Title:
SELF-PROPELLED TYPE CONDUIT-LINE-SHAPE MEASURING APPARATUS
Document Type and Number:
Japanese Patent JPS63265107
Kind Code:
A
Abstract:
PURPOSE:To measure the bending state of a conduit line in the right and left directions, by moving a measuring part by the traction with a running body, supporting the measuring part with a supporting part so that the measuring part can be turned around a shaft, and detecting the turning of a rod. CONSTITUTION:A running body 21, which is inserted in a buried underground conduit line, is advanced forward with an image from a TV camera 25 being monitored with a TV monitor 26. Then, a measuring part 22 is tracted through a rod 50 and moved so that the moving direction is aligned with the axis of the conduit line 1. The bending angles of the conduit line 1 in the right and left directions are detected with a differential transformer according to the turning of the rod 50. The slant angles are measured with an inclinometer. The rolling states are measured with a rolling meter. The measured data are inputted into a control part 27, an operating part 24 and a recording part 28 through a cable 30.
Inventors:
MORIMITSU TAKENORI
SHIRAISHI KENJI
SHIRAISHI KENJI
Application Number:
JP9850987A
Publication Date:
November 01, 1988
Filing Date:
April 23, 1987
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
E21D9/06; G01B21/20; (IPC1-7): E21D9/06; G01B21/20
Attorney, Agent or Firm:
Shiro Mitsuishi
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