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    • 10. 发明授权
    • Method and device for measurement with laser beam
    • 用激光束测量的方法和装置
    • US4874238A
    • 1989-10-17
    • US66423
    • 1987-06-25
    • Tatsuyuki OchiNobuo TanakaKohei Mio
    • Tatsuyuki OchiNobuo TanakaKohei Mio
    • G01B11/03G01C15/00G01S1/70G01S5/16
    • G01C15/002G01S1/70G01S5/16
    • A method and a device for measuring an angle required for ascertaining the coordinates of a measuring point comprise two laser beams which are rotatingly emitted from a reference point in opposite directions at the same angular velocity and, at a measuring point, time intervals for receiving the two laser beams are obtained and used for the ascertaining of the measuring point coordinates. The laser device generates two laser beams rotating in opposite angular directions at the same angular velocity. The laser beams are reflected twice in a pentaprism, a compound prism and a rectangular mirror. Errors for mounting the prisms and mirror are thus eliminated resulting in extremely small rotation irregularities. In a method and a device for measuring an angle in 3-dimensional space, laser beams in sectors and a sensor for detecting said laser beam are used; thereby, various angles required for determining coordinates in 3-dimensional space can be measured.
    • 用于测量确定测量点坐标所需的角度的方法和装置包括两个激光束,它们以相同的角速度在相反方向上从参考点旋转发射,并且在测量点处接收时间间隔的时间间隔 获得两个激光束并用于确定测量点坐标。 激光装置以相同的角速度产生以相反角度方向旋转的两束激光束。 激光束以五棱镜,复合棱镜和矩形镜反射两次。 因此消除了用于安装棱镜和反射镜的错误,导致极小的旋转不规则。 在用于测量三维空间中的角度的方法和装置中,使用扇区中的激光束和用于检测所述激光束的传感器; 从而可以测量确定三维空间坐标所需的各种角度。