Method and apparatus for determining the profile of a subterranean passage
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United States of America Patent
Stats
-
Jun 5, 1990
Grant Date -
N/A
app pub date -
Oct 14, 1987
filing date -
Oct 14, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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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