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公开(公告)号：US07234361B2
公开(公告)日：2007-06-26
申请号：US11034440
申请日：2005-01-11
摘要： A sensor assembly for measuring force along an axis (F) comprises an inductance coil extending around the axis (F) for establishing a loop of magnetic flux looping axially through the coil and extending around the axis (F) to define a donut shaped ring of magnetic flux surrounding the axis (F). A core of magnetostrictive material provides a primary path for the magnetic flux in a first portion of the loop of magnetic flux and a magnetic carrier provides a return path for magnetic flux in a second portion of the loop of magnetic flux as the magnetic flux circles the coil through the core and the carrier. A first interface extends radially between the core and the carrier whereby the core and the carrier are urged together at the interface in response to a force applied parallel to the axis (F). Various embodiments or combinations of the core and carrier are illustrated in FIGS. 3–7.
摘要翻译： 用于沿轴线（F）测量力的传感器组件包括围绕轴线（F）延伸的电感线圈，用于沿轴线（F）绕轴线（F）建立一个环绕磁通量的环路，并且围绕轴线（F）延伸以形成环形环 围绕轴线（F）的磁通量。 磁致伸缩材料的核心提供磁通环路的第一部分中的磁通量的主路径，并且磁性载体在磁通环路的第二部分中提供用于磁通量的返回路径， 线圈通过芯和载体。 第一界面在芯体和载体之间径向延伸，由此芯体和载体响应于平行于轴线（F）施加的力而在界面处被推动在一起。 图1和图2中示出了芯和载体的各种实施例或组合。 3-7。
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公开(公告)号：US07104137B2
公开(公告)日：2006-09-12
申请号：US10827803
申请日：2004-04-20
IPC分类号： G01L9/16
CPC分类号： G01L9/16
摘要： A magnetostrictive fluid-pressure sensor includes annular inner and outer cylinders, a first connector, annular second and third connectors, and first and second coils. The inner cylinder surrounds a fluid-receiving bore. At least one of the cylinders is a magnetostrictive cylinder. The first connector connects the first ends of the cylinders and has a first portion extending radially inward of the inner cylinder. The second connector connects the second ends of the cylinders and defines a fluid inlet. The third connector connects the cylinders and is positioned longitudinally between the first and second connectors. The first coil is positioned radially between the inner and outer cylinders and longitudinally between the first and third connectors. The second coil is positioned radially between the inner and outer cylinders and longitudinally between the second and third connectors.
摘要翻译： 磁致伸缩流体压力传感器包括环形内圆筒和外圆筒，第一连接器，环形第二和第三连接器以及第一和第二线圈。 内筒围绕流体接收孔。 至少一个气缸是磁致伸缩缸。 第一连接器连接气缸的第一端并且具有从内筒径向向内延伸的第一部分。 第二连接器连接气缸的第二端并限定流体入口。 第三连接器连接气缸并纵向定位在第一和第二连接器之间。 第一线圈径向地定位在内筒和外筒之间，并且纵向地位于第一和第三连接器之间。 第二线圈径向地位于内筒和外筒之间，纵向位于第二和第三连接器之间。
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3.发明授权Sensor assembly having embedded wires within a powder metal core and a method therefor 失效传感器组件在粉末金属芯内具有嵌入的线及其方法
公开(公告)号：US5315245A
公开(公告)日：1994-05-24
申请号：US983064
申请日：1992-11-25
CPC分类号： G01R33/09 , H01L43/02 , Y10T29/49007 , Y10T29/49076
摘要： A semiconductor magnetoresistive sensor and a method for its assembly is specifically provided. The preferred assembly method of this invention is compatible with automated semiconductor chip placement and packaging technology, so as to alleviate the previous requirement that the semiconductor sensing element be separately packaged. The sensor leads are substantially embedded within a powdered metal permanent magnet body. An exposed terminal end of each lead is available for electrical and adhesive contact to a subsequently attached magnetoresistive semiconductor sensing element, using conventional semiconductor placement and packaging techniques. The powdered metal magnetic body is preferably formed by utilizing powder metal compaction techniques, wherein the powder metal is compacted around the interior electrical leads. The teachings of this invention may also be employed to form a variety of electrical sensors and devices, wherein the leads are substantially embedded within a metal core so as to produce a solid assembly. The embedded leads may have a variety of shapes, such as straight or coiled, may range in number from one to a plurality, and may have a variety of physical properties, such as magnetic or non-magnetic, depending on the desired application.
