High-precision real-time displacement control for large optical system structure

R. Tagai; K. Kitamoto; H. Hamori; T. Mizutani; T. Kawashima; A. Iwasaki

doi:10.1117/12.2652282

18 April 2023 High-precision real-time displacement control for large optical system structure

R. Tagai, K. Kitamoto, H. Hamori, T. Mizutani, T. Kawashima, A. Iwasaki

Proceedings Volume 12486, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2023; 124860E (2023) https://doi.org/10.1117/12.2652282
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Abstract

The authors aim to establish a technology for real-time measurement and correction of minute displacement of large optical structures in orbit. A test bed simulating a satellite-mounted telescope will be fabricated using a 70 cm ceramic mirror, and a demonstration test will be conducted applying the displacement compensation strut. First, as a preliminary verification of the demonstration test, an elemental test was conducted using a displacement compensation strut of the same size as the test bed. As a result, we confirmed that a control accuracy of ±10 nm could be achieved for a control range of 10 to 90 μm.

Conference Presentation

Citation Download Citation

R. Tagai, K. Kitamoto, H. Hamori, T. Mizutani, T. Kawashima, and A. Iwasaki "High-precision real-time displacement control for large optical system structure", Proc. SPIE 12486, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2023, 124860E (18 April 2023); https://doi.org/10.1117/12.2652282

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