Method and apparatus for detecting the level of a liquid in a ta

Details Method and apparatus for detecting the level of a liquid in a ta Method and apparatus for detecting the level of a liquid in a ta

1984-12-24

1988-05-24

Lall, Parshotam S.

Boots, shoes, and leggings

73299, 7386149, 364558, G01F 2314, G01L 1300

Patent

active

047470623

ABSTRACT:
The present invention provides for a process and apparatus for detecting the level of a liquid in a vessel. The method involves sensing the pressure head of the liquid level in column disposed with the vessel wherein the column liquid level has been adjusted to a first predetermined level. The level in the column is then adjusted to a second predetermined level. The pressure head of the second predetermined level in the column then sensed. The pressure of the liquid head in the vessel outside the column is sensed. The three pressure values are then used to determine the liquid level in the vessel.

REFERENCES:
patent: 4043193 (1977-08-01), Bailey
patent: 4389888 (1983-06-01), Morooka
patent: 4393705 (1983-04-01), Eidschun
patent: 4446730 (1984-05-01), Smith

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