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1. 发明申请

US20100033064A1 ROTATION DETECTOR AND DIRECT-CURRENT MOTOR 有权
标题翻译：旋转探测器和直流电动机
公开(公告)号：US20100033064A1
公开(公告)日：2010-02-11
申请号：US12535968
申请日：2009-08-05
申请人： Ken Tanaka , Tsutomu Nakamura , Kenji Takeda , Masaru Touge , Yasuhiro Fukagawa
发明人： Ken Tanaka , Tsutomu Nakamura , Kenji Takeda , Masaru Touge , Yasuhiro Fukagawa
IPC分类号： H02K11/00 , H02K23/00
CPC分类号： H02K23/66 , G01B7/30 , G01D5/2006 , G01P3/48 , H02P6/185 , H02P7/0094 , H02P2203/03
摘要： A power supply unit superimposes alternating-current voltage on direct-current voltage and applies it to a motor. As a result, when the motor is rotated, a current containing an alternating-current component flows. Further, the motor includes a capacitor connected in parallel with one phase coil. Owing to this capacitor, the impedance of the motor circuit between brushes is varied according to the rotation of the motor. Variation in impedance appears as variation in the amplitude of the alternating-current component in motor current. A signal processing unit extracts an alternating-current component from the motor current detected by the current detection unit and generates a rotation pulse corresponding to variation in the amplitude. A rotation angle detection unit detects the rotation angle of the motor based on this rotation pulse.
摘要翻译：电源单元将交流电压叠加在直流电压上并将其施加到电动机。结果，当马达旋转时，流过含有交流分量的电流。此外，电动机包括与一相线圈并联连接的电容器。由于该电容器，电刷之间的电动机电路的阻抗根据电动机的旋转而变化。阻抗的变化表现为电机电流中交流分量振幅的变化。信号处理单元从由电流检测单元检测到的电机电流提取交流分量，并产生与振幅变化对应的旋转脉冲。旋转角度检测单元基于该旋转脉冲检测电动机的旋转角度。

2. 发明授权

US08222776B2 Rotation detector and direct-current motor 有权
标题翻译：旋转检测器和直流电机
公开(公告)号：US08222776B2
公开(公告)日：2012-07-17
申请号：US12535968
申请日：2009-08-05
申请人： Ken Tanaka , Tsutomu Nakamura , Kenji Takeda , Masaru Touge , Yasuhiro Fukagawa
发明人： Ken Tanaka , Tsutomu Nakamura , Kenji Takeda , Masaru Touge , Yasuhiro Fukagawa
IPC分类号： H02K11/00
CPC分类号： H02K23/66 , G01B7/30 , G01D5/2006 , G01P3/48 , H02P6/185 , H02P7/0094 , H02P2203/03
摘要： A power supply unit superimposes alternating-current voltage on direct-current voltage and applies it to a motor. As a result, when the motor is rotated, a current containing an alternating-current component flows. Further, the motor includes a capacitor connected in parallel with one phase coil. Owing to this capacitor, the impedance of the motor circuit between brushes is varied according to the rotation of the motor. Variation in impedance appears as variation in the amplitude of the alternating-current component in motor current. A signal processing unit extracts an alternating-current component from the motor current detected by the current detection unit and generates a rotation pulse corresponding to variation in the amplitude. A rotation angle detection unit detects the rotation angle of the motor based on this rotation pulse.
摘要翻译：电源单元将交流电压叠加在直流电压上并将其施加到电动机。结果，当马达旋转时，流过含有交流分量的电流。此外，电动机包括与一相线圈并联连接的电容器。由于该电容器，电刷之间的电动机电路的阻抗根据电动机的旋转而变化。阻抗的变化表现为电机电流中交流分量振幅的变化。信号处理单元从由电流检测单元检测到的电动机电流提取交流分量，并产生与振幅变化相对应的旋转脉冲。旋转角度检测单元基于该旋转脉冲检测电动机的旋转角度。

3. 发明申请

US20100289387A1 Rotation detecting apparatus and direct current motor 审中-公开
标题翻译：旋转检测装置和直流电动机
公开(公告)号：US20100289387A1
公开(公告)日：2010-11-18
申请号：US12800354
申请日：2010-05-13
申请人： Ken Tanaka , Kenji Takeda , Tsutomu Nakamura , Masaru Touge , Yuuki Matsumoto
发明人： Ken Tanaka , Kenji Takeda , Tsutomu Nakamura , Masaru Touge , Yuuki Matsumoto
IPC分类号： H02K11/00
CPC分类号： H02K23/66 , H02K11/225 , H02P7/00 , H02P29/0241
摘要： A rotation detecting apparatus includes a direct-current motor, a power source part, an energization detecting part, and a rotation state detecting part. The direct-current motor is configured so that an inductance between a pair of brushes periodically changes in accordance with a rotation. The power source part applies a power source voltage between the pair of brushes. In the power source voltage, an alternating-current voltage is superimposed on a direct-current voltage. The energization detecting part detects an electric quantity related to the alternating-current voltage applied from the power source part to the direct-current motor. The rotation state detecting part detects at least one of a rotation angle, a rotation direction, and a rotation speed of the direct-current motor based on a change in an amplitude of an alternating-current component in the electric quantity detected by the energization detecting part.
摘要翻译：旋转检测装置包括直流电动机，电源部，通电检测部和旋转状态检测部。直流电动机被配置成使得一对电刷之间的电感根据旋转而周期性地变化。电源部分在一对电刷之间施加电源电压。在电源电压中，交流电压叠加在直流电压上。通电检测部检测与从电源部向直流电动机施加的交流电压有关的电量。旋转状态检测部基于由通电检测检测到的电量中的交流分量的振幅的变化来检测直流电动机的旋转角度，旋转方向和转速中的至少一个部分。

