The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 44 Issue 2
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- Pages.57.3-57.3
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- 2019
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- 1226-2692(pISSN)
BITSE Filter Wheel Assembly using a Piezo-ceramic module
- Yang, Heesu (Korea Astronomy and Space Science Institute) ;
- Choi, Seong-hwan (Korea Astronomy and Space Science Institute) ;
- Kim, Jihun (Korea Astronomy and Space Science Institute) ;
- Park, Jongyeob (Korea Astronomy and Space Science Institute) ;
- Baek, Jihye (Korea Astronomy and Space Science Institute) ;
- Kim, Yeon-Han (Korea Astronomy and Space Science Institute) ;
- Newmark, Jeffrey (NASA Goddard Space Flight Center) ;
- Gopalswamy, Nat (NASA Goddard Space Flight Center)
- Published : 2019.10.14
Abstract
Space applications of the motion have been served with DC motors for decades. But their functionality with a gearbox and lubricants and their weights are always an issue for its application. A piezo-motor has an advantage on the direct driving with higher accuracy, smaller size, and no-EMI. We use the piezo-motor to rotate a filter wheel directly in a balloon-borne coronagraph launched on September 2019. The piezo-motor works well in a temperature range from -10 to 40 Celsius with high reliability and high positioning / tilt accuracy (~0.1degree) with a photo-encoder. We verify its functionality for 7 days. In this talk, we report the design, test processes of the filter wheel including its balloon flight result.
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