Wavefront Sensing, Active and Adaptive Optics, and Control Systems

Analytical analysis of a beam flexural-mode piezoelectric actuator for deformable mirrors

[+] Author Affiliations
Hairen Wang

Chinese Academy of Sciences, Purple Mountain Observatory, 2 West Beijing Road, Nanjing 210008, China

Chinese Academy of Sciences, Key Laboratory for Radio Astronomy, 2 West Beijing Road, Nanjing 210008, China

J. Astron. Telesc. Instrum. Syst. 1(4), 049001 (Nov 12, 2015). doi:10.1117/1.JATIS.1.4.049001
History: Received July 20, 2015; Accepted October 19, 2015
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Abstract.  A beam flexural-mode piezoelectric bimorph actuator is analyzed based on linear piezoelectricity, and the performance of the actuator is studied. The beam bimorph piezoelectric actuator (BBPA), which is a sandwich compound consisting of a lower and an upper piezoelectric ceramic surface layer and a middle layer made of metal, is driven to flexural deformation. The statistical analytical solution and dynamical solutions from the three-dimensional equations of linear piezoelectricity are derived, and the dependence of the performance upon the physical parameters of the BBPA is evaluated. Numerical results illustrate the strengthened performance achieved by adjusting the geometrical and material parameters of the BBPA.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Hairen Wang
"Analytical analysis of a beam flexural-mode piezoelectric actuator for deformable mirrors", J. Astron. Telesc. Instrum. Syst. 1(4), 049001 (Nov 12, 2015). ; http://dx.doi.org/10.1117/1.JATIS.1.4.049001


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