便宜且易于制造，并且具有增强感测和致动器应用的特性，并且能够进行能量收集。
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10.发明授权High magnetostriction of positive magnetostrictive materials under tensile load 有权正磁致伸缩材料在拉伸载荷下的高磁致伸缩公开(公告)号：US07564152B1
公开(公告)日：2009-07-21
申请号：US11053753
申请日：2005-01-31
摘要： An elongate structure having a magnetostrictive material composition is subjected to tensile stress in the longitudinal-axial direction, thereby generally orienting the magnetization of the elongate structure in the longitudinal-axial direction. Electrical current is conducted through the elongate structure and/or through at least one adjacent elongate conductor, thereby generally orienting the magnetization of the elongate structure in the transverse direction, generally in parallel with the transverse direction of the magnetic field concomitant the conduction of current through the elongate structure. The elongate structure magnetostrictively contracts due to the (generally 90°) repositioning of the magnetization of the elongate structure. Examples of inventive configurational variants include: (i) an elongate structure itself conducting current; (ii) a hollow elongate structure accommodating placement therethrough of at least one elongate conductor; (iii) an elongate structure flanked by a pair of elongate conductors conducting current in opposite directions; (iv) plural elongate structures bordering a centralized elongate conductor.
摘要翻译： 具有磁致伸缩材料组合物的细长结构在纵向轴向方向受到拉伸应力，从而大体上沿长轴方向定向细长结构的磁化。 电流通过细长结构和/或通过至少一个相邻的细长导体传导，从而通常沿横向方向定向细长结构的磁化，通常与磁场的横向方向平行，同时电流的传导通过 细长结构。 由于细长结构的磁化的（通常为90°）重新定位，细长结构由于磁致伸缩而收缩。 本发明构造变型的实例包括：（i）本身传导电流的细长结构; （ii）容纳穿过其中的至少一个细长导体的中空细长结构; （iii）细长结构，其侧面是一对沿相反方向传导电流的细长导体; （iv）与集中的细长导体接合的多个细长结构。
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