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126 条记录 (耗时 0.024 秒)

    Sensor assembly for sensing angular position
    11.
    发明授权
    Sensor assembly for sensing angular position 失效
    用于感测角位置的传感器组件

    公开(公告)号：US06873151B2

    公开(公告)日：2005-03-29

    申请号：US10615561

    申请日：2003-07-08

    申请人： Bruno P. B. Lequesne ,  Avoki M. Omekanda ,  Thaddeus Schroeder

    发明人： Bruno P. B. Lequesne ,  Avoki M. Omekanda ,  Thaddeus Schroeder

    IPC分类号： G01B7/30 ,  G01D5/14 ,  G01D5/16

    CPC分类号： G01D5/145

    摘要： A sensor assembly for sensing angular position of an object is provided. The assembly may comprise at least one magneto-sensing magnet having a second axis of rotation. The assembly may further comprise a magnet having a second axis of rotation. At least one of the magnet and the magneto-sensing element are rotatable relative to the other. The respective axes of rotation of the magneto-sensing element and the magnet are non-coincident with respect to one another. The magnet is magnetized along one of the following directions: an axial direction and a radial direction.

    摘要翻译： 提供了一种用于感测物体的角度位置的传感器组件。 组件可以包括具有第二旋转轴线的至少一个磁感应磁体。 组件还可以包括具有第二旋转轴线的磁体。 磁体和磁感应元件中的至少一个可相对于另一个旋转。 磁感测元件和磁体的各个旋转轴线彼此不重合。 磁体沿着以下方向之一被磁化：轴向和径向。

    Magnetoresistive encoder for tracking the angular position of a rotating ferromagnetic target wheel
    13.
    发明授权
    Magnetoresistive encoder for tracking the angular position of a rotating ferromagnetic target wheel 失效
    用于跟踪旋转铁磁目标轮的角位置的磁阻编码器

    公开(公告)号：US5754042A

    公开(公告)日：1998-05-19

    申请号：US262097

    申请日：1994-06-20

    申请人： Thaddeus Schroeder ,  Bruno Patrice Bernard Lequesne ,  Hiro Yamasaki

    发明人： Thaddeus Schroeder ,  Bruno Patrice Bernard Lequesne ,  Hiro Yamasaki

    IPC分类号： G01B7/30 ,  G01D5/14 ,  G01D5/16 ,  G01D5/249 ,  H01L43/08

    CPC分类号： G01D5/147 ,  G01B7/30 ,  G01D5/2497

    摘要： An apparatus for detecting precise angular positions of a rotating object. Two magnetoresistors (MRs) are positioned adjacent a target wheel attached to the rotating object, the target wheel having at least one element of finite length. Each MR is responsive to the passage of at least one of the elements as the target wheel is rotated, generating an analog signal with signal transitions between two voltage levels at the passage of the element's leading and trailing edges. The MRs are positioned relative to the elements such that their signals are phase shifted with respect to one another, resulting in time overlapping signals which intersect at a precise angular positions of the target wheel.

    摘要翻译： 一种用于检测旋转物体的精确角位置的装置。 两个磁阻电阻器（MR）被定位成与附接到旋转物体的目标轮相邻，目标轮具有至少一个有限长度的元件。 当目标轮旋转时，每个MR响应于至少一个元件的通过，在元件的前缘和后缘通过时产生具有两个电压电平之间的信号转换的模拟信号。 MR相对于元件定位，使得它们的信号相对于彼此相移，导致与目标轮的精确角位置相交的时间重叠信号。

    Rotational sensor with robust axial alignment tolerance
    15.
    发明授权
    Rotational sensor with robust axial alignment tolerance 失效
    旋转传感器具有鲁棒的轴向对准公差

    公开(公告)号：US5668471A

    公开(公告)日：1997-09-16

    申请号：US578305

    申请日：1995-12-26

    申请人： Bruno Patrice Bernard Lequesne ,  Thaddeus Schroeder

    发明人： Bruno Patrice Bernard Lequesne ,  Thaddeus Schroeder

    IPC分类号： G01D5/14 ,  G01D5/16 ,  G01B7/30 ,  G01B7/14 ,  G01D5/12

    CPC分类号： G01D5/147

    摘要： A rotation sensor for high accuracy angle applications such as internal combustion engine crankshaft position sensing includes a pair of complementary target wheels and a dual-element magnetoresistive sensor. The target wheels are spaced from one another along the rotational axis by a predetermined distance. The individual magnetoresistive elements are similarly spaced one from the other and are influence by the ferrite effects of the target wheels. The spacing of the target wheels and magnetoresistive elements are selected in relation to one another and in relation to the mount of axial play in the crankshaft such that changes in ferrite effects of the target wheels upon the elements due to axial displacements of the crankshaft have minimal effect on the accuracy of the sensing apparatus.

