2012 Fiscal Year Final Research Report
Development of the segmented mirror control system usinga self-phase-measurement method
| Project/Area Number |
22340044
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
NAGATA Tetsuya 京都大学, 大学院・理学研究科, 教授 (80208016)
OHTA Kouji 京都大学, 大学院・理学研究科, 教授 (50221825)
YOSHIDA Michitoshi 広島大学, 大学院・理学研究科, 教授 (90270446)
KURITA Mikio 京都大学, 大学院・理学研究科, 准教授 (20419427)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 光赤外線天文学 / 超精密計測 / 精密位置制御 / 分割鏡 / 望遠鏡 |
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| Research Abstract |
In this study, 1) a self-phase-measurement system using two fixed wavelength lasers and one tunable laser with the measurement accuracy of 15nm between segments, 2) mirror support systems holding the relative axial-position between segmentswith an accuracy of 15nm, and 3) simulation software for 18 segments control with 60 position sensors, has been developed. As a result, it is verified that we can control 18 segmented-mirrors using these techniques.
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