G - Physics
01
L
73/46
G01L 5/00 (2006.01)
Patent
CA 1194336
ICE STRESS GAUGE ABSTRACT A stress gauge comprising a pair of substantially circular metal sheets welded together along their circumference, a metal tube in communication with the space between metal sheets, a pressure transducer attached to the metal tube and a slightly pressurized fluid filling the tubing and the space between the metal sheets. Liquid pressure is selected to pro- vide a desired volume between the two plates, thereby providing a proper aspect ratio and preferably reducing the sensitivity of the gauge to temperature changes. When positioned in a solid ice sheet, pressure output indications from the pressure transducer are directly correlated to stress in the ice normal to the plane of the metal sheets. -1-
426048
Mcbride Edward J.
Perkins Thomas K.
Atlantic Richfield Company
Osler Hoskin & Harcourt Llp
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