Level Estimation in a Water Model of Continuous Casting

Fluctuations in the level of a physical model of a continuous casting mold were studied to determine the structure of the oscillations in the molten steel level. A water model of one third of scale of an actual continuous casting machine with a perfect control configuration was used in experiments. The liquid level in the mold is measured by recording at high-speed the level fluctuations and then detecting the edges on each of the recorded images. In this work, the Sobel operator was employed. The results show that level fluctuations inside the mold have a complex structure that is repeated in large time periods.