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Proceedings Paper

Design of automatic leveling and centering system based on error correction and compensation algorithm
Author(s): Chun-tong Liu; Zhen-xin He
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Paper Abstract

Because of the interaction of leveling and centering, the operation repeats many times; Angle measurement error caused by the leveling and centering is not compensated and corrected. Aimed at defects such as low precision, long time, low intellectualization and no compensation in traditional method of leveling and centering, automatic leveling and centering system of theodolite is designed based on the algorithm of error correction and compensation. Using the method of coordinate transformation, horizontal angle error caused by tilt error are analyzed, and the exact mathematical compensation formulas are given. The structure and operating principle of automatic leveling and centering system based on the algorithm are set forth. The compensation algorithm is used for compensating the horizontal and vertical angle effectively. Experiments show that the centering precision reaches 0.04mm through error compensation, and the angle measuring error caused by leveling error is less than 0.5". The system can effectively avoid leveling and centering many times, shorten the equipment set-up time, and improve angle measurement precision.

Paper Details

Date Published: 12 October 2010
PDF: 6 pages
Proc. SPIE 7659, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, 76590T (12 October 2010); doi: 10.1117/12.865500
Show Author Affiliations
Chun-tong Liu, Xi'an Research Institute of Hi-Tech (China)
Zhen-xin He, Xi'an Research Institute of Hi-Tech (China)


Published in SPIE Proceedings Vol. 7659:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing
Xiangang Luo; Georg von Freymann, Editor(s)

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