Liquid level detection apparatus and method thereof

Details Liquid level detection apparatus and method thereof Liquid level detection apparatus and method thereof

G - Physics

01

F

G01F 23/60 (2006.01) B22D 2/00 (2006.01) G01F 23/00 (2006.01)

Patent

CA 2053925

ABSTRACT Disclosed is a liquid level detection apparatus using the Archimedean principle suited for the measurement of the level of a liquid, in particular a high temperature molten metal. The liquid level detection apparatus is comprised of a probe (3) which inserted in a molten metal (2) and receives a buoyancy corresponding to the level of the liquid, an arm (4) which is supports the probe at one end, a support (7) which supports the arm, a force detector (8) which is provided under the other end of the arm and detects the buoyancy received by the probe through the arm, and a signal processing means (13) which performs operational processing on the electrical output signals of the force detector and finds the level corresponding to the output. In accordance with the Archimedean principle, if the specific gravity of the liquid is considered constant, them the change in the volume of the probe in the solution, that is, the change in the depth of entry, is proportional to the change in the buoyancy and, using this, the force is detected and operational processing performed to detect the liquid level.

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