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JRM Vol.12 No.1 pp. 18-23
doi: 10.20965/jrm.2000.p0018
(2000)

Paper:

Measuring Device for Large Piping Structures

Kazuo Ichimura*, Kiyohide Yui* and Takakazu Ishimatsu**

*Nagasaki Shipyard & Machinery Works, Mitsubishi Heavy Industries Ltd., 1-1 Akunoura-machi, Nagasaki, Japan

**Department of Mechanical System Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, Japan

Received:
June 1, 1999
Accepted:
July 13, 1999
Published:
February 20, 2000
Keywords:
three-dimensional measurement, vision sensor, large structure, automated production
Abstract

The 3-D noncontact measuring device we developed for large piping structures consists of a 3-axis gantry robot and 3-axis rotation using a vision sensor consisting of a CCD camera and a slit laser. Center points of pipes are calculated by fitting ellipses to each section curves using the least squares method. We used this device to measure 3-D pipe structures. Tests verified device accuracy using ellipse fitting.

Cite this article as:
Kazuo Ichimura, Kiyohide Yui, and Takakazu Ishimatsu, “Measuring Device for Large Piping Structures,” J. Robot. Mechatron., Vol.12, No.1, pp. 18-23, 2000.
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Last updated on Jul. 20, 2021