| Project/Area Number |
20860097
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| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
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| Allocation Type | Single-year Grants |
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| Research Field |
Aerospace engineering
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| Research Institution | Japan Aerospace Exploration Agency |
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Principal Investigator |
TAKAYANAGI Hiroki Japan Aerospace Exploration Agency, 研究開発本部流体グループ, 研究員 (70513422)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,289,000 (Direct Cost: ¥2,530,000、Indirect Cost: ¥759,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,729,000 (Direct Cost: ¥1,330,000、Indirect Cost: ¥399,000)
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| Keywords | 計測工学 / 高エンタルピー / 分光診断 / 吸収分光 / アーク加熱風洞 |
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| Research Abstract |
Cavity Enhanced Absorption Spectroscopy has been applied to the Arc heated wind tunnel. This facility has been developed in Chofu aerospace center in order to simulate the environment during reentry from the space. However, because of the mechanical vibration from the cooling water and vacuum system, the transmitted laser signal got worse and absorption signals could not be obtained. Therefore, influence of mechanical vibration on CEAS has been studied by vibrating the high-reflectance mirror which consisted of the cavity. As a result, it was investigated that because of the mechanical vibration, the sensitivity and signal-to-noise ratio were degraded.
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