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Optical Engineering

Tilt corrector based on spring-type magnetostrictive actuators
Author(s): Vladimir I. Aksinin; Sergue A. Chetkin; Vadim V. Kijko; Sergue V. Muraviev
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Paper 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.

Paper Details

Date Published: 1 March 1993
PDF: 6 pages
Opt. Eng. 32(3) doi: 10.1117/12.61040
Published in: Optical Engineering Volume 32, Issue 3
Show Author Affiliations
Vladimir I. Aksinin, General Physics Institute (Russia)
Sergue A. Chetkin, General Physics Institute (Russia)
Vadim V. Kijko, General Physics Institute (Russia)
Sergue V. Muraviev, General Physics Institute (Russia)

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