    摘要翻译： 用于高精度角度应用的旋转传感器，例如内燃机曲轴位置检测包括一对互补目标轮和双元件磁阻传感器。 目标轮沿着旋转轴线彼此间隔预定距离。 单个磁阻元件彼此相似地间隔开并且受到目标轮的铁氧体效应的影响。 目标轮和磁阻元件的间距相对于彼此并且相对于曲轴中的轴向游隙的安装来选择，使得由于曲轴的轴向位移而使目标轮对元件的铁素体效应的变化最小化 影响感测装置的精度。

    Universal magnetostrictive force sensor
    16.
    发明授权
    Universal magnetostrictive force sensor 失效
    通用磁致伸缩力传感器

    公开(公告)号：US06993983B2

    公开(公告)日：2006-02-07

    申请号：US10313660

    申请日：2002-12-06

    申请人： Bruno Patrice Bernard Lequesne ,  Donald T. Morelli ,  Thaddeus Schroeder ,  Thomas Wolfgang Nehl ,  Thomas Allen Baudendistel

    发明人： Bruno Patrice Bernard Lequesne ,  Donald T. Morelli ,  Thaddeus Schroeder ,  Thomas Wolfgang Nehl ,  Thomas Allen Baudendistel

    IPC分类号： G01L1/12

    CPC分类号： G01L1/127 ,  G01L1/125

    摘要： A magnetostrictive force sensor universally usable in any environment with similar signals unaffected by the surrounding material. To this end, a sensor comprising a shaft of magnetostrictive material with an inductance coil wound around the shaft is provided with a magnetic shell enclosing the coil only or both the coil and the shaft. Upon application of the magnetic field, the resultant flow of magnetic flux is confined to a path through the shaft and the magnetic shell. By confining the magnetic flux path, the dependency of the sensor signal on the surrounding material and environment is essentially eliminated.

    摘要翻译： 一种磁致伸缩力传感器，可在任何环境中使用，具有不受周围材料影响的相似信号。 为此，包括具有卷绕在轴上的电感线圈的磁致伸缩材料轴的传感器设置有只包围线圈或线圈和轴两者的磁性壳。 在施加磁场时，所产生的磁通流被限制在通过轴和磁性壳的路径上。 通过限制磁通路径，基本上消除了传感器信号对周围材料和环境的依赖性。

    Binary encoded crankshaft target wheel with single VR sensor
    17.
    发明授权
    Binary encoded crankshaft target wheel with single VR sensor 失效
    二进制编码曲轴目标车轮与单个VR传感器

    公开(公告)号：US06566867B1

    公开(公告)日：2003-05-20

    申请号：US09339699

    申请日：1999-06-24

    申请人： Thaddeus Schroeder ,  Bruno Patrice Bernard Lequesne

    发明人： Thaddeus Schroeder ,  Bruno Patrice Bernard Lequesne

    IPC分类号： G01B714

    CPC分类号： F02D41/009 ,  G01B7/30 ,  G01D5/249

    摘要： In an angle-based binary encoded crankshaft position sensing system, a target wheel is coupled to a crankshaft and a single VR sensor is juxtaposed with the target wheel for sensing the angular position of the wheel and, hence, the angular position of the crankshaft. To permit the use of a single VR sensor in conjunction with an angle-based binary encoded system, the periphery of the target wheel is formed with teeth and slots defining a binary pattern. The slots are wider than the teeth, and the depth of the slots relative to the portion of the periphery defining a nominal radius is greater than the height of the teeth relative to the nominal periphery. With this structure, the signal generated by the sensor in response to a slot advantageously is symmetric to the signal generated by the sensor in response to a tooth.

    摘要翻译： 在基于角度的二进制编码的曲轴位置感测系统中，目标轮联接到曲轴，并且单个VR传感器与目标轮并置，以便感测车轮的角位置，并因此感测曲轴的角位置。 为了允许与基于角度的二进制编码系统一起使用单个VR传感器，目标轮的周边形成有限定二进制模式的齿和狭槽。 狭槽比齿宽，并且槽相对于限定标称半径的周边部分的深度大于齿相对于标称周边的高度。 利用这种结构，由传感器响应于时隙产生的信号有利地与由传感器响应于齿产生的信号对称。

    Angular position and angular direction sensor
    18.
    发明授权
    Angular position and angular direction sensor 失效
    角位置和角度方向传感器

