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公开(公告)号：US20120285266A1
公开(公告)日：2012-11-15
申请号：US13469145
申请日：2012-05-11
IPC分类号： G01L3/10
摘要： Two magnetic flux collecting rings are installed into a corresponding position axially located between two magnetic yokes. The magnetic flux collecting rings collect a magnetic flux from the magnetic yokes. The magnetic flux collecting rings at least partially overlap with the magnetic yokes in a view taken in the axial direction.
摘要翻译： 两个磁通收集环安装在轴向位于两个磁轭之间的对应位置。 磁通集合环从磁轭收集磁通量。 磁通收集环在沿轴向取向的视野中至少部分地与磁轭重叠。
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公开(公告)号：US06810336B2
公开(公告)日：2004-10-26
申请号：US10396494
申请日：2003-03-26
申请人： Naoki Nakane , Shigetoshi Fukaya , Kenji Takeda
发明人： Naoki Nakane , Shigetoshi Fukaya , Kenji Takeda
IPC分类号： G01B714
CPC分类号： G01L3/104
摘要： A torque sensor includes first and second shafts, an elastic shaft, a magnet, a pair of ring plates, and a magnetic sensor. The elastic shaft connects the first and second shafts coaxially. The magnet is fixed to the first shaft. The pair of ring plates is fixed to the second shaft, and faces each other in an axial direction of the elastic shaft so that the pair of ring plates sandwiches the magnet. The magnetic sensor is disposed in a gap between the pair of ring plates so that the magnetic sensor detects a magnetic flux density in the gap. Each ring plate includes a convexity and a concavity in an inner circumference of each ring plate, respectively. The pair of ring plates is rotatable against the magnet in accordance with a twist of the elastic shaft so that the rotation of the ring plates causes the magnetic flux density in the gap.
摘要翻译： 扭矩传感器包括第一和第二轴，弹性轴，磁体，一对环形板和磁性传感器。 弹性轴同轴连接第一和第二轴。 磁体固定在第一轴上。 一对环形板固定在第二轴上，并且在弹性轴的轴向彼此面对，从而一对环形板夹着磁体。 磁传感器设置在一对环形板之间的间隙中，使得磁传感器检测间隙中的磁通密度。 每个环板分别在每个环板的内圆周上包括一凸起和一凹陷。 一对环形板可以根据弹性轴的扭转而相对于磁体旋转，使得环形板的旋转导致间隙中的磁通密度。
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公开(公告)号：US08203333B2
公开(公告)日：2012-06-19
申请号：US12491576
申请日：2009-06-25
申请人： Shinji Hatanaka , Kenji Takeda , Shigetoshi Fukaya
发明人： Shinji Hatanaka , Kenji Takeda , Shigetoshi Fukaya
IPC分类号： G01B7/30
CPC分类号： B62D15/0215 , G01D5/145
摘要： A rotation angle detecting device includes a housing, a rotating shaft rotatably held by the housing, a driving gear fixed to the rotating shaft, a driven gear engaged with the driving gear, a magnetic field generating part fixed in the driven gear, having a permanent magnet, and configured to generate a magnetic field, a magnetic sensor element configured to detect a change in the magnetic field due to a rotational movement of the magnetic field generating part, and a signal processor configured to process a signal from the magnetic sensor element for detecting a rotation angle of the rotating shaft. Each of teeth of the driving gear has a first circumferential width, each of teeth of the driven gear has a second circumferential width, and the second circumferential width is greater than the first circumferential width.
摘要翻译： 旋转角度检测装置包括壳体，由壳体可旋转地保持的旋转轴，固定到旋转轴的驱动齿轮，与驱动齿轮啮合的从动齿轮，固定在从动齿轮中的磁场产生部，具有永久 磁体，并且被配置为产生磁场;磁传感器元件，被配置为检测由于磁场产生部分的旋转运动引起的磁场变化;以及信号处理器，被配置为处理来自磁传感器元件的信号， 检测旋转轴的旋转角度。 驱动齿轮的每个齿具有第一周向宽度，从动齿轮的每个齿具有第二周向宽度，并且第二周向宽度大于第一周向宽度。
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4.发明授权Angular position sensor working to measure high linearity magnetic flux density 有权角位置传感器用于测量高线性度的磁通密度公开(公告)号：US07298395B2
公开(公告)日：2007-11-20
申请号：US10755682
申请日：2004-01-13
申请人： Shigetoshi Fukaya , Kenji Takeda , Naoki Nakane , Tetsuo Imamura
发明人： Shigetoshi Fukaya , Kenji Takeda , Naoki Nakane , Tetsuo Imamura
IPC分类号： H04N7/18
CPC分类号： G01D5/145
摘要： An angular position sensor is provided which is designed to an angular position of a rotary shaft. The angular position sensor has a magnet affixed to the rotary shaft. The magnet has an N-pole and an S-pole and is so geometrically shaped as to produce magnetic flux which is substantially uniform in amount within a range extending around each of centers of the N-pole and the S-pole. This improves the linearity of a change in sensor output upon rotation of the rotary shaft.
摘要翻译： 提供了一种角位置传感器，其设计成旋转轴的角位置。 角位置传感器具有固定在旋转轴上的磁体。 磁体具有N极和S极，并且具有几何形状，以产生在围绕N极和S极的每个中心延伸的范围内的量基本均匀的磁通量。 这改善了旋转轴旋转时传感器输出变化的线性。
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公开(公告)号：US07154262B2
公开(公告)日：2006-12-26
申请号：US11044228
申请日：2005-01-28
申请人： Tsutomu Kamizono , Koji Wato , Masahiro Taguchi , Shinji Ando , Shigetoshi Fukaya , Kenji Takeda
发明人： Tsutomu Kamizono , Koji Wato , Masahiro Taguchi , Shinji Ando , Shigetoshi Fukaya , Kenji Takeda
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle detecting device includes a columnar permanent magnet that has a generally ring-shaped cross-section and a pair of magnetic poles, a pair of semi-cylindrical yokes disposed in a circumferential direction opposite the permanent magnet, a rotary shaft fixed to the permanent magnet at a shifted rotation axis and a magnetic sensor disposed in one of circumferential gaps between the yokes. The rotation axis and the magnetic poles are arranged so that the magnetic flux density becomes maximum at portions of the yoke less than 90 degrees angled from the circumferential gap in which the magnetic sensor is disposed.
