Modeling Research on the Hysteresis Nonlinearity of the Piezoelectric Ceramics Micropositioning Staging

Gui Hua Yang

doi:10.4028/www.scientific.net/AMR.971-973.98

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 971-973Modeling Research on the Hysteresis Nonlinearity...

Modeling Research on the Hysteresis Nonlinearity of the Piezoelectric Ceramics Micropositioning Staging

Abstract:

It is difficult to obtain precise mathematical model with the traditional methods because of the hysteresis nonlinearity of piezoceramics, and it affects the displacement output accuracy of piezoelectric actuator. The paper proposes an online modeling technique combined with neural network and genetic algorithm (GA). It make the initial parameters of BP neural network be optimized, and so improves the modeling accuracy. Experimental results show that displacement maximum error is 71nm, and the average error is 26nm in the whole trip. It meets the nanopositioning accuracy requirements of piezoelectric staging .

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Periodical:

Advanced Materials Research (Volumes 971-973)

Pages:

98-102

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.971-973.98

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Online since:

June 2014

Authors:

Gui Hua Yang*

Keywords:

GA-BP, Hysteresis Nonlinearity, Modeling, Piezoelectric Ceramic (PZT)

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* - Corresponding Author

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