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Patent Searching and Data


Title:
DETECTOR OF CONFIGURATION OF SECTION OF STEEL PLATE
Document Type and Number:
Japanese Patent JP62043507
Kind Code:
A
Abstract:

PURPOSE: To detect the configuration of the section of a steel plate with a high accuracy by constituting a detector by a photosensitive element, a rotary reflecting mirror, position detecting means, arithmetic means and the like.

CONSTITUTION: When a steel plate 10 is conveyed to a roller table 14, central portion detecting unit 18 and a side detecting unit 20 arranged approximately in a line along the transverse direction of the steel plate are operated at the same time. The unit 18 measures a distance L1 between the unit 18 and the approximately central portion of steel plate 10 and the unit 20 measures a distance P between the reference position of photosensitive element 42 and a laser beam receiving point and the rotary angle of a rotary mirror 32, measured data being fed to arithmetic unit 48. The unit 48 conducts an operation to calculate coordinates L and R from a distance R in the direction of the width of the steel plate and a distance L from the focal point of a lens. Thus, the unit 20 detects the configurations of the surface portions of the margins of the steel plate 10 in its width direction and measures the range of the predetermined regions.


Inventors:
Ikegami, Kazunari
Kurihara, Takeshi
Kodoi, Akio
Terauchi, Takumasa
Masuda, Kenichi
Application Number:
JP1985000183655
Publication Date:
February 25, 1987
Filing Date:
August 21, 1985
Export Citation:
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Assignee:
NIPPON KOKAN KK
International Classes:
G01B11/24; B21B37/00; B21B38/02; G01B11/245; (IPC1-7): B21B37/00; G01B11/24