Tank gauging system

Details Tank gauging system Tank gauging system

1993-05-26

1994-05-10

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

73439, G01F 2316, G01N 918

Patent

active

053097645

ABSTRACT:
A system to determine fluid level in a tank using several tubes extending to different levels in the tank. Gas pressure in the tubes needed to release bubbles from the exit ends of the tubes indicates the hydrostatic head at the exit ends. A control unit compares the pressures in the tubes to find the highest fluid immersed bubbler tube. The proportion of fluid above the immersed tube is calculated from the pressure and added to the height of the immersed tube to get the total fluid depth. A spring loaded fixed length member, magnetically attached to the bottom of the tank, reliably secures the exit ends of the tubes at known fixed vertical locations.

REFERENCES:
patent: 2613535 (1952-10-01), Born
patent: 4043193 (1977-08-01), Bailey
patent: 4630478 (1986-12-01), Johnson
patent: 4669309 (1987-06-01), Cornelius
patent: 5115679 (1992-05-01), Uhlarik
patent: 5163324 (1992-11-01), Stewart

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