Cryogenic piezoelectric actuators

Xiaoning Jiang; William B. Cook; Wesley S. Hackenberger

doi:10.1117/12.826341

17 September 2009 Cryogenic piezoelectric actuators

Xiaoning Jiang, William B. Cook, Wesley S. Hackenberger

Proceedings Volume 7439, Astronomical and Space Optical Systems; 74390Z (2009) https://doi.org/10.1117/12.826341
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

In this paper, PMN-PT single crystal piezoelectric stack actuators and flextensional actuators were designed, prototyped and characterized for space optics applications. Single crystal stack actuators with footprint of 10 mm x 10 mm and the height of 50 mm were assembled using 10 mm x 10 mm x 0.15 mm PMN-PT plates. These actuators showed stroke of 65 - 85 μm at 150 V at room temperature, and > 30 μm stroke at 77 K. Flextensional actuators with dimension of 10 mm x 5 mm x 7.6 mm showed stroke of > 50 μm at room temperature at driving voltage of 150 V. A flextensional stack actuator with dimension of 10 mm x 5 mm x 47 mm showed stroke of ~ 285 μm at 150 V at room temperature, and > 100 μm at 77K under driving of 150 V should be expected. The large cryogenic stroke and high precision of these actuators are promising for cryogenic optics applications.

Citation Download Citation

Xiaoning Jiang, William B. Cook, and Wesley S. Hackenberger "Cryogenic piezoelectric actuators", Proc. SPIE 7439, Astronomical and Space Optical Systems, 74390Z (17 September 2009); https://doi.org/10.1117/12.826341

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