Title:
METHOD AND DEVICE FOR DETECTING SCALE OF HOT ROLLED PLATE
Document Type and Number:
Japanese Patent JP3963408
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To detect the presence of the scale according to luminance distribution or temperature distribution on the surface of the hot rolled plate by a thermal image measuring device using a CCD camera, and to correctly detect the presence of the scale without the influence of water screen and waterdrops on the surface of the plate.
SOLUTION: By measuring a thermal image on the surface of the flying hot rolled plate for each specific time by the CCD camera, the luminance distribution or the histogram of the temperature distribution calculated from the luminance distribution, is found. By detecting the maximum value and the minimum value of luminance or temperature on the surface of the plate from the histogram, the presence of the scale attached to the surface of the plate is detected from a difference between the maximum value and the minimum value.
Inventors:
Masakatsu Tsuchiya
Park Paperweight
Park
Event origin
Park Paperweight
Park
Event origin
Application Number:
JP34418597A
Publication Date:
August 22, 2007
Filing Date:
November 28, 1997
Export Citation:
Assignee:
Tokai Carbon Co., Ltd.
Pohang Sogo Steel Co., Ltd.
Pohang Sogo Steel Co., Ltd.
International Classes:
B21B45/08; G01K13/06; B21B45/06; B21C51/00; G01J5/00; G01J5/02; G01J5/10; G01N21/89; G01N21/892; (IPC1-7): B21B45/06; B21C51/00; G01J5/10; G01K13/06; G01N21/89
Domestic Patent References:
| JP679337A | ||||
| JP7270130A | ||||
| JP67845A |
Attorney, Agent or Firm:
Yasuo Fukuda
Kenji Akatsuka
Kenji Akatsuka
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