赤熱鋼板用光学的幅計の開発

抄録

An optical width gauge for hot plates has been developed, which can be installed near the rolling mill without backlight equipment. The device consists of solid state linear image sensors, a signal processor and a microcomputer. Edge points of plates are detected by finding the steepest points in the video signals of the radiant images. Furthermore, highly resolved edge data can be derived from the discrete differential signals by calculating the quadratically interpolated peak points of the signals. The edge data are stable and accurate even if the temperatures of the objects are varied.
This paper describes the method of detection for plate edges and experimental data concerned with the high resolving power. An application of the equipment is given for the camber display system which has been installed near the finishing mill in the plate shop and which displays the camber shape of plates immediately after finish rolling and gives useful information to mill operaters.