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
    • 4. 发明授权
    • Method of and apparatus for controlling magnetic levitation
    • 磁悬浮控制方法及装置
    • US5020444A
    • 1991-06-04
    • US517745
    • 1990-05-02
    • Akihiro FurutaniJunichi OkadaTomoaki Tanimoto
    • Akihiro FurutaniJunichi OkadaTomoaki Tanimoto
    • B65G54/02B60L13/10F16C39/06
    • F16C32/0444
    • The present invention relates to an improvement in a method and an apparatus for magnetic levitation of a linear slider through a PI control action. When the slider is horizontally moved while levitated vertically by two fixed magnetic forces, the angle of inclination of the slider cannot be settled in a preset position because of a control delay caused by integral action, which results in an angle offset. In order to eliminate the offset, a signal which is the sum of an angle deviation and a delay compensation signal that is proportional to the product of the velocity of the slider and an integral time is used as an error signal to settle the angle of inclination. The vertical position of the slider is controlled so that the sum of the magnetic forces applied to the slider balances the weight of the slider.
    • 本发明涉及通过PI控制动作对线性滑块的磁悬浮的方法和装置的改进。 当滑块通过两个固定磁力垂直悬浮时水平移动时,由于由积分作用导致的控制延迟,滑块的倾斜角度不能稳定在预设位置,这导致角度偏移。 为了消除偏移,使用作为与滑块的速度和积分时间的乘积成比例的角度偏差和延迟补偿信号之和的信号作为误差信号来设定倾斜角 。 控制滑块的垂直位置使得施加到滑块的磁力的总和平衡滑块的重量。
    • 6. 发明授权
    • Ultra-precise positioning system
    • 超精密定位系统
    • US5079493A
    • 1992-01-07
    • US531229
    • 1990-05-31
    • Shigeru FutamiAkihiro Furutani
    • Shigeru FutamiAkihiro Furutani
    • G05D3/00G05D3/12H01L21/68
    • H01L21/68
    • An ultra-precise positioning system includes a movable part, a rolling guide, a fixed part in supporting contact with the rolling guide, and a driving device for driving the movable part. The driving device includes a non-contact motor which applies a force to the movable part without touching engagement with the movable part. The system also includes a position measuring device for measuring a position of the movable part, a position reference generator for generating a reference position of the movable part, and a positioning control device for controlling the position of the movable part by comparing the measured position to the reference position, the positioning control device having a first control mode in a first operational region in which a resistance force arising due to displacement of the movable part varies in magnitude as a function of the force applied to the movable part by the driving device, and a second control mode in a second operational region in which frictional resistance force of the rolling guide is in a saturated condition and normal rolling of the rolling guide takes place, so that a resistance force resisting the force applied to the movable part by the driving device is substantially constant.