摘要翻译： 具体地提供半导体磁阻传感器及其组装方法。 本发明的优选组装方法与自动半导体芯片放置和封装技术相兼容，以便减轻半导体传感元件分开封装的先前要求。 传感器引线基本上嵌入粉末状金属永磁体内。 使用常规的半导体放置和封装技术，每个引线的暴露端子可用于与随后附接的磁阻半导体感测元件的电和粘合接触。 粉末状金属磁体优选通过利用粉末金属压实技术形成，其中粉末金属在内部电引线周围压实。 本发明的教导也可用于形成各种电传感器和装置，其中引线基本上嵌入在金属芯内以便产生固体组件。 嵌入式引线可以具有各种形状，例如直线或卷绕，其数量可以在一个至多个的范围内，并且可以具有各种物理性质，例如磁性或非磁性，这取决于所需的应用。
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公开(公告)号：US4926122A
公开(公告)日：1990-05-15
申请号：US229396
申请日：1988-08-08
CPC分类号： G01D5/147
摘要： For increased sensitivity a position sensor includes a magnetic circuit in which the stationary portion includes a permanent magnet whose width is optimally 1.5 times the tooth pitch of the exciter portion of the sensor and the magnet face proximate the exciter includes a thin layer of ferromagnetic material over which is centered a narrow magnetic sensing element, such as a magnetoresistor. The sensing element has a width typically less than the tooth width which is between 0.17 and 0.37 the tooth pitch. The needed flux density is typically available simply by appropriate magnet thickness or choice of magnet material without the need of a flux guide.
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5.发明授权Sensor assembly combining signals with enhanced asymmetry for detecting direction of rotation of an object 失效传感器组合组合具有增强的不对称性的信号以检测物体的旋转方向公开(公告)号：US07009384B2
公开(公告)日：2006-03-07
申请号：US10453041
申请日：2003-06-03
摘要： A target wheel sensor assembly includes a target wheel, a magnet, and two or more sensing elements placed therebetween. The magnet and the sensing elements are configured so that as the target wheel rotates each of the sensing elements outputs a respective asymmetric signal relative to the direction of rotation of the target wheel or an object mechanically connected to the wheel. Each of these asymmetric signals is differentially combined with one another to determine the direction of motion of the target wheel, and, if optionally desired, the position of the target wheel.
摘要翻译： 目标轮传感器组件包括目标轮，磁体和放置在它们之间的两个或更多个传感元件。 磁体和感测元件构造成使得当目标轮旋转每个感测元件时，相对于目标轮或机械地连接到车轮的物体的旋转方向输出相应的不对称信号。 这些不对称信号中的每一个彼此差分地组合以确定目标车轮的运动方向，并且如果可选地，确定目标车轮的位置。
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公开(公告)号：US5570016A
公开(公告)日：1996-10-29
申请号：US252293
申请日：1994-06-01
申请人： Thaddeus Schroeder , Bruno P. B. Lequesne , Raymond O. Butler, Jr. , Anthony L. Marks , Thomas A. Perry , John R. Bradley
发明人： Thaddeus Schroeder , Bruno P. B. Lequesne , Raymond O. Butler, Jr. , Anthony L. Marks , Thomas A. Perry , John R. Bradley
CPC分类号： G01D5/2497 , G01B7/30 , G01D5/147
摘要： A method and apparatus for detecting an engine crankshaft angular position which provides for fast starting of the engine. A target wheel and sensor combination generate an analog signal which is convened into a 24 bit digital output which repeats every 360.degree. rotation of the crankshaft. Each bit represents a particular angular position of the crankshaft. Any 6 sequential bits in the repeating 24 bit digital output sequence form a unique pattern. By monitoring the first six bits generated (90.degree. of crankshaft rotation) during startup, a crankshaft angular position can be determined, thereby enabling fast starting of the engine.
