| 摘要 |
A controller (30, 40) to provide base level fiber orientation control of a paper web. The controller (30, 40) achieves one or more indices that are derived from the online measurements of a fiber orientation sensor (24) of the fiber ratio and the fiber angle. The indices are used for control of the sheet forming processes. The controller (30, 40) may be implemented a single or multi stage fuzzy controller or the combination of fuzzy controllers with non-fuzzy logic controllers.
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