G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 7/16 (2006.01) E21F 17/18 (2006.01) G01B 11/16 (2006.01) G08B 21/00 (2006.01)
Patent
CA 2529517
The present invention is a substance displacement device. The device includes a sensing unit which is positioned in a drill hole or otherwise within the substance, such as soil or rock. A measurement device is connected to the sensing unit to measure changes in resistance caused by deformation of the sensing device. A control device connected to the measuring device determines whether the change in resistance exceeds a threshold, and thus activates an alarm. The sensing device preferably includes a fixed resistance device across its terminations to enable the establishing of a baseline resistance. The sensing device may include an electrical element or an optical element. The alarm can be any suitable type of alarm.
Lambert Anthony R.
Mathis James I.
LandOfFree
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