Sound direction sensor with an acoustic channel

Minh Dung Nguyen, Akira Inaba, Akira Suzuki, Hidetoshi Takahashi, Eiji Iwase, Kiyoshi Matsumoto, Isao Shimoyama

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

This paper reports on a method for estimating direction of a sound with one directional acoustic sensor. Inspired by the two input structure of bushcricket ear, our sensor was designed to have an acoustic channel and a micro piezo-resistive cantilever. The radiated sound acts simultaneously on the external and on the inner surface of the cantilever. As the result, the directionality of our sensor varies with the frequency of incident sound. The sound direction was estimated by using directional responses of the sensor at multiple frequencies so that it does not require either angle scanning or microphone arrays. We demonstrated that this method enables the sound direction to be estimated with the average error of 4 degrees in laboratory experiments.

本文言語English
ホスト出版物のタイトルMEMS 2010 - The 23rd IEEE International Conference on Micro Electro Mechanical Systems, Technical Digest
ページ655-658
ページ数4
DOI
出版ステータスPublished - 2010 6 1
外部発表はい
イベント23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010 - Hong Kong, China
継続期間: 2010 1 242010 1 28

出版物シリーズ

名前Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN(印刷版)1084-6999

Conference

Conference23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010
国/地域China
CityHong Kong
Period10/1/2410/1/28

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 機械工学
  • 電子工学および電気工学

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