Tilt correction in stabilized interferometry: difficulties and remedies.
Abstract
Real-time tilt correction proposed for the I2T at CERGA will be operationnal in June 88. The construction of this active tracking system raised some interesting questions that the authors state in this paper, together with appropriate solutions. They focus here on problems common to most stellar interferometers: how to get a constant magnification for pupil image and pupil-star distance whatever the baseline? How to measure and minimize path delays introduced by tilt correction mirrors or other moving elements? The authors end up with a discussion on field rotation compensation and its implication on the optical design.
- Publication:
-
European Southern Observatory Conference and Workshop Proceedings
- Pub Date:
- 1988
- Bibcode:
- 1988ESOC...29.1093F
- Keywords:
-
- Interferometers:Optical Design;
- Optical Design:Interferometers