Title:
RAIL CROSS SECTION MEASURING DEVICE
Document Type and Number:
Japanese Patent JP2001141427
Kind Code:
A
Abstract:
To obtain a rail cross section measuring device capable of performing measurements even if a slit beam is separated.
A rail 1 is irradiated with a plurality of slit beams 13a and 13b of different directions of irradiation to pick up images 15a and 15b and to obtain the cross sectional images of the rail 1. Its distinction is performed by a laser beam and an interference filter in combination. Then the data 41a of the picked-up images is subjected to coordinate transformation processing, etc., and a plurality of groups of coordinate transformation parameters 44a are held correspondingly to the plurality of slit beams.
Inventors:
NAWATA AKISHI
Application Number:
JP32617599A
Publication Date:
May 25, 2001
Filing Date:
November 16, 1999
Export Citation:
Assignee:
TOKIMEC INC
International Classes:
E01B35/00; B61K9/08; G01B11/24; G01B11/245; G01B21/00; (IPC1-7): G01B11/24; B61K9/08; E01B35/00; G01B11/245; G01B21/00
Attorney, Agent or Firm:
Satou Kaori