On the measurements of wavenumber frequency spectrum by using MEMS microphone arrays
MEMSマイクアレイを用いた波数周波数スペクトルの計測
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20244200
- Paper/Info type
- Symposium Text
No.24-23
- Pages
- 57-70(Total 14 p)
- Date of publication
- Mar 2024
- Publisher
- JSAE
- Language
- Japanese
- Event
- JSAE Symposium 2023
Detailed Information
| Category(J) | PPT資料 Translation |
|---|---|
| Category(E) | PPT slides |
| Author(J) | 1) 小川 勝矢, 2) 飯田 明由, 3) 吉永 司 |
| Author(E) | 1) Katsuya Ogawa, 2) Akiyoshi Iida, 3) Tsukasa Yoshinaga |
| Affiliation(J) | 1) 豊橋技術科学大学, 2) 豊橋技術科学大学, 3) 大阪大学 |
| Affiliation(E) | 1) Toyohashi University of Technology, 2) Toyohashi University of Technology, 3) Osaka University |
| Abstract(J) | 自動車の表面圧力変動を流体力学的圧力変動と音響学的圧力変動に分離するため，実車に搭載可能な2次元MEMSマイクアレイシステムの開発を行った．マイク数と最適配置を検討し，風洞実験により波数周波数スペクトルを実測し，0.5 ～ 5 kHzの範囲で圧力変動を分離することができることを確認した. Translation |
| Abstract(E) | In order to decompose the pressure fluctuation of automobiles into hydrodynamic components and acoustic, a two-dimensional MEMS microphone array system which can be installed in a real vehicle was developed. The number of microphones and their optimum configuration were investigated and the wave frequency spectrum was measured in a wind tunnel experiment to confirm that the pressure fluctuations could be decomposed in the frequency range of 0.5 - 5 kHz. |
