A lightweight push-pull acoustic transducer composed of a pair of dielectric elastomer films
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- Takehiro Sugimoto
- NHK Science & Technology Research Laboratories , 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan . sugimoto.t-fg@nhk.or.jp , ando.a-io@nhk.or.jp
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- Akio Ando
- NHK Science & Technology Research Laboratories , 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan . sugimoto.t-fg@nhk.or.jp , ando.a-io@nhk.or.jp
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- Kazuho Ono
- NHK Engineering System, Inc. , 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8540, Japan . ono.k-gs@nhk.or.jp
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- Yuichi Morita
- Foster Electric Co., Ltd. , 1-1-109 Tsutsujigaoka, Akishima, Tokyo 196-8550, Japan . ymorita@foster.co.jp , hosoda@foster.co.jp , ishii@foster.co.jp
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- Kosuke Hosoda
- Foster Electric Co., Ltd. , 1-1-109 Tsutsujigaoka, Akishima, Tokyo 196-8550, Japan . ymorita@foster.co.jp , hosoda@foster.co.jp , ishii@foster.co.jp
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- Daisaku Ishii
- Foster Electric Co., Ltd. , 1-1-109 Tsutsujigaoka, Akishima, Tokyo 196-8550, Japan . ymorita@foster.co.jp , hosoda@foster.co.jp , ishii@foster.co.jp
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- Kentaro Nakamura
- Precision and Intelligence Laboratory, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan . knakamur@sonic.pi.titech.ac.jp
説明
<jats:p>A lightweight push-pull acoustic transducer using dielectric elastomer films was proposed for use in advanced audio systems in homes. The push-pull structure consists of two dielectric elastomer films developed to serve as an electroactive polymer. The transducer utilizes the change in the surface area of the dielectric elastomer film, induced by an electric-field-induced change in the thickness, for sound generation. The resonance frequency of the transducer was derived from modeling the push-pull configuration to estimate the lower limit of the frequency range. Measurement results presented an advantage of push-pull driving in the suppression of harmonic distortion.</jats:p>
収録刊行物
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- The Journal of the Acoustical Society of America
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The Journal of the Acoustical Society of America 134 (5), EL432-EL437, 2013-10-16
Acoustical Society of America (ASA)