摘要翻译： 一种用于检测发动机曲轴角位置的方法和装置，其提供发动机的快速启动。 目标轮和传感器组合产生模拟信号，该模拟信号被转换成24位数字输出，其重复曲轴每360度的旋转。 每个位表示曲轴的特定角度位置。 重复的24位数字输出序列中的任何6个连续位形成一个独特的模式。 通过监视启动时产生的前六位（曲轴旋转90°），可以确定曲轴角度位置，从而能够快速启动发动机。
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公开(公告)号：US5492572A
公开(公告)日：1996-02-20
申请号：US345055
申请日：1994-11-25
IPC分类号： C21D1/04 , C21D1/09 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/12 , H01F1/03 , H01F1/057 , H02K1/27 , H02K15/03 , H01F1/04
CPC分类号： H02K1/2733 , C21D1/04 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/125 , H01F1/0306 , H01F1/057 , H02K15/03 , C21D1/09 , C21D2221/00 , Y10T29/4902
摘要： A magnetized or unmagnetized body of a permanent magnet material is heated in a pattern by a laser beam to a temperature sufficient to lower the coercivity of selected heated regions of the pattern and exposed to a magnetic field to magnetize or to remagnetize the selected heated regions. A pattern guide is used in the process to densify the pattern. In the process, energy is directed through the pattern guide and onto the selected regions, while the pattern guide prevents or minimizes heating of unselected portions of the body. Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength.
摘要翻译： 永磁材料的磁化或非磁化体通过激光束以图案加热至足以降低图案的选定加热区域的矫顽力并暴露于磁场以使磁化或使所选择的加热区域再磁化的温度。 在该过程中使用图案指南来致密化图案。 在该过程中，能量通过图案引导件引导到所选择的区域上，同时图案引导件防止或最小化身体的未选择部分的加热。 如此制造的磁体可以具有非常高的极点密度，数字编码和具有逐渐变化的局部场强的模拟图案。
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公开(公告)号：US5598814A
公开(公告)日：1997-02-04
申请号：US357794
申请日：1994-12-15
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： A motor control includes position transducers for generating crankshaft position and motor position pulse trains. The pulse trains are compared to detect any phase difference between engine and motor. Tables are generated to define the desired phase difference needed for particular valve characteristics. The phase difference represents the instantaneous deviation from the basic profile. One of the tables is selected according to the engine conditions and the motor is driven to achieve the desired phase differences.
摘要翻译： 马达控制器包括用于产生曲轴位置和马达位置脉冲列的位置传感器。 将脉冲串进行比较，以检测发动机和电机之间的任何相位差。 生成表以定义特定阀特性所需的期望相位差。 相位差表示与基本曲线的瞬时偏差。 根据发动机条件选择其中一个表，并且驱动电动机以实现期望的相位差。
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公开(公告)号：US5494007A
公开(公告)日：1996-02-27
申请号：US358212
申请日：1994-12-15
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： A cam mechanism is employed to convert motor rotation to reciprocating valve motion. Motor speed is reduced at the valve opening and closing times to reduce stress on the cam mechanism.
摘要翻译： 采用凸轮机构将电机转动转换成往复阀运动。 在阀门打开和关闭时间，电机速度减小，以减少凸轮机构的应力。
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公开(公告)号：US5327856A
公开(公告)日：1994-07-12
申请号：US994829
申请日：1992-12-22
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： Each valve of an internal combustion engine is driven by a separate rotary electric motor. A cam mechanism for the valves comprises a cylindrical cam in line with the motor axis and the valve stem, the mechanism having inner and outer cylinders, one cylinder rotating with the motor and carrying a cam and the other containing a cam follower and reciprocating with the valve.
摘要翻译： 内燃机的每个阀由单独的旋转电动机驱动。 用于阀的凸轮机构包括与电动机轴线和阀杆一致的圆柱形凸轮，该机构具有内部和外部气缸，一个气缸与电动机一起旋转并且承载凸轮，另一个气缸容纳凸轮从动件并与 阀。
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