Tilt corrector based on spring-type magnetostrictive actuators

Vladimir I. Aksinin; Sergue A. Chetkin; Vadim V. Kijko; Sergue V. Muraviev

doi:10.1117/12.61040

1 March 1993 Tilt corrector based on spring-type magnetostrictive actuators

Vladimir I. Aksinin; Sergue A. Chetkin; Vadim V. Kijko; Sergue V. Muraviev

Author Affiliations +

Optical Engineering, 32(3), (1993). https://doi.org/10.1117/12.61040

Abstract

Tilt corrector based on a spring-type magnetostrictive actuator (STMA) was investigated for wavefront tilt correction. The STMA is a very efficient type of macroactuator for application in large ground- and space-based adaptive optics. By means of the STMA it is possible to deliver, in a real-time scale (1 to 10 ms), precision displacements in a range up to 100 μm with a 0.1-μm positioning accuracy. On the basis of experimentally investigated static and dynamic characteristics of STMAs the real-time two-coordinate mirror positioning system for precise optical engineering was developed and investigated. A dynamic range of corrected tilts up to 8 arc mm with a frequency range up to 50 Hz delivered by the developed tilt corrector allowed compensation for natural thermoconvectionally induced tilts with accuracy of 0.1 arc sec.

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Vladimir I. Aksinin, Vladimir I. Aksinin, Sergue A. Chetkin, Sergue A. Chetkin, Vadim V. Kijko, Vadim V. Kijko, Sergue V. Muraviev, Sergue V. Muraviev, } "Tilt corrector based on spring-type magnetostrictive actuators," Optical Engineering 32(3), (1 March 1993). https://doi.org/10.1117/12.61040 . Submission:

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