4. 发明授权

US07696746B2 Motion detecting apparatus 有权
标题翻译：运动检测装置
公开(公告)号：US07696746B2
公开(公告)日：2010-04-13
申请号：US11647568
申请日：2006-12-29
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Akitoshi Mizutani , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Akitoshi Mizutani , Takao Ban
IPC分类号： G01B7/30 , G01B7/14
CPC分类号： G01D5/202 , F02B39/16 , F02B2039/168 , G01P3/488 , G01P3/49
摘要： A turbine wheel of a turbocharger has a turbine blade. The turbine blade has a fin shape of which width in the rotation direction of the turbocharger is narrow, and is projected from the base portion of the turbine wheel. An inclined part of the turbine blade is inclined with respect to the rotation direction of the turbocharger. A coil is disposed so that the inclined part passes nearby as the turbine wheel rotates in a posture that an end in the center axis direction is directed toward the turbocharger. A detector detects a change in inductance, which occurs when the inclined part of the coil passes nearby.
摘要翻译：涡轮增压器的涡轮机叶轮具有涡轮叶片。涡轮叶片具有在涡轮增压器的旋转方向上的宽度窄的翅片形状，并且从涡轮机叶轮的基部突出。涡轮叶片的倾斜部分相对于涡轮增压器的旋转方向倾斜。线圈被设置成使得倾斜部分随着涡轮机叶轮以中心轴线方向的端部朝向涡轮增压器的姿态旋转而经过附近。检测器检测当线圈的倾斜部分经过附近时发生的电感变化。

5. 发明授权

US07560919B2 Rotation angle using orthogonal magnetic sensing elements in close proximity to each other 有权
标题翻译：使用正交磁感应元件彼此靠近的旋转角度
公开(公告)号：US07560919B2
公开(公告)日：2009-07-14
申请号：US11529298
申请日：2006-09-29
申请人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
发明人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.
摘要翻译：检测旋转物体的旋转角度的旋转角度检测装置包括响应于旋转物体，磁性传感器，第一磁轭和第二磁轭的旋转而产生磁场的永久磁铁。磁传感器包括一对紧密集成的磁感应元件，诸如霍尔元件，设置在永磁体周围的位置，使得感测元件中的一个感测不同于另一个的相位的磁场。第一磁轭和第二磁轭在磁传感器处形成彼此相交的两个磁路。

6. 发明申请

US20070268014A1 Motion detecting apparatus 有权
标题翻译：运动检测装置
公开(公告)号：US20070268014A1
公开(公告)日：2007-11-22
申请号：US11647568
申请日：2006-12-29
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Akitoshi Mizutani , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Akitoshi Mizutani , Takao Ban
IPC分类号： G01B7/00
CPC分类号： G01D5/202 , F02B39/16 , F02B2039/168 , G01P3/488 , G01P3/49
摘要： A turbine wheel of a turbocharger has a turbine blade. The turbine blade has a fin shape of which width in the rotation direction of the turbocharger is narrow, and is projected from the base portion of the turbine wheel. An inclined part of the turbine blade is inclined with respect to the rotation direction of the turbocharger. A coil is disposed so that the inclined part passes nearby as the turbine wheel rotates in a posture that an end in the center axis direction is directed toward the turbocharger. A detector detects a change in inductance, which occurs when the inclined part of the coil passes nearby.
摘要翻译：涡轮增压器的涡轮机叶轮具有涡轮叶片。涡轮叶片具有在涡轮增压器的旋转方向上的宽度窄的翅片形状，并且从涡轮机叶轮的基部突出。涡轮叶片的倾斜部分相对于涡轮增压器的旋转方向倾斜。线圈被设置成使得倾斜部分随着涡轮机叶轮以中心轴线方向的端部朝向涡轮增压器的姿态旋转而经过附近。检测器检测当线圈的倾斜部分经过附近时发生的电感变化。

