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 2016/09
形態種別 学術研究論文
標題 Observation of traveling wave with laser tomography
執筆形態 共著
掲載誌名 Acoustical Science and Technology
掲載区分国内
出版社・発行元 The Acoustical Society of Japan
巻・号・頁 37(5),pp.231-238
著者・共著者 Yusuke Ikeda, Naoki Okamoto, Tadashi Konishi, Yasuhiro Oikawa, Yasuhiro Tokita, Yoshio Yamasaki
概要 In this study, we observe traveling sound waves with a laser and computed tomography. In our previous research, we observed steady-state sound fields using a sine wave signal. However, transient sound fields observation is necessary in order to observe more complicated sound fields that need to be separated into direct and reflected sounds. Therefore, in this study, we use a traveling sound wave (pulse sound wave). For fundamental experiments, we observed projections of a traveling pulse sound wave generated by a 2-way loudspeaker and a flat-panel loudspeaker with a laser. For transit sound fields, we used the sound field projections obtained with a laser to observe that a flat sound wave generated by a flat-panel loudspeaker is reflected by a sound-reflecting board. Then, we reconstructed the sound field information on the transition of a pulse sound wave generated by a 2-way loudspeaker, by computed tomography.