CAMBER AMOUNT MEASUREMENT METHOD OF STEEL PLATE, CAMBER AMOUNT MEASUREMENT DEVICE OF STEEL PLATE AND CALIBRATION METHOD OF CAMBER AMOUNT MEASUREMENT DEVICE OF STEEL PLATE

摘要

PROBLEM TO BE SOLVED: To provide a camber amount measurement method of a steel plate which can exactly measure a camber amount of the steel plate by enhancing the synthesizing accuracy of a photographed image, a camber amount measurement device of the steel plate and a calibration method of the camber amount measurement device of the steel plate.;SOLUTION: In a camber amount measurement method of a steel plate for photographing an upper face of the steel plate a plurality of times by dividing photographed images to a transportation direction, acquiring a synthesized image by combining the obtained photographed images, and calculating a camber amount of the steel plate from the synthesized image, the camber amount measurement method performs photographing so that an overlapped range exists in an n-th photographed image (here, N is a positive integer), and in an (N+1)th photographed image, and makes a reference line of the steel plate in the overlapped range of the N-th photographed image and a reference line of the steel plate in the overlapped range of the (N+1)th photographed image overlap on each other, thus acquiring the synthesized image.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2018,JPO&INPIT