FURNACE WALL SHAPE MEASURING DEVICE, FURNACE WALL SHAPE MEASURING SYSTEM AND FURNACE WALL SHAPE MEASURING METHOD

WIPO Patent Application WO/2012/090758

A1

Disclosed is a furnace wall shape measuring device, wherein laser light for measuring the concave-convex shape of surfaces of furnace walls and self-emitting light of the furnace walls are acquired at the same time but not interfere with each other, and the measurable range in the direction perpendicular to the furnace wall surfaces and the irradiation range of the laser light are widened. The furnace wall shape measuring device is provided with: slit laser light sources (4) emitting slit-like laser light; mirrors for laser light (5) reflecting the laser light and irradiating the furnace wall surfaces with the laser light through windows (2); mirrors for capturing images (6) reflecting reflected light of the furnace wall surfaces by the irradiation of the laser light and self-emitting light emitted by the furnace wall surfaces, the both light incoming into a thermal insulation protective box (3) through the windows (2); and an imaging device (8) capturing the self-emitting light and the reflected light reflected from the mirrors for capturing images (6) through an optical filter (7), all of which are arranged inside the thermal insulation protective box (3) having the slit-like windows (2).

YAMAHIRA NAOSHI (JP)
KODAMA TOSHIFUMI (JP)

PCT/JP2011/079352

July 05, 2012

December 19, 2011

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JFE STEEL CORP (JP)
YAMAHIRA NAOSHI (JP)
KODAMA TOSHIFUMI (JP)

G01B11/25; F27D1/00; F27D21/02

JP2004077019A	2004-03-11
JPH0454208Y2	1992-12-18
JPH0791931A	1995-04-07
JP2000266475A	2000-09-29
JP2004077019A	2004-03-11

See also references of EP 2660558A4

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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