Method and apparatus for determining the profile of a...

Details Method and apparatus for determining the profile of a... Method and apparatus for determining the profile of a...

G - Physics

01

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349/22

G01V 1/34 (2006.01) G01C 7/06 (2006.01) G01M 3/00 (2006.01) E21B 47/022 (2006.01)

Patent

CA 1275490

- 21 - 2559-220 ROGERS, BERESKIN & PARR C A N A D A Title: METHOD AND APPARATUS FOR DETERMINING THE PROFILE OF A SUBTERRANEAN PASSAGE Inventors: ALAN G HAYWARD LAURl C. GREGG AURELE L. DUTRISAC JACK J. JOLIAT ABSTRACT OF THE DISCLOSURE A method and apparatus for remotely determining the profile of an inaccessible subterranean passage for example in a mine. An instrument pod is moved through the passage in steps. At each step, a rangefinder scans the wall of the passage and provides to a remote monitor, range measurements from which a profile can be determined. The pod also carries clinometers for determining the orientation of the pod during each profile measurement. The pod also carries a television camera and lights so that the wall of the passage can be visually inspected.

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