Paper Title:
Nanometer Positioning System Based on Ball Screw
  Abstract

This paper deals with nanometer positioning in the presence of friction. The object researched is a ball-screw-driven and linear-ball-guide-supported table system. For such system, models that do not account for friction can only be applicable to describe the macrodynamic behavior which is significantly different from the microdynamic one. A PID controller is designed with high-loop gain to suppress the effect of friction. The controller parameters are calculated by pole placement according to macrodynamics, no identification of friction and friction model are necessary. Experiment and simulation results indicate that nanometer positioning can be realized in this system by the controller. In point-to-point (PTP) positioning for step heights from 0.1μm to 1mm, the positioning error is within ±5 nm and the response characteristics are satisfactory.

  Info
Periodical
Key Engineering Materials (Volumes 315-316)
Edited by
Zhejun Yuan, Xipeng Xu, Dunwen Zuo, Julong Yuan and Yingxue Yao
Pages
710-714
DOI
10.4028/www.scientific.net/KEM.315-316.710
Citation
L. H. Lu, Y. C. Liang, H. Tachikawa, Y. F. Guo, A. Shimokohbe, "Nanometer Positioning System Based on Ball Screw", Key Engineering Materials, Vols. 315-316, pp. 710-714, 2006
Online since
July 2006
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Price
$32.00
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