| 摘要 |
A meandering control method in a rolling mill is provided to control a level of the rolling mill by calculating a direction of a steel plate using a sensor capable of measuring meandering of the steel plate. In meandering control method in a rolling mill, a meandering control device(200) receives measurement values from first to third sensors(150a,150b,150c) through a comparator(210) and outputs a control signal to a hydraulic driving system(170). The comparator compares the measurement value of the second sensor with the measurement value of the first sensor and the measurement value of the third sensor. If there is no code variation, the comparator sends a forward control signal to the hydraulic driving system. If the code is changed in the reverse direction, the comparator sends a reverse control signal to the hydraulic driving system.
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