摘要翻译： 旋转角度检测装置包括具有大致环形截面的柱状永磁体和一对磁极，与永久磁铁相反的圆周方向配置的一对半圆柱形磁轭，固定在该磁极上的旋转轴 位于旋转轴线的永磁体和设置在轭之间的周向间隙中的一个磁传感器。 旋转轴和磁极被布置成使得磁轭密度在与设置有磁性传感器的周向间隙成角度小于90度的部分处变得最大。
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公开(公告)号：US07051602B2
公开(公告)日：2006-05-30
申请号：US11175266
申请日：2005-07-07
申请人： Naoki Nakane , Shigetoshi Fukaya
发明人： Naoki Nakane , Shigetoshi Fukaya
摘要： A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in a magnetic field generated by the multipolar magnet. One set of flux collecting rings is disposed along an outer surface of the set of magnetic yokes and opposed to each other via an air gap in an axial direction. A magnetic sensor is provided for detecting the density of magnetic flux generated in the air gap. An outer cylindrical surface of the set of flux collecting rings is surrounded by a magnetic shield.
摘要翻译： 第一轴和第二轴同轴连接。 扭杆将在两个轴之间施加的扭矩转换成扭转位移。 多极磁体固定在第一轴上。 一组磁轭固定在第二轴上，并设置在由多极磁体产生的磁场中。 一组磁通收集环沿着一组磁轭的外表面设置，并且经由轴向方向上的气隙彼此相对。 提供磁传感器用于检测气隙中产生的磁通密度。 该组磁通收集环的外圆柱表面被磁屏蔽包围。
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公开(公告)号：US20050241414A1
公开(公告)日：2005-11-03
申请号：US11175266
申请日：2005-07-07
申请人： Naoki Nakane , Shigetoshi Fukaya
发明人： Naoki Nakane , Shigetoshi Fukaya
摘要： A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in a magnetic field generated by the multipolar magnet. One set of flux collecting rings is disposed along an outer surface of the set of magnetic yokes and opposed to each other via an air gap in an axial direction. A magnetic sensor is provided for detecting the density of magnetic flux generated in the air gap. An outer cylindrical surface of the set of flux collecting rings is surrounded by a magnetic shield.
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公开(公告)号：US06928887B2
公开(公告)日：2005-08-16
申请号：US10673278
申请日：2003-09-30
申请人： Naoki Nakane , Shigetoshi Fukaya
发明人： Naoki Nakane , Shigetoshi Fukaya
摘要： A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in a magnetic field generated by the multipolar magnet. One set of flux collecting rings is disposed along an outer surface of the set of magnetic yokes and opposed to each other via an air gap in an axial direction. A magnetic sensor is provided for detecting the density of magnetic flux generated in the air gap. An outer cylindrical surface of the set of flux collecting rings is surrounded by a magnetic shield.
摘要翻译： 第一轴和第二轴同轴连接。 扭杆将在两个轴之间施加的扭矩转换成扭转位移。 多极磁体固定在第一轴上。 一组磁轭固定在第二轴上，并设置在由多极磁体产生的磁场中。 一组磁通收集环沿着一组磁轭的外表面设置，并且经由轴向方向上的气隙彼此相对。 提供磁传感器用于检测气隙中产生的磁通密度。 该组磁通收集环的外圆柱表面被磁屏蔽包围。
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公开(公告)号：US20050126310A1
公开(公告)日：2005-06-16
申请号：US11043074
申请日：2005-01-27
摘要： A pair of magnetic flux collecting rings and a magnetic sensor are integrally covered by a molded resin to form a sub unit of a torque sensor. The pair of rings and sensors are integrated and are in contact with each other, i.e., the magnetic sensor is held in between respective magnetic flux collecting portions of the rings without any air gap formed therebetween. Magnetic flux collected by the rings can be detected by the magnetic sensor to a maximum degree, whereby the signal output of the magnetic sensor is enhanced and made stable.
摘要翻译： 一对磁通收集环和磁传感器被模制树脂整体地覆盖以形成转矩传感器的子单元。 一对环和传感器被一体化并且彼此接触，即，磁传感器被保持在环的相应磁通收集部分之间，而在它们之间形成任何气隙。 由磁环收集的磁通可以通过磁传感器最大程度地检测，从而磁传感器的信号输出增强并稳定。
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公开(公告)号：US06868743B2
公开(公告)日：2005-03-22
申请号：US10705961
申请日：2003-11-13
申请人： Naoki Nakane , Shigetoshi Fukaya
发明人： Naoki Nakane , Shigetoshi Fukaya
CPC分类号： G01L3/104
摘要： A torque sensor is provided which consists of a magnet, an assembly of magnetic rings, and a magnetic sensor. The magnetic rings have claws arrayed thereround at regular intervals. Each of the claws of one of the rings is interposed between adjacent two of the claws of the other ring. Upon input of torque, the magnet is rotated relative to the ring assembly, thereby causing the density of magnetic flux to change as a function of the torque which is sensed by the magnetic sensor. Each of the claws is geometrically shaped so as to increase the density of magnetic flux flowing through the ring assembly, thereby improving the sensitivity of the sensor.
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