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    • 15. 发明授权
    • Apparatus for separating an entrained solid from a gas
    • 用于将夹带的固体与气体分离的装置
    • US4253857A
    • 1981-03-03
    • US82301
    • 1979-10-05
    • C. Donald Fisher
    • C. Donald Fisher
    • B01D45/14
    • B01D45/14
    • In paper-making operations and the like, fibers of wood are frequently transported through piping as an entrainment in steam. An apparatus is disclosed for separating such entrainment and removing the fibers at one station and the steam at another station. Rotating blades give the entrainment a circular or rotating action whereby the heavier fibers move outwardly by centrifugal force to contact the wall from which the blades scrape the fibers and hurl them to discharge. The fiber-free steam is removed along an axial line perpendicular to the direction of movement of the separated fibers under the influence of a second set of blades.
    • 在造纸操作等中,木材纤维经常通过管道传送,作为蒸汽夹带。 公开了一种用于在一个站处分离这种夹带和去除纤维的装置以及在另一个站处的蒸汽。 旋转刀片产生夹带圆形或旋转动作,由此较重的纤维通过离心力向外移动以接触叶片刮擦纤维并使其排出的壁。 在第二组叶片的影响下,沿着与分离的纤维的运动方向垂直的轴线移除无纤维蒸汽。
    • 19. 发明申请
    • Acquisition, pointing, and tracking architecture for laser communication
    • 激光通信的采集,指向和跟踪架构
    • US20070031151A1
    • 2007-02-08
    • US11194741
    • 2005-08-02
    • James CunninghamDean GrinchDonald Fisher
    • James CunninghamDean GrinchDonald Fisher
    • H04B10/00
    • H04B10/1127H04B10/1123
    • A technique for acquiring and tracking terminals in a free-space laser communication system involves exchanging beacon laser beams between the terminals to acquire and then track the terminals such that data laser beams exchanged by the terminals for communication are steered based on feedback from detection of the beacon laser beams. The beacon laser beams used for acquisition have a greater beam divergence than those used for tracking. Gimbals provide coarse steering of the data laser beams, and steering mirrors provide fine steering. GPS position data exchanged via an RF link can be used for initial pointing of the beacon laser beams for acquisition. The beacon laser beams can be chopped such that all terminals can use the same beacon wavelength and are distinguished by using different chopping frequencies. By detecting a chopped signal, the position sensor detector can be AC coupled to reduce sensitivity to solar radiation and glint.
    • 用于在自由空间激光通信系统中获取和跟踪终端的技术包括在终端之间交换信标激光束以获取并跟踪终端,使得由终端用于通信的交换的数据激光束被基于来自检测的反馈 信标激光束。 用于采集的信标激光束具有比用于跟踪的光束发散更大的光束发散度。 万向表提供数据激光束的粗略转向,而转向镜提供精确的转向。 通过RF链路交换的GPS位置数据可以用于用于采集的信标激光束的初始指向。 信标激光束可以被切碎,使得所有终端可以使用相同的信标波长,并且通过使用不同的斩波频率来区分。 通过检测斩波信号,位置传感器检测器可以被AC耦合以降低对太阳辐射和闪烁的敏感度。