The research on electric method for testing co-phasing error

Weirui Zhao; Genrui Cao

doi:10.1117/12.757162

28 November 2007 The research on electric method for testing co-phasing error

Weirui Zhao, Genrui Cao

Proceedings Volume 6834, Optical Design and Testing III; 68340C (2007) https://doi.org/10.1117/12.757162
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

The primary mirror's aperture limits the telescope's resolution. A segmented primary mirror is adopted to improve the resolution. Since the primary mirror with large diameter is segmented, the segmented mirrors must be co-phased to ensure the imaging quality. Optical method and electrics method can be used to test the co-phasing error between the two adjacent segment mirrors. However the optical system of telescope will be complicated by attaching an optical cophasing test system, and some unstable factors will be introduced. In this paper, an electrics co-phasing testing method was discussed. Capacitance micrometer technology was used in this method, and relevant experiments have been carried out. And the result of these experiments indicated that the method described in this paper is feasible.

Citation Download Citation

Weirui Zhao and Genrui Cao "The research on electric method for testing co-phasing error", Proc. SPIE 6834, Optical Design and Testing III, 68340C (28 November 2007); https://doi.org/10.1117/12.757162

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