Ice stress gauge

Details Ice stress gauge Ice stress gauge

1980-12-11

1983-09-06

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

With pressure and/or temperature compensation

73729, G01L 1904, G01L 706

Patent

active

044022263

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 provide 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.

REFERENCES:
patent: 1898848 (1933-02-01), O'Brien
patent: 2284707 (1942-06-01), Wilson
patent: 2336500 (1943-12-01), Osterberg
patent: 3286514 (1966-11-01), Anderson
patent: 3529468 (1970-09-01), Carlson
patent: 3772911 (1973-11-01), Vladimirovich

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