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    • 5. 发明申请
    • BASE STABILIZATION SYSTEM
    • 基础稳定系统
    • WO2002088687A1
    • 2002-11-07
    • PCT/US2002/006249
    • 2002-03-01
    • CYMER, INC.LUBLIN, LeonardWARKENTIN, David, J.PLETNER, BaruchRULE, John, A.
    • LUBLIN, LeonardWARKENTIN, David, J.PLETNER, BaruchRULE, John, A.
    • G01N21/86
    • F16F15/02F16F15/005F16F15/0275F16F2230/08G03F7/70725G03F7/70825G03F7/70833G03F7/709
    • A system that provides a base stabilization system for controlling motion of a controlled structure. The system includes a ground structure such as the floor of a fabrication facility and the controlled structure includes a base (405) on which equipment is mounted. The system also includes at least three air mounts (480) and a plurality of actuators (430) all attached to the ground structure and to the base to isolate the base from the ground structure and to stabilize the base. The system includes a plurality of position and acceleration sensors (420) each of which are co-located with a corresponding actuator. The system also includes a multi-input, multi output feedback control system comprising a computer processor programmed with a feedback control algorithm for controlling each of the actuators based on feedback signals from each of the sensors. The co-location of the sensors with the actuators avoids serious problems resulting from higher order vibration modes.
    • 提供用于控制受控结构的运动的基本稳定系统的系统。 该系统包括诸如制造设备的底板的接地结构,并且受控结构包括其上安装有设备的基座(405)。 该系统还包括至少三个空气安装件(480)和多个致动器(430),所述致动器全部附接到地面结构和基座,以将基座与地面结构隔离并稳定底座。 该系统包括多个位置和加速度传感器(420),每个位置和加速度传感器与对应的致动器共同定位。 该系统还包括多输入多输出反馈控制系统,其包括用基于来自每个传感器的反馈信号控制每个致动器的反馈控制算法编程的计算机处理器。 传感器与执行器的共同位置避免了由较高阶振动模式引起的严重问题。