Usx Corporation

David I Walker

Frank L Kemeny

Gregory A Meszaros

John G Estocin

Roger Marquardt

Radar is used to measure not only the level of slag on molten steel but also its thickness; the measurement is used to calculate the volume of slag, and, in turn the amount of additives for slag treatment. Time-of-flight data are used to identify peaks representing the distances of the surfaces of the slag and the surface of the underlying steel. The concept is applicable to other materials of differing composition, and particularly where the underlying material is relatively more conductive than the overlying material.

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Mississauga, Canada

David I Walker