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    • 8. 发明授权
    • Angular orientation measuring apparatus
    • 角度方位测量装置
    • US3836258A
    • 1974-09-17
    • US31548672
    • 1972-12-15
    • GRUMMAN AEROSPACE CORP
    • COURTEN HMATTAL J
    • G01B11/26
    • G01B11/26
    • An optical device using a wedge deviation technique for the measurement of the angular orientation about the axis of rotation of one body relative to another. The device employs a passive target, which may be a linear reticle, on one body and optical measuring means on the second body. The measuring means has an optical element such as a prism assembly to split the image of spaced apart portions of the linear target into two transposed halves which are viewed by suitable means such as a telescope. An optical wedge assembly centered in the line of sight on the axis of rotation between the telescope and the target can be used as the optical element. When the target reticle lies in the plane described by the optically deviated split field of view of the telescope, an unbroken line is perceived through the telescope. When rotation about the line of sight occurs in one body with respect to the other, a linear displacement of one half of the split image of the target with respect to the other occurs. The amount of rotation of the optical measuring means required to bring the split image back into coincidence is correlated against a calibrated scale to give an indication of the amount of angular displacement about the axis of rotation that had occured. In a further embodiment, an arrangement of mirrors rather than a wedge assembly is used to produce the split image in the optical measuring means.
    • 一种使用楔形偏差技术的光学装置,用于测量围绕一个体相对于另一个体的旋转轴线的角度取向。 该装置在一个主体上使用可以是线性掩模版的被动目标和第二主体上的光学测量装置。 测量装置具有诸如棱镜组件的光学元件,以将线性目标物的间隔部分的图像分成两个通过诸如望远镜的合适装置观察的两个转置的半部。 在望远镜和目标之间的旋转轴线上的视线中心的光楔组件可以用作光学元件。 当目标掩模版位于由望远镜的光学偏斜分割视野描述的平面中时,通过望远镜感知到一条完整的线。 当相对于另一个体在一个体内发生围绕视线的旋转时,发生目标的分割图像的一半相对于另一个的线性位移。 使分割图像回到一致所需的光学测量装置的旋转量与校准的刻度相关,以给出围绕已经发生的旋转轴线的角位移量的指示。 在另一个实施例中,使用镜子而不是楔形组件的布置来在光学测量装置中产生分割图像。