Method for measuring dog-bone profile of bar using both CCD camera and laser slit beam in hot strip mill

摘要

The invention dogbone by calculating the profile quantitatively calculated as the line width spread prediction extent by improving the width setting model by dogbone: to improve the prediction accuracy and the width control level of (RSU Roughing Mill Set-Up) to provide a de-ssissi dog in a hot-rolled sheet using a camera and a laser slit light the profile measuring method it is an object.; The present invention for achieving the object above includes: a drive-side and work-side laser slit light generator for each generating laser slit light (5) at the edge device (1) of the hot-rolled material (3), the hot-rolled material (3 ) the drive side and the CCD camera (2) for work-up of the scanning lines 9 of each Rimed laser slit light (5) on the side surface, respectively, said CCD (Charge Coupled Device) photographing and at the same time controlling the camera (2) of and the image acquisition device (7) for obtaining an image by the laser slit image processing the image acquired by the laser controller 8 and the image acquisition device (7) for controlling a light generating device (1) (image processing) It includes a video processing system 4 to calculate the drive-side and work-side dogbone (dog bone) of the profile of the hot-rolled material (3) quantitatively.