    公开(公告)号：US06320374B1

    公开(公告)日：2001-11-20

    申请号：US09339450

    申请日：1999-06-24

    申请人： Thaddeus Schroeder ,  Bruno Patrice Bernard Lequesne

    发明人： Thaddeus Schroeder ,  Bruno Patrice Bernard Lequesne

    IPC分类号： G01B730

    CPC分类号： G01P3/488 ,  G01B7/30 ,  G01P13/045

    摘要： In an angle-based crankshaft position sensing system, an electrical circuit is provided for also sensing the direction of rotation of the crankshaft. A slotted target wheel is coupled to the crankshaft and a single dual-element MR sensor is juxtaposed with the target wheel. The elements generate respective detection signals when a slot passes by the elements, with the position of the slot being indicated as being directly under the sensor at the point in time when the detection signals intersect each other. Also, square waves are generated for each detection signal, and when the magnitude of the second square wave is non-zero when the falling edge of the first square wave occurs, a clockwise rotation is indicated. On the other hand, if the magnitude of the second square wave is zero when the falling edge of the first square wave occurs, a counterclockwise rotation is indicated.

    摘要翻译： 在基于角度的曲轴位置感测系统中，提供了用于也感测曲轴的旋转方向的电路。 开槽的目标轮联接到曲轴，并且单个双元件MR传感器与目标轮并置。 当槽通过元件时，这些元件产生相应的检测信号，在检测信号彼此相交的时刻，槽的位置被指示为直接位于传感器下方。 此外，对于每个检测信号产生方波，并且当第一方波的下降沿出现时第二方波的幅度不为零时，指示顺时针旋转。 另一方面，如果发生第一方波的下降沿时第二方波的幅度为零，则表示逆时针旋转。

    Low cost binary encoded crankshaft position sensor
    19.
    发明授权
    Low cost binary encoded crankshaft position sensor 失效
    低成本二进制编码曲轴位置传感器

    公开(公告)号：US06268721B1

    公开(公告)日：2001-07-31

    申请号：US09250826

    申请日：1999-02-17

    申请人： Thaddeus Schroeder ,  Raymond O. Butler, Jr. ,  Bruno Patrice Bernard Lequesne

    发明人： Thaddeus Schroeder ,  Raymond O. Butler, Jr. ,  Bruno Patrice Bernard Lequesne

    IPC分类号： G01B730

    CPC分类号： G01D5/147 ,  G01D5/246 ,  G01D5/2492

    摘要： A detector of position of rotation of a target wheel via the outputs of a differential sensor employing two matched MRs to extract position of rotation information from the target wheel. The target wheel is provided with wide and narrow slots or teeth circumferentially arranged such that, for example, 24 zones are created wherein each zone ranges from the center of a wide slot to the center of a narrow slot, and wherein each zone occupies 15 degrees circumferentially. The two matched MRs of the sensor are powered by matched current sources and matched magnetic biasing and are aligned in the circumferential direction of the target wheel. The MRs generate two angularly offset signals from the passage of a single slot (or tooth) of the target wheel which are input to a signal conditioning circuit. Within the signal conditioning circuit, the two sensor signals are differentially amplified to produce a differential signal whereby the width of the slot is used to encode a binary position pulse. The spacing between the two matched MRs is such that their output resistances and, thus, their output signals become equal (crossover) in the middle of a slot whereby a wide slot causes the crossover to occur at a lower value of resistance (or output signal) than that of a narrow slot. The low level signal from a wide slot is assigned the binary value of “0” while the high level signal is assigned the binary value of “1” although the reverse assignments of binary values could also be used. Alternatively, the present invention is implementable by width encoded teeth instead of slots.

    摘要翻译： 通过使用两个匹配的MR的差分传感器的输出，目标车轮的旋转位置的检测器，以从目标车轮提取旋转信息的位置。 目标轮设置有宽且窄的槽或齿周向布置，使得例如形成24个区域，其中每个区域从宽狭槽的中心到窄狭槽的中心，并且其中每个区域占据15度 周向地。 传感器的两个匹配的MR由匹配的电流源和匹配的磁偏压供电，并在目标轮的圆周方向上对准。 MRs从目标轮的单个槽（或齿）通过输入到信号调节电路的两个角度偏移信号。 在信号调理电路内，两个传感器信号被差分放大以产生差分信号，由此槽的宽度用于对二进制位置脉冲进行编码。 两个匹配的MR之间的间隔使得它们的输出电阻以及因此它们的输出信号在槽的中间变得相等（交叉），由此宽的槽使得交叉发生在较低的电阻值（或输出信号 ）比狭窄的槽。 尽管可以使用二进制值的反向分配，但是在高电平信号被赋予二进制值“1”的情况下，来自宽时隙的低电平信号被分配二进制值“0”。 或者，本发明可由宽度编码的齿代替槽实现。