Head for a bubble tube

Details Head for a bubble tube Head for a bubble tube

1986-06-30

1988-01-19

Woodiel, Donald O.

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

73439, 73700, G01F 2300, G01L 700, G01N 928

Patent

active

047197994

ABSTRACT:
Apparatus for sensing hydrostatic pressure in a fluid, forming a head for a bubble tube for immersion into the fluid. The head is formed of a plate having a flat lower surface for horizontal disposition within a liquid, a first orifice for introducing a gas under pressure from above the plate whereby the gas can form a bubble under the plate within the liquid. The effect of the plate is as a surface on which a stable sessile bubble of a variable size can be grown. This results in a bubble having a substantially increased radius of curvature at its interface, that is, the gas/liquid interface, on the underside of the bubble than previously obtainable. A pressure gauge measuring the gas pressure in the tube determines the pressure at the end of the tube within the fluid.

REFERENCES:
patent: 1964253 (1934-06-01), Dienner
patent: 3922915 (1975-12-01), Andrews

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