Feasibility of a high-powered carbon nanotube thin-film loudspeaker
The thermophone, conceived in 1917 by Arnold and Crandall, was a unique thermoacoustic loudspeaker. The high heat capacity per unit area (HCPUA) of thin-film materials at that time limited the usefulness of thermophones. Recently, researchers of carbon nanotubes (CNTs) have developed techniques to c...
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| Veröffentlicht in: | The Journal of the Acoustical Society of America 2013-09, Vol.134 (3), p.EL276-EL281 |
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| container_end_page | EL281 |
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| container_issue | 3 |
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| container_title | The Journal of the Acoustical Society of America |
| container_volume | 134 |
| creator | Barnard, Andrew R Jenkins, David M Brungart, Timothy A McDevitt, Timothy M Kline, Brian L |
| description | The thermophone, conceived in 1917 by Arnold and Crandall, was a unique thermoacoustic loudspeaker. The high heat capacity per unit area (HCPUA) of thin-film materials at that time limited the usefulness of thermophones. Recently, researchers of carbon nanotubes (CNTs) have developed techniques to create a super-aligned thin-film of multi-walled CNTs, possessing extremely low HCPUA. This paper will discuss CNT thin-film loudspeaker theory as well as some initial investigations into the feasibility of a high-powered audio CNT speaker. The advantages of such a loudspeaker include: Ultra-lightweight, compact, no moving parts, low cost, and independence from expensive rare-earth materials. |
| doi_str_mv | 10.1121/1.4817261 |
| format | Article |
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| ispartof | The Journal of the Acoustical Society of America, 2013-09, Vol.134 (3), p.EL276-EL281 |
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| source | MEDLINE; AIP Journals Complete; Alma/SFX Local Collection; AIP Acoustical Society of America |
| subjects | Acoustics - instrumentation Amplifiers, Electronic Equipment Design Feasibility Studies Models, Theoretical Motion Nanotubes, Carbon Pressure Sound Temperature Thermal Conductivity Transducers |
| title | Feasibility of a high-powered carbon nanotube thin-film loudspeaker |
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