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A Novel Compensation Method for Time-Grating Sensor’s Dynamic Measurement Error

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Abstract:

In order to improve time-grating sensor’s measurement accuracy, which is influenced by stability of the components, temperature and mechanical processing in precision measuring procedure. A novel compensation method based on Fourier series approach and least square is presented. With this method, the measurement error is separate into a lot of harmonics, and the optimal parameters of compensation are evaluated by least square method. The accuracy analysis certificates that time-grating sensor’s measurement error is reduced from ±14.8′′ to ±2.5′′ by applying the error compensation method, which is compensated about 80% compared with no compensation. Sensor’s accuracy is effectively improved.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

1278-1281

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.1278

Citation:

Cite this paper

Online since:

September 2014

Authors:

Shi Zheng Sun*, Dong Lin Peng, Fang Yan Zheng

Keywords:

Error Compensation, Fourier Series Approach, Least Square (LS), Time-Grating Sensor

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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