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Flextensional Single Crystal Piezoelectric Actuators for Membrane Deformable MirrorsLarge aperture and light weight space telescopes requires adaptive optics with deformable mirrors capable of large amplitude aberration corrections at a broad temperature range for space applications including NASA missions such as SAFIR, TPF, Con-X, etc. The single crystal piezoelectric actuators produced at TRS offer large stroke, low hysteresis, and an excellent cryogenic strain response. Specifically, the recently developed low profile, low voltage flextensional single crystal piezoelectric actuators with dimensions of 18 x 5 x 1 mm showed stroke larger than 95 microns under 300 V. Furthermore, flextensional actuator retained approx. 40-50% of its room temperature strain at liquid Nitrogen environment. In this paper, ATILA FEM design of flextensional actuators, actuator fabrication, and characterization results will be presented for the future work on membrane deformable mirror.
Document ID
20070001553
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Jiang, Xiaoning
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Sahul, Raffi
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Hackenberger, Wesley S.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2006
Subject Category
Optics
Meeting Information
Meeting: NASA Tech Days in the Government
Location: Albuquerque, NM
Country: United States
Start Date: September 18, 2006
End Date: September 19, 2006
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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