WEKO3
アイテム
Feasibility of Guided-Wave Optical Microphone Based on Elasto-Optic Effect
http://hdl.handle.net/10191/31207
http://hdl.handle.net/10191/31207eed8f9b6-a65e-4118-b4b6-cdbc900657d8
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
6049_604907.pdf (893.3 kB)
|
|
| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-12-24 | |||||
| タイトル | ||||||
| タイトル | Feasibility of Guided-Wave Optical Microphone Based on Elasto-Optic Effect | |||||
| タイトル | ||||||
| タイトル | Feasibility of Guided-Wave Optical Microphone Based on Elasto-Optic Effect | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | optical microphone | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | guided-wave optics | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | glass | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | diaphragm | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | elasto-optic effect | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_5794 | |||||
| タイプ | conference paper | |||||
| 著者 |
Nikkuni, Hiroyuki
× Nikkuni, Hiroyuki× Ohkawa, Masashi× Sekine, Seishi× Sato, Takashi |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In this paper, the feasibility of a glass-based guided-wave optical microphone is described. The optical microphone consists of a rectangular diaphragm and a straight waveguide on the diaphragm. The sensitivity of the microphone and the resonance frequency of the diaphragm are dependent on the diaphragm dimensions. In this study, to confirm operation of the proposed optical microphone, the target values for phase sensitivity and resonance frequency were set at 1.3 mrad/Pa and 5 kHz, respectively. By design considerations, the diaphragm dimensions were determined to be 16 mm × 16 mm × 0.15 mm. After fabrication, a sound wave of 1 kHz and 25 Pa, corresponding to 122 dB-SPL (sound pressure level), was applied to the microphone. In the experiment, the intensity-modulated output with the same frequency as the applied sound wave was obtained, but the observed output was unexpectedly caused by misalignment of the optical components due to mechanical vibration. The estimated output signal by the normal operation of the microphone for a sound pressure of 25 Pa was 1/10 - 1/100 of the noise level, according to the measured output characteristic to static pressure. In order to detect normal speech ranging from 55 to 65 dB-SPL, the S/N ratio should be improved by a factor of more than 104. | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Optomechatronic sensors and instrumentation : 5-7 December 2005 : Sapporo, Japan. : Dec 2005, Sapporo, Japan | |||||
| 書誌情報 |
Proceedings of SPIE - the International Society for Optical Engineering en : Proceedings of SPIE - the International Society for Optical Engineering 巻 6049, p. 604907-1-604907-8, 発行日 2005-12 |
|||||
| 出版者 | ||||||
| 出版者 | International Society for Optical Engineering, SPIE | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0277786X | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10619755 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1117/12.649176 | |||||
| 権利 | ||||||
| 権利情報 | Copyright 2005 Society of Photo-Optical Instrumentation Engineers | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
