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    • 6. 发明授权
    • Circuit for driving a plant such as a mechanical beam scanner and related system and method
    • 用于驱动诸如机械光束扫描器和相关系统和方法的设备的电路
    • US07567879B2
    • 2009-07-28
    • US11266584
    • 2005-11-02
    • John R. LewisWilliam StandingGary MansouriTze SiuJari Honkanen
    • John R. LewisWilliam StandingGary MansouriTze SiuJari Honkanen
    • G01D18/00G01D21/00
    • G05B5/01G05B13/042
    • A device for driving a plant such as a beam scanner includes a memory, drive-signal generator, and a calibrator. The memory stores data corresponding to the drive signal, and the generator generates the drive signal from the data and couples the drive signal to the plant. The calibrator measures a response of the plant to the drive signal, calculates a difference between the measured response and a corresponding target response, and reduces the difference by altering the drive signal. Such a device can force the output response of the driven plant to equal a target output response, or to be sufficiently close to the target response for a particular application, while the device is operating in an open-loop configuration. Furthermore, while operating in an open-loop configuration, such a device often has a greater stability margin and greater noise immunity than a comparable device that operates in a closed-loop configuration.
    • 用于驱动诸如光束扫描仪的设备的装置包括存储器,驱动信号发生器和校准器。 存储器存储对应于驱动信号的数据,并且发生器从数据生成驱动信号并将驱动信号耦合到工厂。 校准器测量工厂对驱动信号的响应,计算测量响应和相应的目标响应之间的差异,并通过改变驱动信号来减小差值。 当设备以开环配置工作时,这样的设备可以迫使被驱动设备的输出响应等于目标输出响应,或者足够接近特定应用的目标响应。 此外,在以开环配置工作的情况下,与在闭环配置中操作的类似设备相比,这种设备通常具有更大的稳定性裕度和更大的抗噪声能力。