The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 38 Issue 1
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- Pages.69.1-69.1
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- 2013
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- 1226-2692(pISSN)
The Tip-Tilt Correction System in AO System for Gwacheon 1m Telescope
- Yu, Hyungjun (Astronomy Program, Dept of Physics & Astronomy, Seoul National University) ;
- Park, Yong-Sun (Astronomy Program, Dept of Physics & Astronomy, Seoul National University) ;
- Gye, Changwoo (Astronomy Program, Dept of Physics & Astronomy, Seoul National University)
- Published : 2013.04.11
Abstract
We are developing Adaptive Optics (AO) system for 1m telescope at Gwacheon National Science Museum Observatory. The beam spot of the Gwacheon 1m telescope. The tip-tilt correction system consists of a CMOS sensor, a tip-tilt mirror and a feed back loop. The beam spot location at the CMOS sensor indicates the tip-tilt components of the incoming light. The tip-tilt mirror is controlled by DAC output voltage calculated by proportional-integral-derivative (PID) controller. This system successfully corrects the tip-tilt motion of the spot.
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