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LD-LDVの光源光学系の改善
http://hdl.handle.net/10458/390
http://hdl.handle.net/10458/3907a6116be-d2a5-40d2-aa68-beab92db9de9
名前 / ファイル | ライセンス | アクション |
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KJ00003579381.pdf (742.6 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-06-28 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | LD-LDVの光源光学系の改善 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Improvement of Light Source Optics of LD-LDV | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Internal combustion engine, In-cylinder gas flow, Laser doppler velocimetry (LDV), Laser diode (LD), Collimation | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | LD-LDV ノ コウゲン コウガクケイ ノ カイゼン | |||||
言語 | ja-Kana | |||||
著者 |
田坂, 英紀
× 田坂, 英紀× 安達, 祐二× Adachi, Yuji |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Abstract In an internal combustion engine, promotion of combustion is one of the factors to achieve low fuel consumption, low exhaust pollution and high thermal efficiency. Promotion of combustion is related to in-cylinder gas flow. There is laser doppler velocimetry (LDV) in one of equipment to measure in-cylinder gas flow. We changed light source from gas laser of large size to laser diode (LD) of small size for miniaturization to improve in flexibility. LD light has an extension angle different in vertical and horizontal direction, therefore beam section becomes elliptic section. There is possibility that beam power cannot be fully used by this cause. Then, in this research, we studied about the way of collimation to use beam power efficiently. As a result, we found the way of collimation to reduce beam diameter and increase beam strength. But, this way caused decline of S/N due to increase of noise. Then, when we measured with frequency shifter, we were not possible to measure in-cylinder gas flow, and more examination should be required. |
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言語 | en | |||||
書誌情報 |
ja : 宮崎大学工学部紀要 en : Memoirs of Faculty of Engineering, University of Miyazaki 巻 34, p. 197-203, 発行日 2005-08 |
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出版者 | ||||||
言語 | ja | |||||
出版者 | 宮崎大学工学部 | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Faculty of Engineering, University of Miyazaki | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05404924 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00732558 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |