Process For Measuring The Level Of Metal In Vessels, Especially In Continuous Casting Molds

Author:  Block, Franz-Rudolf
Source:  US Patent 4,279,149
Doc ID:  1981054
Year of Publication:  1981
Abstract:  
A method of measuring the level of molten metal in a continuous casting mold comprises inducing in the molten metal a magnetic field by a primary electrically energized coil and, by the relationship of this magnetic field to a pair of symmetrical secondary coils coaxial with the primary coil, inducing voltages in these secondary coils which are electrically connected in a circuit opposition so that the resultant voltage represents the level of the molten metal.