绝对值A GC 在控制同板差的同时，对目标厚度及其公差带的控制也至关重要；
Absolute AGC is important for both control of gauge in same. plate and control of tolerance hand of aim thickness.
介绍了拉幅生产线聚酯薄膜生产目标厚度自动调整系统的工作原理、工作特点、主要控制参数。
The working principle, characteristics and main control parameters of film extruder production line PET film production objective thickness self-control system were introduced.
该算法通过调整轧制力限制系数来调整约束条件使得最后道次的出口厚度与目标厚度的偏差小于给定误差，并同时获得优化的轧制规程。
The algorithm is able to adjust the schedule to make the strip thickness error less than set one by modifying the limit coefficient of rolling force.
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