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公开(公告)号：US08829896B2
公开(公告)日：2014-09-09
申请号：US13419731
申请日：2012-03-14
摘要： A stroke amount detecting device includes a magnetism detecting unit, a first magnetic field generating unit and a second magnetic field generating unit. A magnetic pole of the first generating unit and a magnetic pole of the second generating unit, which are opposed to each other, have different polarities. A distance between a gap end of the first generating unit and a gap end of the second generating unit, which are located on a farther side of a rectilinear axis, is smaller than a distance between an open end of the first generating unit and an open end of the second generating unit, which are located on a closer side of the rectilinear axis. The magnetism detecting unit detects a stroke amount of an object based on a magnetic flux generated between the open end of the first generating unit and the open end of the second generating unit.
摘要翻译： 行程量检测装置包括磁检测单元，第一磁场产生单元和第二磁场产生单元。 第一生成单元的磁极和彼此相对的第二生成单元的磁极具有不同的极性。 第一生成单元的间隙端与第二生成单元的位于直线轴的更远侧的间隙端之间的距离小于第一生成单元的开口端与开口部之间的距离 第二生成单元的端部位于直线轴的更靠近的一侧。 磁检测单元基于在第一生成单元的开口端和第二生成单元的开口端之间产生的磁通量来检测物体的行程量。
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公开(公告)号：US08558539B2
公开(公告)日：2013-10-15
申请号：US13082788
申请日：2011-04-08
申请人： Koichiro Matsumoto , Yoshiyuki Kono , Hitomi Honda
发明人： Koichiro Matsumoto , Yoshiyuki Kono , Hitomi Honda
IPC分类号： G01B7/14
CPC分类号： G01D5/145
摘要： A stroke amount detecting device includes a first magnetic field generation member, a second magnetic field generation member, and a magnetic sensor unit. The first magnetic field generation member and the second magnetic field generation member are opposed to each other with respect to a direction perpendicular to a straight stroking axis of a stroking object, and magnetized in opposite directions. The magnetic sensor unit is movable in an area between the first magnetic field generation member and the second magnetic field generation member, along a straight traveling axis that is parallel to the straight stroking axis relative to the first magnetic field generation member and the second magnetic field generation member in accordance with a stroke motion of the stroking object. The magnetic sensor unit has a magnetosensitive surface facing a direction parallel to the traveling axis, thereby to detect an amount of stroke of the object.
摘要翻译： 行程量检测装置包括第一磁场产生部件，第二磁场产生部件和磁传感器部件。 第一磁场产生部件和第二磁场产生部件相对于与抚摸物体的直线行进轴垂直的方向相互相对，并且沿相反方向磁化。 磁传感器单元可沿第一磁场产生部件和第二磁场产生部件之间的区域沿着相对于第一磁场产生部件与直线行程轴平行的直线行进轴移动，第二磁场 根据抚摸物体的行程运动产生构件。 磁传感器单元具有面向与行进轴平行的方向的磁感应表面，从而检测物体的行程。
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公开(公告)号：US07893688B2
公开(公告)日：2011-02-22
申请号：US12181783
申请日：2008-07-29
申请人： Takashi Kawashima , Kimio Uchida , Yukinobu Kajita , Tatsuya Kitanaka , Koichiro Matsumoto , Yoshiyuki Kono , Hisataka Okado , Hiroyuki Shintani
发明人： Takashi Kawashima , Kimio Uchida , Yukinobu Kajita , Tatsuya Kitanaka , Koichiro Matsumoto , Yoshiyuki Kono , Hisataka Okado , Hiroyuki Shintani
IPC分类号： G01B7/14
CPC分类号： G01D5/145
摘要： A position sensor includes a longitudinally extending permanent magnet member at least two longitudinally extending arc-shaped projecting elements respectively projecting from the opposite ends toward the inside space to confront each other at a distance and a pair of compatible main magnetic sensors disposed in the inside space along the longitudinal axis at an interval so as to generate a pair of output signals when the permanent magnet member shifts along the longitudinal axis. The opposite ends of the permanent magnet member are configured to surround a common inside space and polarized to have opposite magnetic poles so as to provide in the inside space a magnetic field whose magnetic flux density becomes a maximum at a longitudinal center of the inside space and gradually becomes smaller as a position of the inside space shifts from the longitudinal center along a longitudinal axis of the permanent magnet members. The arc-shaped projecting elements are arranged so that the magnetic flux density and each of the output signals can be expressed by a cosine of a shift value from the longitudinal center, and the interval is ¼ of the cycle of the cosine.
