公开(公告)号：US20080100285A1

公开(公告)日：2008-05-01

申请号：US11874459

申请日：2007-10-18

Applicant: Kouichirou Matsumoto ,  Takashi Kawashima ,  Tatsuya Kitanaka

Inventor： Kouichirou Matsumoto ,  Takashi Kawashima ,  Tatsuya Kitanaka

IPC: G01B7/30

CPC classification number: G01D5/145

Abstract: A rotation angle detecting device includes a permanent magnet member, a pair of magnetic sensor elements disposed in a magnetic field formed by the permanent magnet member to provide a pair of output voltage signals when the magnetic field changes as the rotating object rotates; and a rotation angle calculating unit. The rotation angle calculating unit calculates a phase difference between the pair of output voltage signals from a magnitude of the output signal of one of the magnetic sensor elements when detecting a specific magnitude of the output signal of the other magnetic sensor elements whose phase angle is known.

Abstract translation: 旋转角度检测装置包括永磁体部件，一对磁传感器元件，其设置在由永久磁铁部件形成的磁场中，以在旋转体旋转时磁场发生变化时提供一对输出电压信号; 和旋转角度计算单元。 旋转角度计算单元，当检测到相位角已知的其他磁性传感器元件的输出信号的特定大小时，根据一个磁性传感器元件的输出信号的大小计算一对输出电压信号之间的相位差 。

公开(公告)号：US20080048651A1

公开(公告)日：2008-02-28

申请号：US11878523

申请日：2007-07-25

Applicant: Kouichirou Matsumoto ,  Takashi Kawashima ,  Osamu Shimomura

Inventor： Kouichirou Matsumoto ,  Takashi Kawashima ,  Osamu Shimomura

IPC: G01B7/30 ,  G01R33/07

CPC classification number: G01D5/145

Abstract: A rotation angle detecting device includes a magnetic member for providing a magnetic field, a magnetic sensor for sensing a change in the magnetic field when the magnetic member rotates relative to the magnetic sensor about a rotation axis. The magnetic sensor is disposed at a single position and includes a pair of sensor elements. The pair of sensor elements is disposed on an imaginary plane that is perpendicular to the rotation axis so that sensing surfaces of the sensor elements have 90 degrees in angle to each other and so that each of the sensing surfaces inclines by 45 degrees in angle to a line intersecting the rotation axis at right angles.

Abstract translation: 旋转角度检测装置包括用于提供磁场的磁性构件，用于感测当磁性构件相对于磁性传感器围绕旋转轴线旋转时的磁场变化的磁性传感器。 磁传感器设置在单个位置并且包括一对传感器元件。 一对传感器元件设置在垂直于旋转轴线的虚拟平面上，使得传感器元件的感测表面彼此成90度角，并且使得每个检测表面相对于倾斜角倾斜45度 直线与旋转轴线成直角相交。

公开(公告)号：US07663360B2

公开(公告)日：2010-02-16

申请号：US11878523

申请日：2007-07-25

Applicant: Kouichirou Matsumoto ,  Takashi Kawashima ,  Osamu Shimomura

Inventor： Kouichirou Matsumoto ,  Takashi Kawashima ,  Osamu Shimomura

IPC: G01R33/02 ,  G01R33/06

CPC classification number: G01D5/145

Abstract: A rotation angle detecting device includes a magnetic member for providing a magnetic field, a magnetic sensor for sensing a change in the magnetic field when the magnetic member rotates relative to the magnetic sensor about a rotation axis. The magnetic sensor is disposed at a single position and includes a pair of sensor elements. The pair of sensor elements is disposed on an imaginary plane that is perpendicular to the rotation axis so that sensing surfaces of the sensor elements have 90 degrees in angle to each other and so that each of the sensing surfaces inclines by 45 degrees in angle to a line intersecting the rotation axis at right angles.

