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Proceedings Paper

Research on dynamic error correction method for NC rotary table based on time grating sensor
Author(s): Ziran Chen; Donglin Peng; Yong Zheng; Fangyan Zheng; Zhonghua Gao
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Paper Abstract

In order to apply original absolute time grating sensor to closed loop numerical control system, a forecasting angle displacement method with time series analysis theory is proposed. In this way, an absolute time grating sensor can be transformed to an incremental time grating. In addition, a discrete standard quantity interpolation method is present to reduce dynamic forecast error. In this way, forecast error of the last measurement period will be corrected in the next measurement period. Therefore, cumulative errors can be eliminated. The experiment results prove that dynamic errors can be controlled within ±3″ with error correction method.

Paper Details

Date Published: 15 November 2011
PDF: 6 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 832127 (15 November 2011); doi: 10.1117/12.904943
Show Author Affiliations
Ziran Chen, Hefei Univ. of Technology (China)
Donglin Peng, Chongqing Univ. of Technology (China)
Yong Zheng, Chongqing Univ. of Technology (China)
Fangyan Zheng, Chongqing Univ. of Technology (China)
Zhonghua Gao, Chongqing Univ. of Technology (China)
Hefei Univ. of Technology (China)

Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)

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