摘要翻译： 位置传感器包括纵向延伸的永磁体构件，其至少两个纵向延伸的弧形突起元件，其分别从相对端向内部空间突出以相隔一定距离，并且一对相容的主磁传感器设置在内部空间 沿着纵轴以一定的间隔，以便当永磁体部件沿着纵向轴线移动时产生一对输出信号。 永久磁铁构件的相对端构成为包围共同的内部空间并且被极化以具有相反的磁极，以便在内部空间中提供在内部空间的纵向中心处的磁通密度变为最大的磁场，以及 随着内部空间的位置沿纵向中心沿永久磁铁构件的纵向轴线偏移，逐渐变小。 弧形突出元件被布置成使得磁通密度和每个输出信号可以由来自纵向中心的偏移值的余弦来表示，并且间隔是余弦周期的1/4。
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公开(公告)号：US07319320B2
公开(公告)日：2008-01-15
申请号：US11168381
申请日：2005-06-29
申请人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
发明人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
CPC分类号： G01D5/145
摘要： An improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed. The rotation angle detecting device includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed to the second member to provide output signals whose phase is different from each other at 90 degrees in angle. The magnet unit includes a pair of disk plates that has the same magnetic poles at the same circumferential positions and is disposed at a prescribed axial distance and a shaft that is made of magnetic material to support the disk plates at the center thereof. The magnetic unit provides a uniform magnetic field in a space around the shaft between the pair of disk plates, and a pair of magnetic sensors is disposed in the space.
摘要翻译： 提出了一种改进的旋转角度检测装置，其检测第一构件相对于第二构件的旋转角度。 旋转角检测装置包括固定到第一构件的磁体单元和固定到第二构件的一对磁性传感器，以提供90度角相位彼此不同的输出信号。 磁体单元包括一对圆盘板，它们在相同的圆周位置处具有相同的磁极并且以规定的轴向距离设置，以及由磁性材料制成的轴，以在其中心处支撑盘片。 磁性单元在一对盘片之间的轴周围的空间中提供均匀的磁场，并且在该空间中设置一对磁性传感器。
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公开(公告)号：US07268540B1
公开(公告)日：2007-09-11
申请号：US11702152
申请日：2007-02-05
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： Conductive wires run parallel to each other and connect a Hall element and an ECU. The conductive wire includes an extracting part and a wiring part. The extracting part runs along a surface of a base, on which the Hall element is positioned, and in a direction of a sensitivity of the Hall element. The wiring part extends from the extracting part and runs near a rotating crankshaft in an axial direction of the crankshaft. Similar to the conductive wire, the conductive wire includes an extracting part and a wiring part. Conductive wires run parallel to each other and connect a Hall element and the ECU. The conductive wires include an extracting part and a wiring part, and an extracting part and a wiring part, respectively.
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6.发明授权公开(公告)号：US07218100B1
公开(公告)日：2007-05-15
申请号：US11583064
申请日：2006-10-19
IPC分类号： G01B7/30
CPC分类号： G01D5/24461 , G01D5/145
摘要： A rotation angle detecting device includes magnetic field forming members such as a permanent magnet and a yoke, a plurality of magnetic sensors disposed in the magnetic field to rotate relative to the magnetic field forming members to provide output signals that are 90 degrees in phase different from each other, a judgment level calculating circuit that provides a judgment level based on the output signals and judging circuit that judges the output signals normal if the judgment level is within a prescribed range and not normal if the judgment level is out of the prescribed range.
摘要翻译： 旋转角检测装置包括诸如永磁体和磁轭的磁场形成部件，设置在磁场中的多个磁传感器相对于磁场形成部件旋转以提供与90度相位不同的输出信号 相互之间的判断电平计算电路，如果判断电平在规定范围内，则基于输出信号提供判断电平，判断电路判断输出信号是正常的，如果判断电平超出规定范围则判定电平不正常。
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公开(公告)号：US20050242802A1
公开(公告)日：2005-11-03
申请号：US11108796
申请日：2005-04-19
摘要： An angular speed detecting device is composed of a magnetic sensor unit connected to a rotating object and including a permanent magnet and a pair of magnetic sensor elements to generate a pair of signals and an electric computing unit that calculates an angular speed from the signals. The electric computing unit calculates the angular speed by the following steps: forming sine and cosine functions of an angle θ′ from the signals; forming a saw-tooth curve of the angle θ′; forming a table showing plus or minus sign of the signals and the saw-tooth curve of the angle θ′ at a plurality of rotation angles of the rotating object; forming a pair of curves of output angles θ1 and θ2 in terms of 360-degree angular range by distinguishing rotation position of the rotating object from a combination of the plus, or minus sign of the signals and the saw-tooth curve of the angle θ′; and selectively using curves of the output angles θ1 and θ2 to calculate the angular speed of a rotating object.
