Fast axis servo for the fast and precise machining of non-rotational symmetric optics

@inproceedings{Tian2014FastAS,
  title={Fast axis servo for the fast and precise machining of non-rotational symmetric optics},
  author={Fujing Tian and Ziqiang Yin and Shengyi Li},
  booktitle={Other Conferences},
  year={2014}
}
A new long range tool servo-fast axis servo is developed, which is used for fabricating the non-rotational symmetric optics surface with millimeters’ sag. The mechanism design, motion modeling and development of FAS device were studied. The FAS consists of a linear motor, aerostatic bearings, high-resolution encoder and a motion controller. A control strategy consists of a proportional, integral and derivative (PID) feedback controller and velocity/acceleration feedforward controller is… CONTINUE READING

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