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Proceedings Paper

Nonlinearity error separation and self-correction methods for time grating displacement sensor
Author(s): Xiaokang Liu; Donglin Peng; Xianquan Wang; Wei Yang
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Paper Abstract

A novel type of displacement sensor named time grating is introduced for measuring space with time. Multi-position probes measuring method is used to separate the non-linearity error of time grating, and Fourier series harmonic wave correction method is proposed to correct the error by software. Experiment results coming out from applications conform the remarkable effectiveness of these methods. A time grating displacement sensor with accuracy of ±0.8" is developed. Test results show that high-precision measurement is achieved without high-precision manufacture. The realization of error self-correction endows time grating sensor with intelligence.

Paper Details

Date Published: 25 October 2006
PDF: 6 pages
Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 628006 (25 October 2006); doi: 10.1117/12.715250
Show Author Affiliations
Xiaokang Liu, Hefei Univ. of Technology (China)
Donglin Peng, Chongqing Institute of Technology (China)
Xianquan Wang, Chongqing Institute of Technology (China)
Wei Yang, Chongqing Institute of Technology (China)


Published in SPIE Proceedings Vol. 6280:
Third International Symposium on Precision Mechanical Measurements
Kuang-Chao Fan; Wei Gao; Xiaofen Yu; Wenhao Huang; Penghao Hu, Editor(s)

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