PURPOSE: To provide the titled level gage which can detect the level of the molten steel in a round mold with simple constitution by providing a coil for transmission connected to an AC power source and a coil for reception which detects the voltage induced by said coil to the top end of the round mold.
CONSTITUTION: A coil 2 oscillation and a coil 3 for reception which have ≥90° spacing from each other are disposed to the top end of a round mold copper plate 1 of a continuous casting machine. AC current is impressed from a constant current source 4 to the coil 2 for oscillation to generate an alternating magnetic field. Electric current is generated atop the plate 1 by the alternating magnetic field and further a secondary alternating magnetic field is generated. Electromotive force is induced in the coil 3 by the secondary alternating magnetic field and is detected by a voltage detector 5. The voltage decreases and increases according to the increase and decrease of the amt. of the molten steel, from which the level of the molten steel is detected.
NAKAMURA MASAMI
TOMONO HIROSHI
NISHIO TERUTSUNE
SUMITOMO HEAVY INDUSTRIES