DEVICE FOR MEASURING TEMPERATURE DISTRIBUTION IN WIDTH DIRECTION OF ROLLED MATERIAL

摘要

PURPOSE: To enable temperature distribution in width direction of a rolled material to be detected highly precisely and accurately by combining a temperature detector which measures temperature distribution in axial direction of the rolled material and a CCD camera which measures a plate width of the rolled material. ;CONSTITUTION: A rotary mirror 6 within a scanning unit 2 of a scanning-type radiation thermometer scans a surface of a strip 1 at a scanning angle of approximately 60 degrees, converts temperature distribution in axial direction of the strip 1 which is detected by a detection portion 8 of a silicon cell into an electrical signal, amplifies it, and then feeds it to an operation portion 10. On the other hand, a CCD camera control portion 12 detects a plate width value of the strip 1 with an accuracy of ±0.125mm according to an image of both edge portions of the strip 1 which are input from CCD cameras 3 and 4 and then outputs it to a signal-processing device 11. The device 11 performs signal processing of a temperature distribution signal in width direction which is input from the operation portion 10 and the plate width value which is input from the control portion 12 according to a distance from a line center which is an installation reference and then accurately measures the temperature distribution in width direction of the strip 1 instantly.;COPYRIGHT: (C)1993,JPO&Japio