| 摘要 |
PROBLEM TO BE SOLVED: To provide a system which copes with errors of the velocity and the position of a linear web. SOLUTION: A double reflective printing alignment system includes a first converter which is constituted to create a first linear velocity regarding the moving web in a first roller, a second converter which is constituted to create a second linear velocity regarding the moving web in a second roller, a low pass filter which specifies the low frequency of the first linear velocity in combination with the first converter, a high pass filter which specifies the high frequency of the second linear velocity in combination with the second converter, and a controller which is constituted to calculate the linear velocity of the moving web in the second roller by referring to the specified high frequency component of the second linear velocity and the specified low frequency component of the first linear velocity. COPYRIGHT: (C)2011,JPO&INPIT
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