Sound direction sensor with an acoustic channel

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Pages655-658
Number of pages4
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010 - Hong Kong
Duration: 2010 Jan 242010 Jan 28

Other

Other23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010
CityHong Kong
Period10/1/2410/1/28

Fingerprint

Acoustics
Acoustic waves
acoustics
sensors
Sensors
Microphones
ear
Direction compound
microphones
Scanning
estimating
scanning
Experiments

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Nguyen, M. D., Inaba, A., Suzuki, A., Takahashi, H., Iwase, E., Matsumoto, K., & Shimoyama, I. (2010). Sound direction sensor with an acoustic channel. In Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS) (pp. 655-658). [5442321] https://doi.org/10.1109/MEMSYS.2010.5442321

Sound direction sensor with an acoustic channel. / Nguyen, Minh Dung; Inaba, Akira; Suzuki, Akira; Takahashi, Hidetoshi; Iwase, Eiji; Matsumoto, Kiyoshi; Shimoyama, Isao.

Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). 2010. p. 655-658 5442321.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nguyen, MD, Inaba, A, Suzuki, A, Takahashi, H, Iwase, E, Matsumoto, K & Shimoyama, I 2010, Sound direction sensor with an acoustic channel. in Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)., 5442321, pp. 655-658, 23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010, Hong Kong, 10/1/24. https://doi.org/10.1109/MEMSYS.2010.5442321
Nguyen MD, Inaba A, Suzuki A, Takahashi H, Iwase E, Matsumoto K et al. Sound direction sensor with an acoustic channel. In Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). 2010. p. 655-658. 5442321 https://doi.org/10.1109/MEMSYS.2010.5442321
Nguyen, Minh Dung ; Inaba, Akira ; Suzuki, Akira ; Takahashi, Hidetoshi ; Iwase, Eiji ; Matsumoto, Kiyoshi ; Shimoyama, Isao. / Sound direction sensor with an acoustic channel. Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). 2010. pp. 655-658
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