18 July 2014 Mechanical design and analysis of focal plate for gravity deformation
Author Affiliations +
Abstract
The surface accuracy of astronomical telescope focal plate is a key indicator to precision stellar observation. To conduct accurate deformation measurement for focal plate in different status, a 6-DOF hexapod platform was used for attitude adjustment. For the small adjustment range of a classic 6-DOF hexapod platform, an improved structural arrangement method was proposed in the paper to achieve ultimate adjustment of the focal plate in horizontal and vertical direction. To validate the feasibility of this method, an angle change model which used ball hinge was set up for the movement and base plate. Simulation results in MATLAB suggested that the ball hinge angle change of movement and base plate is within the range of the limiting angle in the process of the platform plate adjusting to ultimate attitude. The proposed method has some guiding significance for accurate surface measurement of focal plate.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jianping Wang, Jianping Wang, Jiaru Chu, Jiaru Chu, Hongzhuan Hu, Hongzhuan Hu, Kexuan Li, Kexuan Li, Zengxiang Zhou, Zengxiang Zhou, "Mechanical design and analysis of focal plate for gravity deformation", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 915134 (18 July 2014); doi: 10.1117/12.2055619; https://doi.org/10.1117/12.2055619
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Construction of the 16-meter large lunar telescope
Proceedings of SPIE (August 31 1991)
Next generation space telescope a large UV IR successor...
Proceedings of SPIE (August 31 1991)
Automated scheduling of astronomical observations
Proceedings of SPIE (May 31 1994)
Lunar dust: implications for astronomical observatories
Proceedings of SPIE (August 31 1991)
Telescope revolution
Proceedings of SPIE (October 30 2000)

Back to Top