Hemispherical breathing mode speaker using a dielectric elastomer actuator

Naoki Hosoya, Shun Baba, Shingo Maeda

研究成果: Article査読

40 被引用数 (Scopus)

抄録

Although indoor acoustic characteristics should ideally be assessed by measuring the reverberation time using a point sound source, a regular polyhedron loudspeaker, which has multiple loudspeakers on a chassis, is typically used. However, such a configuration is not a point sound source if the size of the loudspeaker is large relative to the target sound field. This study investigates a small lightweight loudspeaker using a dielectric elastomer actuator vibrating in the breathing mode (the pulsating mode such as the expansion and contraction of a balloon). Acoustic testing with regard to repeatability, sound pressure, vibration mode profiles, and acoustic radiation patterns indicate that dielectric elastomer loudspeakers may be feasible.

本文言語English
ページ(範囲)EL424-EL428
ジャーナルJournal of the Acoustical Society of America
138
4
DOI
出版ステータスPublished - 2015 10月 1

ASJC Scopus subject areas

  • 人文科学(その他)
  • 音響学および超音波学

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