10 May 2018 Analysis of a discrete-layout bimorph disk elements piezoelectric deformable mirror
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Abstract
We introduce a discrete-layout bimorph disk elements piezoelectric deformable mirror (DBDEPDM), driven by the circular flexural-mode piezoelectric actuators. We formulated an electromechanical model for analyzing the performance of the new deformable mirror. As a numerical example, a 21-actuators DBDEPDM with an aperture of 165 mm was modeled. The presented results demonstrate that the DBDEPDM has a stroke larger than 10  μm and the resonance frequency is 4.456 kHz. Compared with the conventional piezoelectric deformable mirrors, the DBDEPDM has a larger stroke, higher resonance frequency, and provides higher spatial resolution due to the circular shape of its actuators. Moreover, numerical simulations of influence functions on the model are provided.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hairen Wang, Ziguang Chen, Shengfeng Yang, Lin Hu, Ming Hu, "Analysis of a discrete-layout bimorph disk elements piezoelectric deformable mirror," Journal of Astronomical Telescopes, Instruments, and Systems 4(2), 029001 (10 May 2018). https://doi.org/10.1117/1.JATIS.4.2.029001 Submission: Received 3 November 2017; Accepted 23 April 2018
Submission: Received 3 November 2017; Accepted 23 April 2018
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