Acoustic testing in a micro-space based on a point source generated by laser-induced breakdown

N. Hosoya, M. Nagata, I. Kajiwara

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper proposes a method of acoustic testing based on a point source generated by laser-induced breakdown in the air. A high-power Nd: YAG pulse laser is used in this system for generating the laserinduced breakdown in acoustic fields. Plasma formation can be realized by the laser-induced breakdown if the local intensity of the laser beam reaches 1015 W/m2. The shock wave that is yielded by consuming a part of the plasma energy becomes a sound source. Assuming that the laser beam is focused to a small volume through a convex lens and the sound source by the laser-induced breakdown has nondirectional property, it is possible to create a point source with this technique. Securing the laser light path installs no device for acoustic excitation in acoustic fields.

本文言語English
ホスト出版物のタイトルInternational Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012
ホスト出版物のサブタイトルInternational Conference on Uncertainty in Structure Dynamics
出版社Katholieke Universiteit Leuven
ページ49-58
ページ数10
ISBN(印刷版)9781622768257
出版ステータスPublished - 2012 1 1
イベント25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012 - Leuven, Belgium
継続期間: 2012 9 172012 9 19

出版物シリーズ

名前International Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics
1

Conference

Conference25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012
国/地域Belgium
CityLeuven
Period12/9/1712/9/19

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 機械工学
  • 音響学および超音波学

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