7. 发明申请

US20060170419A1 Rotation angle detector 有权
标题翻译：旋转角度检测器
公开(公告)号：US20060170419A1
公开(公告)日：2006-08-03
申请号：US11341537
申请日：2006-01-30
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
IPC分类号： G01B7/30
CPC分类号： G01D5/24438 , G01D5/145
摘要： A rotation angle detector for detecting change in the magnetic flux has a magnetic sensor being disposed at a position in a space between an outer surface of a shaft and a periphery of the magnetic flux generation means. A supplementary magnet is also used in a space that is enclosed in a circular trace of the magnetic sensor around the shaft for even distribution of the magnetic flux generated by the magnetic flux generation means.
摘要翻译：用于检测磁通量变化的旋转角检测器具有磁传感器，该磁传感器设置在轴的外表面和磁通量产生装置的周边之间的空间中的位置。辅助磁体也用于围绕轴围绕在磁传感器的圆形轨迹中的空间，以便均匀分布由磁通量产生装置产生的磁通量。

8. 发明授权

US06867583B2 Displacement sensor 失效
标题翻译：位移传感器
公开(公告)号：US06867583B2
公开(公告)日：2005-03-15
申请号：US10292593
申请日：2002-11-13
申请人： Akitoshi Mizutani , Kenji Takeda , Masao Tokunaga , Tsutomu Nakamura , Keiichi Yasuda , Kimio Uchida , Hiroshi Takeyama , Tetsuo Hariu
发明人： Akitoshi Mizutani , Kenji Takeda , Masao Tokunaga , Tsutomu Nakamura , Keiichi Yasuda , Kimio Uchida , Hiroshi Takeyama , Tetsuo Hariu
IPC分类号： G01B7/00 , G01D5/14 , G01D11/24 , G01B7/14
CPC分类号： G01D5/145 , G01D11/245
摘要： A displacement sensor precisely detects displacement of a moving body in a rectilinear movement direction even if the moving body rotates. The sensor includes a detector and a magnet. The cross sectional area of the permanent magnet in a plane perpendicular to an axis, which extends in the rectilinear movement direction, varies in the direction of movement. The permanent magnet is magnetized in the rectilinear movement direction. The detector is located so that magnetic flux passes through a detection face of the detector substantially perpendicularly.
摘要翻译：即使移动体旋转，位移传感器精确地检测移动体在直线运动方向上的位移。传感器包括检测器和磁铁。在与直线运动方向上延伸的轴线垂直的平面中的永磁体的横截面面积在运动方向上变化。永磁体在直线运动方向被磁化。检测器位于使得磁通量基本垂直地穿过检测器的检测面。

9. 发明授权

US07339371B2 Rotation angle detector 有权
标题翻译：旋转角度检测器
公开(公告)号：US07339371B2
公开(公告)日：2008-03-04
申请号：US11341537
申请日：2006-01-30
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
IPC分类号： G01B7/30
CPC分类号： G01D5/24438 , G01D5/145
摘要： A rotation angle detector for detecting change in the magnetic flux has a magnetic sensor being disposed at a position in a space between an outer surface of a shaft and a periphery of the magnetic flux generation means. A supplementary magnet is also used in a space that is enclosed in a circular trace of the magnetic sensor around the shaft for even distribution of the magnetic flux generated by the magnetic flux generation means.
摘要翻译：用于检测磁通量变化的旋转角检测器具有磁传感器，该磁传感器设置在轴的外表面和磁通量产生装置的周边之间的空间中的位置。辅助磁体也用于围绕轴围绕在磁传感器的圆形轨迹中的空间，以便均匀分布由磁通量产生装置产生的磁通量。

10. 发明申请

US20070200562A1 Eddy current type sensor for detecting conductor 有权
标题翻译：用于检测导体的涡流型传感器
公开(公告)号：US20070200562A1
公开(公告)日：2007-08-30
申请号：US11711900
申请日：2007-02-28
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Akitoshi Mizutani , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Akitoshi Mizutani , Takao Ban
IPC分类号： G01R33/14
CPC分类号： G01V3/102
摘要： An eddy current type sensor for detecting a conductor includes a LC circuit and an oscillator. The LC circuit has a coil and a capacitor connected in parallel with the coil. The oscillator supplies an alternating current of a predetermined oscillation frequency to the LC circuit. A signal voltage outputted from the LC circuit has a first voltage when the distance between the coil and the conductor is minimum and a second voltage when the distance between the coil and the conductor is maximum. A voltage difference between the first and second voltages has a first difference at a first temperature and has a second difference at a second temperature. The first and second differences become equal to each other at a first frequency and a second frequency. The oscillation frequency is set close to the first frequency or the second frequency.
摘要翻译：用于检测导体的涡流型传感器包括LC电路和振荡器。 LC电路具有与线圈并联连接的线圈和电容器。振荡器向LC电路提供预定振荡频率的交流电。当线圈和导体之间的距离最小时，从LC电路输出的信号电压具有第一电压，当线圈和导体之间的距离最大时，第二电压。第一和第二电压之间的电压差在第一温度下具有第一差异，并且在第二温度下具有第二差。第一和第二差异在第一频率和第二频率处彼此相等。振荡频率设定为接近于第一频率或第二频率。

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