| 摘要 |
The invention relates to a method for measuring the volume or the end face diameter of a tree trunk and for quality control. The volume is measured in a prior known manner with laser gauges capable of measuring top and butt diameters as well as a length, which are used for calculating a volume. For quality control, the end face of a tree trunk is illuminated with red light and blue light, and light coming from the end face of the tree trunk is received by a color matrix camera (5). From the red/blue ratio in the camera's (5) signals is identified the proportion of rot or other defect in the end face of a tree trunk. The camera signals can be used for calculating the end face diameters of tree trunks. The method is integrated with a pulpwood pretreatment process upstream of debarking. |
