Method of measurement of the level of the surface of a metal bat

Details Method of measurement of the level of the surface of a metal bat Method of measurement of the level of the surface of a metal bat

1990-01-16

1991-06-18

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

With other measuring device

73291, 73290R, 266 79, 374 26, 374139, 374140, G01F 2322, G01F 2300

Patent

active

050240862

ABSTRACT:
The level of the surface of a bath of molten metal beneath a fluid layer of slag in a metallurgical vessel is measured by a detector which is moved through the slag layer into the metal bath and then withdrawn. To improve accuracy and to avoid the need for a separate measurement the detector used comprises an oxygen concentration sensor which emits signals indicating the boundary between the molten metal and the slag, whereby the height of said boundary is determined.

REFERENCES:
patent: 3708159 (1973-01-01), De Bray
patent: 4354382 (1982-10-01), Hagglund
patent: 4413810 (1983-11-01), Tenberg et al.
patent: 4580449 (1986-04-01), Hatono et al.
patent: 4708191 (1987-11-01), Block et al.
patent: 4794335 (1988-12-01), Linder

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