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    • 7. 发明授权
    • Device for measuring the width of timber
    • 用于测量木材宽度的装置
    • US4123169A
    • 1978-10-31
    • US768402
    • 1977-02-14
    • Heikki MerilainenUlf J. G. Strom
    • Heikki MerilainenUlf J. G. Strom
    • G01B11/04G01B11/02
    • G01B11/046
    • The width of a piece of timber, such as a board is measured with a device including a laser tube emitting laser beam to be reflected by a rotatable mirror polyhedron and a parabolic reflector into a direction along the board, mirror rasters being provided at intervals along the board so as to reflect laser beam pulses onto the board, each raster including a group of mirrors reflecting the beam pulses onto spots of the board that are spaced apart laterally across the board, and detecting means being provided for receiving the pulses reflected from the board surface in order to obtain information about the board width. Preferably, the pulses received by the detectors are transferred to a computer which calculates, in a manner known per se, the optimal sawing width for the board. Instead of the reflector, lens means may be used for directing the beam along the board.
    • 一块木材(例如板)的宽度用包括激光管的装置测量,该激光管发射激光束,以便由可旋转的镜面多面体和抛物面反射器反射到沿着该板的方向上,每隔一段时间间隔地设置镜面光栅 板,以便将激光束脉冲反射到板上,每个光栅包括一组镜子,将反射束脉冲的光束脉冲反射到横跨该板的间隔开的板上的点上,以及检测装置,用于接收从 板表面,以获得有关板宽的信息。 优选地,由检测器接收的脉冲被传送到计算机,该计算机以本身已知的方式计算电路板的最佳锯切宽度。 代替反射器,透镜装置可以用于沿着板引导光束。