DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, soo yeon | ko |
dc.contributor.author | Shin, Eui Joong | ko |
dc.contributor.author | Cho, Byung-Jin | ko |
dc.contributor.author | Choi, Jung-Woo | ko |
dc.date.accessioned | 2017-12-05T02:21:54Z | - |
dc.date.available | 2017-12-05T02:21:54Z | - |
dc.date.created | 2017-11-28 | - |
dc.date.created | 2017-11-28 | - |
dc.date.created | 2017-11-28 | - |
dc.date.issued | 2017-08-28 | - |
dc.identifier.citation | Inter-Noise 2017 | - |
dc.identifier.uri | http://hdl.handle.net/10203/227614 | - |
dc.description.abstract | Thermo-acoustic (TA) loudspeakers based on carbon nanotubes are emerging as the alternative of conventional loudspeakers due to its low heat capacity. Since TA loudspeakers produce sound using an ultra-thin conductor, they have many practical advantages, such as a simple fabrication process, installation on a curved surface and omnidirectional radiation characteristic. Nevertheless, sound pressure levels of TA loudspeakers show high-pass characteristics, which lead to poor performance in a low-frequency region. To amplify a low-frequency range, we attempt to design multiple resonators and implement a multiway loudspeaker by combining the resonators with an open-type TA loudspeaker. For accurate tuning of TA resonators, we derive a mechanical model of a TA resonator and investigate key design parameters involved with a resonance frequency. Three TA resonators are designed and fabricated for boosting SPLs over 0.5 kHz ~ 1.5 kHz and fine-tuned through the use of different plate materials and additional mass loading layers. Because TA resonators produce high-Q resonances, anti-resonances, as well as phase inversion across the resonance frequencies, we implement a crossover network equalizing the irregular frequency response of the multiway speaker. The frequency response of the fabricated multiway speaker shows amplified sound pressure level than that of an open-type TA loudspeaker. | - |
dc.language | English | - |
dc.publisher | International Institute of Noise Control Engineering | - |
dc.title | Resonator Design for Multiway Thermo-Acoustic Loudspeaker | - |
dc.type | Conference | - |
dc.identifier.scopusid | 2-s2.0-85042098414 | - |
dc.type.rims | CONF | - |
dc.citation.publicationname | Inter-Noise 2017 | - |
dc.identifier.conferencecountry | HK | - |
dc.identifier.conferencelocation | Hong Kong Convention and Exhibition Centre | - |
dc.contributor.localauthor | Cho, Byung-Jin | - |
dc.contributor.localauthor | Choi, Jung-Woo | - |
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