Abstract translation: 旋转角度检测装置包括用于提供磁场的磁性构件，用于感测当磁性构件相对于磁性传感器围绕旋转轴线旋转时的磁场变化的磁性传感器。 磁传感器设置在单个位置并且包括一对传感器元件。 一对传感器元件设置在垂直于旋转轴线的虚拟平面上，使得传感器元件的感测表面彼此成90度角，并且使得每个检测表面相对于倾斜角倾斜45度 直线与旋转轴线成直角相交。

公开(公告)号：US20080074102A1

公开(公告)日：2008-03-27

申请号：US11902422

申请日：2007-09-21

Applicant: Tatsuya Kitanaka ,  Takashi Kawashima ,  Kouichirou Matsumoto

Inventor： Tatsuya Kitanaka ,  Takashi Kawashima ,  Kouichirou Matsumoto

IPC: G01B7/30

CPC classification number: G01D5/145

Abstract: A rotation angle detecting device includes a magnetic field forming member, magneto-sensing IC circuit including first and second sensing sections in a magnetic field to have a first preset angle between them, and a selecting circuit. One of the first and second sensing section includes plural magneto-sensing elements whose sensing surfaces face in directions different from one another by a second preset angle. When the magnetic field forming member rotates relative to the magneto-sensing means, the magneto-sensing elements respectively provide the output signals. The selecting circuit selects a pair of the output signals of the magneto-sensing elements that is closest to a preset phase difference angle.

Abstract translation: 旋转角检测装置包括磁场形成部件，磁感应IC电路，其包括在磁场中具有第一预设角度的第一感测部和第二感测部，以及选择电路。 第一和第二感测部分中的一个包括多个感测元件，其感测表面面向彼此不同的方向第二预设角度。 当磁场形成构件相对于磁感测装置旋转时，磁感应元件分别提供输出信号。 选择电路选择最接近预设相位差角的磁敏元件的一对输出信号。

公开(公告)号：US07675284B2

公开(公告)日：2010-03-09

申请号：US11874459

申请日：2007-10-18

Applicant: Kouichirou Matsumoto ,  Takashi Kawashima ,  Tatsuya Kitanaka

Inventor： Kouichirou Matsumoto ,  Takashi Kawashima ,  Tatsuya Kitanaka

IPC: G01B7/30

CPC classification number: G01D5/145

Abstract: A rotation angle detecting device includes a permanent magnet member, a pair of magnetic sensor elements disposed in a magnetic field formed by the permanent magnet member to provide a pair of output voltage signals when the magnetic field changes as the rotating object rotates; and a rotation angle calculating unit. The rotation angle calculating unit calculates a phase difference between the pair of output voltage signals from a magnitude of the output signal of one of the magnetic sensor elements when detecting a specific magnitude of the output signal of the other magnetic sensor elements whose phase angle is known.

Abstract translation: 旋转角度检测装置包括永磁体部件，一对磁传感器元件，其设置在由永久磁铁部件形成的磁场中，以在旋转体旋转时磁场发生变化时提供一对输出电压信号; 和旋转角度计算单元。 旋转角度计算单元，当检测到相位角已知的其他磁性传感器元件的输出信号的特定大小时，根据一个磁性传感器元件的输出信号的大小计算一对输出电压信号之间的相位差 。

公开(公告)号：US07671585B2

公开(公告)日：2010-03-02

申请号：US11902422

申请日：2007-09-21

Applicant: Tatsuya Kitanaka ,  Takashi Kawashima ,  Kouichirou Matsumoto

Inventor： Tatsuya Kitanaka ,  Takashi Kawashima ,  Kouichirou Matsumoto

IPC: G01B7/30

CPC classification number: G01D5/145

Abstract: A rotation angle detecting device includes a magnetic field forming member, magneto-sensing IC circuit including first and second sensing sections in a magnetic field to have a first preset angle between them, and a selecting circuit. One of the first and second sensing section includes plural magneto-sensing elements whose sensing surfaces face in directions different from one another by a second preset angle. When the magnetic field forming member rotates relative to the magneto-sensing means, the magneto-sensing elements respectively provide the output signals. The selecting circuit selects a pair of the output signals of the magneto-sensing elements that is closest to a preset phase difference angle.

Abstract translation: 旋转角检测装置包括磁场形成部件，磁感应IC电路，其包括在磁场中具有第一预设角度的第一感测部和第二感测部，以及选择电路。 第一和第二感测部分中的一个包括多个感测元件，其感测表面面向彼此不同的方向第二预设角度。 当磁场形成构件相对于磁感测装置旋转时，磁感应元件分别提供输出信号。 选择电路选择最接近预设相位差角的磁敏元件的一对输出信号。