TY - GEN
T1 - Active noise control in pipes and ducts using carbon nanotube thermophones
AU - Barnard, Andrew R.
AU - Senczyszyn, Steven A.
N1 - Funding Information:
The authors would like to acknowledge the sponsors of this work including the Michigan Economic Development Corporation under the supervision of Denise Graves, Ford Motor Company under the supervision of Al Frank, The National Science Foundation I-Corps program under the supervision of Steven Konsek, and the Michigan Technological University Research Excellence Fund.
Publisher Copyright:
© Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Carbon nanotube thin films provide the capability to rapidly oscillate their surface temperature on time scales less than 10 nanoseconds. This unique feature allows them to be used as a thermophone, or thermoacoustic heat engine. As the surface of the film is rapidly and periodically heated by an electrical input signal, the surrounding air expands and contracts with the periodic heating to create a propagating acoustic wave. This type of loudspeaker is solid state with no moving parts and lightweight because there is no need for heavy magnets. In this paper, a coaxially configured thermophone will be discussed with applications in active noise control in pipes and ducts. Design parameters will be discussed as well as preliminary active noise cancellation data. Commercialization technical challenges will be presented.
AB - Carbon nanotube thin films provide the capability to rapidly oscillate their surface temperature on time scales less than 10 nanoseconds. This unique feature allows them to be used as a thermophone, or thermoacoustic heat engine. As the surface of the film is rapidly and periodically heated by an electrical input signal, the surrounding air expands and contracts with the periodic heating to create a propagating acoustic wave. This type of loudspeaker is solid state with no moving parts and lightweight because there is no need for heavy magnets. In this paper, a coaxially configured thermophone will be discussed with applications in active noise control in pipes and ducts. Design parameters will be discussed as well as preliminary active noise cancellation data. Commercialization technical challenges will be presented.
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M3 - Conference contribution
AN - SCOPUS:85060384220
T3 - Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics
SP - 107
EP - 119
BT - Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics
A2 - Moens, D.
A2 - Desmet, W.
A2 - Pluymers, B.
A2 - Rottiers, W.
PB - KU Leuven - Departement Werktuigkunde
T2 - 28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018
Y2 - 17 September 2018 through 19 September 2018
ER -