イケダ ユウスケ   IKEDA Yusuke
  池田 雄介
   所属   東京電機大学大学院  未来科学研究科 情報メディア学専攻
   職種   助教(A)
言語種別 英語
発行・発表の年月 2016/08
形態種別 会議論文
査読 査読有り
標題 Optical sound field measurement and imaging using laser and high-speed camera
執筆形態 共著
掲載誌名 Proceedings of the INTER-NOISE 2016
掲載区分国外
著者・共著者 Yasuhiro Oikawa, Kohei Yatabe, Kenji Ishikawa, Yusuke Ikeda
概要 Optical sound measurement, which acquires acoustical quantities by means of optical techniques, is of growing interest as an alternative method for the sound field imaging. There are two remarkable aspects of the optical sound measurement. The first is non-intrusiveness. Since the measurement is achieved by observing the light passed through the sound field, the instruments can be arranged outside the measurement field; non-contact and non-destructive measurement can be achieved. The second one is spatial resolution. Instead of building an array, expanding or scanning of light are often used for the optical imaging. Therefore, the optical imaging does not have the limitation of interval of measurement points due to the size of the instruments as microphone arrays. The two dimensional of transient field measurement can be achieved by using a high-speed camera because of single-shot. In addition some signal processing techniques introduced to optical measurement are also described.