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1. 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。

2. 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。

3. 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。

4. 发明授权

US07612557B2 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：US07612557B2
公开(公告)日：2009-11-03
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： G01B7/14
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。

5. 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。

6. 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。

7. 发明申请

US20110178673A1 WEIGHT DETECTION DEVICE FOR VEHICLE AND METHOD FOR DETECTING WEIGHT OF VEHICLE COMPONENT 审中-公开
标题翻译：车辆重量检测装置及检测车辆重量的方法
公开(公告)号：US20110178673A1
公开(公告)日：2011-07-21
申请号：US12972872
申请日：2010-12-20
申请人： Tsutomu Nakamura , Kenji Takeda , Yasuyuki Itoh
发明人： Tsutomu Nakamura , Kenji Takeda , Yasuyuki Itoh
IPC分类号： G06F19/00
CPC分类号： G01G3/16 , G01G19/08
摘要： A vehicle includes a wheel and a vehicle body connected with each other via a suspension having a spring. An oscillation detection unit detects an oscillation of the vehicle body in forward and backward directions. A resonance frequency detection unit detects a resonance frequency of the vehicle body according to a detection result of the oscillation detection unit. A weight determination unit determines a weight of the vehicle body according to the resonance frequency detected by the resonance frequency detection unit.
摘要翻译：车辆包括通过具有弹簧的悬架彼此连接的车轮和车体。振动检测单元检测前后方向的车身振动。谐振频率检测单元根据振荡检测单元的检测结果检测车身的共振频率。重量确定单元根据由共振频率检测单元检测的共振频率来确定车体的重量。

8. 发明授权

US07352173B2 Turning angle detector 失效
标题翻译：转角检测器
公开(公告)号：US07352173B2
公开(公告)日：2008-04-01
申请号：US10821934
申请日：2004-04-12
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
IPC分类号： G01B7/14 , G01B7/30
CPC分类号： G01D5/145
摘要： External magnetic members are provided outside the outer periphery of a rotor. When the rotor is positioned around its turning angle of 70 degrees, part of the magnetic fluxes generated by magnets pass through the external magnetic members. This makes it possible to reduce the magnetic fluxes passing through Hall ICs around the turning angle of 70 degrees, thereby linearizing the change characteristic of the magnetic flux density. Thus, it is possible to generally linearize the change characteristic of the density of the magnetic fluxes through the Hall ICs 7, with the detectable angle range kept wide.
摘要翻译：外部磁性构件设置在转子的外周的外侧。当转子围绕其转动角度70度定位时，由磁体产生的磁通的一部分通过外部磁性部件。由此，能够将通过霍尔IC的磁通减小70度的转动角度，从而使磁通密度的变化特性线性化。因此，可以通过霍尔IC7大致线性化磁通密度的变化特性，其中检测角度范围保持较宽。

9. 发明授权

US06501265B2 Angular position detection device having linear output characteristics 有权
标题翻译：具有线性输出特性的角位置检测装置
公开(公告)号：US06501265B2
公开(公告)日：2002-12-31
申请号：US09811577
申请日：2001-03-20
申请人： Tsutomu Nakamura , Toshihisa Ishihara , Kenji Takeda , Yoshiyuki Kono
发明人： Tsutomu Nakamura , Toshihisa Ishihara , Kenji Takeda , Yoshiyuki Kono
IPC分类号： G01B714
CPC分类号： G01D5/145
摘要： An angular position detection device has a rotor that comprises two magnets and a primary yoke, and a stator that comprises a pair of auxiliary yokes and a magnetism detection element. The rotor is fixed to a rotary shaft of an object to be detected. The primary yoke forms a magnetic circuit in a ring, and the magnets are configured so that the intensity distribution of the magnetic field is asymmetric with respect to the center of rotation of the rotor. The magnetism detection element is placed in a gap between the auxiliary yokes. This stator is disposed in the inside of the rotor so that an air gap between the rotor and the stator varies gradually in the circumferential direction. Thus, the magnetism detection element is enabled to produce a linear output over a range wider than 180°.
摘要翻译：角位置检测装置具有包括两个磁体和一个主磁轭的转子，以及包括一对辅助磁轭和磁性检测元件的定子。转子固定在待检测物体的旋转轴上。主轭在环中形成磁路，并且磁体被配置为使得磁场的强度分布相对于转子的旋转中心是不对称的。磁性检测元件被放置在辅助轭之间的间隙中。该定子配置在转子的内部，使得转子和定子之间的气隙在圆周方向上逐渐变化。因此，磁检测元件能够在宽于180°的范围内产生线性输出。

10. 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。

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