摘要翻译： 角速度检测装置由连接到旋转物体的磁传感器单元组成，包括永磁体和一对磁传感器元件，以产生一对信号;以及电子计算单元，其从该信号计算角速度。 电子计算单元通过以下步骤计算角速度：从信号形成角度θ'的正弦和余弦函数; 形成角度θ'的锯齿曲线; 形成在旋转物体的多个旋转角度处显示信号的正负号和角度θ'的锯齿曲线的表格; 通过将旋转物体的旋转位置与加号的组合区分开来，以360度角度范围形成一对输出角度θ1和θ2 2的曲线， 信号的减号或角度θ'的锯齿曲线; 并且选择性地使用输出角θ1和θ2的曲线来计算旋转物体的角速度。
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公开(公告)号：US08882079B2
公开(公告)日：2014-11-11
申请号：US13609916
申请日：2012-09-11
申请人： Jiro Kondo , Yoshiyuki Murao , Koichiro Matsumoto
发明人： Jiro Kondo , Yoshiyuki Murao , Koichiro Matsumoto
CPC分类号： F16K31/0613 , F01L1/34 , F01L1/3442 , F01L2001/34426 , F01L2001/3443 , F01L2001/34433 , H01F7/081 , H01F7/13
摘要： A stator is provided with a ring-shaped outer stator-projection and a ring-shaped inner stator-projection. A plunger is provided with a ring-shaped outer plunger-projection and a ring-shaped inner plunger-projection. A magnetic force is generated at three portions between the plunger and the stator. The inner stator-projection has a first tapered surface and the outer plunger-projection has a second tapered surface. The first tapered surface and the second tapered surface confront each other when the plunger moves toward the stator.
摘要翻译： 定子设置有环形外定子突起和环形内定子投影。 柱塞设置有环形外柱塞突起和环形内柱塞突起。 在柱塞和定子之间的三个部分产生磁力。 内部定子突起具有第一锥形表面，并且外部柱塞突起具有第二锥形表面。 当柱塞向定子移动时，第一锥形表面和第二锥形表面彼此面对。
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公开(公告)号：US08779761B2
公开(公告)日：2014-07-15
申请号：US13223532
申请日：2011-09-01
IPC分类号： G01B7/30
CPC分类号： G01D11/245 , G01D5/145
摘要： A rotation angle detecting unit includes an IC package having a magnetism detecting element, a sealing body, and leads; and a covering member having a fixing part and a supporting part, which are integrally formed from resin. The element outputs a signal according to change of a magnetic field generated upon rotation of a magnetism generating device attached to a detection object. The sealing body covers the element. The leads are connected to the element, and project from the sealing body. The fixing part is fixed to a supporting body so that the covering member is attached to the supporting body. The supporting part supports the package such that the element can output the signal. The package is press-fitted into the supporting part after its formation, so that the package is supported by the supporting part with a predetermined pressure applied to part of an outer wall of the sealing body.
摘要翻译： 旋转角度检测单元包括具有磁检测元件，密封体和引线的IC封装; 以及具有由树脂一体形成的固定部和支撑部的覆盖部件。 该元件根据安装在检测对象上的磁性发生装置的旋转时产生的磁场的变化而输出信号。 密封体覆盖该元件。 引线连接到元件，并从密封体突出。 固定部固定在支撑体上，使得覆盖部件安装在支撑体上。 支撑部件支撑包装，使得元件可以输出信号。 该包装在其形成之后被压配合到支撑部分中，使得包装件以预定的压力被支撑部分支撑到密封体的外壁的一部分上。
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公开(公告)号：US20130068975A1
公开(公告)日：2013-03-21
申请号：US13609916
申请日：2012-09-11
申请人： Jiro KONDO , Yoshiyuki MURAO , Koichiro MATSUMOTO
发明人： Jiro KONDO , Yoshiyuki MURAO , Koichiro MATSUMOTO
IPC分类号： F16K31/02
CPC分类号： F16K31/0613 , F01L1/34 , F01L1/3442 , F01L2001/34426 , F01L2001/3443 , F01L2001/34433 , H01F7/081 , H01F7/13
摘要： A stator is provided with a ring-shaped outer stator-projection and a ring-shaped inner stator-projection. A plunger is provided with a ring-shaped outer plunger -projection and a ring-shaped inner plunger-projection. A magnetic force is generated at three portions between the plunger and the stator. The inner stator-projection has a first tapered surface and the outer plunger-projection has a second tapered surface. The first tapered surface and the second tapered surface confront each other when the plunger moves toward the stator.
摘要翻译： 定子设置有环形外定子突起和环形内定子投影。 柱塞设置有环形外柱塞 - 投影和环形内柱塞 - 突起。 在柱塞和定子之间的三个部分产生磁力。 内部定子突起具有第一锥形表面，并且外部柱塞突起具有第二锥形表面。 当柱塞向定子移动时，第一锥形表面和第二锥形表面彼此面对。
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