会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Angular position measuring device
    • 角位置测量装置
    • US06476600B2
    • 2002-11-05
    • US09769517
    • 2001-01-26
    • Yoshiyuki KonoTakashi HamaokaTakamitsu KubotaTakuya FukitsukeTetsuya Aoki
    • Yoshiyuki KonoTakashi HamaokaTakamitsu KubotaTakuya FukitsukeTetsuya Aoki
    • G01B714
    • G01D5/145
    • A compact and high-accuracy angular position measuring device is provided which has magnets installed in a rotor core and a magnetic sensor installed in a stator core. The magnetic sensor produces an output indicative of an angular position of the rotor core as a function of a change in density of magnetic flux produced by the magnets. The magnets are so arranged in the rotor core that the same poles are opposed magnetically to produce a repellent force in magnetic fields of the magnets, thereby causing the magnetic flux to go to the magnetic sensor through the rotor core. This eliminates the need for an air gap between the stator core and the poles of the magnets which is formed in a conventional device, thus allowing the device to be reduced in size and an error in output of the device to be decreased.
    • 提供一种紧凑且高精度的角位置测量装置,其具有安装在转子芯中的磁体和安装在定子芯中的磁传感器。 磁传感器产生表示作为磁体产生的磁通密度变化的函数的转子芯的角位置的输出。 磁体设置在转子芯中,使得相同的磁极与磁体相反地产生驱动力,从而使得磁通量通过转子磁芯进入磁传感器。 这消除了在常规装置中形成的定子铁芯和磁体的极之间的空气间隙的需要,从而允许装置的尺寸减小并且装置的输出误差减小。
    • 9. 发明授权
    • Permanent magnet type position sensor
    • 永磁式位置传感器
    • US07893688B2
    • 2011-02-22
    • US12181783
    • 2008-07-29
    • Takashi KawashimaKimio UchidaYukinobu KajitaTatsuya KitanakaKoichiro MatsumotoYoshiyuki KonoHisataka OkadoHiroyuki Shintani
    • Takashi KawashimaKimio UchidaYukinobu KajitaTatsuya KitanakaKoichiro MatsumotoYoshiyuki KonoHisataka OkadoHiroyuki Shintani
    • G01B7/14
    • G01D5/145
    • 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.
    • 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。