The simulation of the local seeing in segments active alignment

Shu Yuan; Jing Lin

doi:10.1117/12.915592

10 November 2011 The simulation of the local seeing in segments active alignment

Shu Yuan, Jing Lin

Proceedings Volume 8336, Integrated Modeling of Complex Optomechanical Systems; 83360I (2011) https://doi.org/10.1117/12.915592
Event: Integrated Modeling of Complex Optomechanical Systems, 2011, Kiruna, Sweden

Abstract

For a ring segmented telescope and some others dilute aperture segmented telescope, active alignment is essential for closing the control loop. We choose an internal optical metrology to sense the tip and tilt of each segment for the active alignment. The local seeing is an important factor for the performance of this sensing. The effect of temperature gradient and turbulence near ground on the accuracy and frequency of the tip and tilt sensing is modeled. We conclude that the effect of local seeing must be considered for a low surface error of the primary mirror. Thermal control of the enclosure and telescope should be done for achieving a high accuracy and frequency active alignment.

Citation Download Citation

Shu Yuan and Jing Lin "The simulation of the local seeing in segments active alignment", Proc. SPIE 8336, Integrated Modeling of Complex Optomechanical Systems, 83360I (10 November 2011); https://doi.org/10.1117/12.915592

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available