Study of improving nano-contouring performance by employing cross-coupling controller

Details Study of improving nano-contouring performance by employing cross-coupling controller Study of improving nano-contouring performance by employing cross-coupling controller

2008-04-30

arxiv.org/abs/0804.4749v1

Proceedings of the International Conference on Intelligent Unmanned System (ICIUS 2007), Bali, Indonesia, October 24-25, 2007,

Computer Science

Robotics

Uploaded by ICIUS2007 Conference Organizer on behalf of the author(s). 6 pages, 8 figures

Scientific paper

For the tracking stage path planning, we design a two-axis cross-coupling control system which uses the PI controller to compensate the contour error between axes. In this paper, the stage adoptive is designed by our laboratory (Precision Machine Center of National Formosa University). The cross-coupling controller calculates the actuating signal of each axis by combining multi-axes position error. Hence, the cross-coupling controller improves the stage tracking ability and decreases the contour error. The experiments show excellent stage motion. This finding confirms that the proposed method is a powerful and efficient tool for improving stage tracking ability. Also found were the stages tracking to minimize contour error of two types circular to approximately 25nm.

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