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1. 发明申请

WO1995027893A1 METHOD OF MEASURING FIBER ORIENTATION ON SURFACE OF PAPER 审中-公开
标题翻译：测量纸张表面光纤方位的方法
公开(公告)号：WO1995027893A1
公开(公告)日：1995-10-19
申请号：PCT/JP1995000668
申请日：1995-04-06
申请人： NIPPON PAPER INDUSTRIES CO., LTD. , TODOROKI, Hidenobu , ABE, Yuji , SAKAMOTO, Akira , TAKEUCHI, Nobuo
发明人： NIPPON PAPER INDUSTRIES CO., LTD.
IPC分类号： G01N21/21
CPC分类号： B41J11/009 , G01N21/21 , G01N21/86 , G01N2021/8681
摘要： A method of measuring the surface fiber orientation of paper, rather than the average fiber orientation including its inner layers. Incident light (Li) is emitted from a projector (6) to a paper surface (1a) of paper (1) to be measured at a predetermined angle of incidence ( theta i), and it is reflected at an angle of regular reflection ( theta o) equal to the angle of incidence ( theta i) and received by a photodetector (7). The incident light contains main linear-polarized light having a plane of vibration perpendicular to the plane of incidence and reflection that includes the path of incident light and reflected light. The reflected light (Lo) received by the photodetector contains only the main linear-polarized light. The paper surface (1a) is inclined at a flat angle ( alpha ) with the intersection between the plane of incidence and reflection and the paper surface (1a) being the center axis, and paper (1) is then rotated relatively to the plane incidence and reflection with a line, which passes through the center of the beam incident to the paper surface (1a) and is vertical to the paper surface (1a), as the center axis of rotation. Fiber orientation of the surface of paper (1) is determined from the intensity of reflected light (Lo) received by the receiver (7) and corresponding to the rotating angle of paper (1).
摘要翻译：测量纸的表面纤维取向的方法，而不是包括其内层的平均纤维取向。入射光（Li）从投影仪（6）发射到纸（1）的纸表面（1a），以预定的入射角（θi）被测量，并以正反射的角度 θo）等于入射角（θi）并由光电检测器（7）接收。入射光包含具有垂直于包括入射光和反射光的入射面和反射平面的振动平面的主要线性偏振光。由光检测器接收的反射光（Lo）仅包含主线偏振光。纸张表面（1a）以入射平面和反射面之间的交点与纸面（1a）为中心轴线的平角（α）倾斜，然后纸（1）相对于平面入射以及穿过入射到纸张表面（1a）并且垂直于纸张表面（1a）的光束的中心的线的反射作为中心旋转轴线。由纸张（1）的表面的纤维取向由接收器（7）接收的反射光（Lo）的强度和纸张（1）的旋转角度决定。

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