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    • 1. 发明授权
    • High accuracy angular resolution and measurement
    • 高精度角分辨率和测量
    • US07113289B1
    • 2006-09-26
    • US10773067
    • 2004-02-05
    • Daniel A. BearyJames D. Williams
    • Daniel A. BearyJames D. Williams
    • G01S17/06
    • G01S17/87G01S3/784G01S5/16G01S7/497G01S7/4972
    • A system and method for use in obtaining precise positional information relating to one or more points. The points may comprise key locations on a large structure allowing for the geometry of the structure to be assessed based on the positional information. In one embodiment, a high accuracy angular resolution and measurement system includes a laser beam source (110), a bi-directional acousto-optic modulator (112), and an optical detector (104). The position of the optical detector (104) is determinable from deflection angles (120, 122) of the laser beam (106) when the laser beam (106) is deflected by the bi-directional acousto-optic modulator (112) in a direction corresponding to one of a plurality of illumination locations (140) coinciding with the position of the optical detector (104) within an illumination region (142) defined by the illumination locations (140).
    • 一种用于获得与一个或多个点相关的精确位置信息的系统和方法。 点可以包括大结构上的关键位置,允许基于位置信息来评估结构的几何形状。 在一个实施例中,高精度角度分辨率和测量系统包括激光束源(110),双向声光调制器(112)和光学检测器(104)。 当激光束(106)被双向声光调制器(112)偏转时,光检测器(104)的位置可由激光束(106)的偏转角(120,122)确定,方向 对应于在由照明位置(140)限定的照明区域(142)内与光学检测器(104)的位置重合的多个照明位置(140)中的一个。