微型穿孔轨迹与材料(1)传送方向(4)基本平行。每条微型穿孔轨迹的测量包括探测搜索、定位和孔隙测量。各条轨迹的测量都是按顺序进行的。在搜索期间还可以测定材料的边缘位置,一个光学测量装置(5-8)沿材料来回移动,然后根据移动位置确定透明数据。这种光学测量装置可以用于测量香烟纸、薄 Micro perforation trajectory and material (1) transmission direction (4) is basically parallel. The measurement of each micro-perforation trace includes probe search, positioning and pore measurement. The measurement of each track is carried out in sequence. During the search it is also possible to determine the edge position of the material, an optical measuring device (5-8) to move back and forth along the material and then to determine the transparent data according to the position of the movement. This optical measuring device can be used to measure cigarette paper, thin