Active sound transmission control for windows using carbon nanotube based transparent thin film speakers

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Abstract

This paper explores the development of active sound transmission control systems for windows using transparent thin film speakers. A unique transparent thin film speaker consisting of a piezoelectric PVDF thin film coated with compliant carbon nanotube (CNT) based transparent conductors is developed. Acid treatment for single-walled carbon nantotubes (SWNTs) and layer-by-layer (LBL) nanoassembly based surface modification of the substrates are used to obtain highly transparent and conductive CNT thin films on both sides of a PVDF film. The developed thin film speaker shows good acoustic response over a broadband frequency range, and has the advantages of being flexible, transparent, and lightweight. Experimental results are presented showing that over 10 dB reduction in sound transmission is achieved globally. The transparent thin film actuators can thus be effectively used as actuators for active sound transmission control systems for windows.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Dynamic Systems and Control Division 2005
Pages1857-1863
Number of pages7
Volume74 DSC
Edition2 PART B
DOIs
StatePublished - Dec 1 2005
Event2005 ASME International Mechanical Engineering Congress and Exposition, IMECE 2005 - Orlando, FL, United States
Duration: Nov 5 2005Nov 11 2005

Other

Other2005 ASME International Mechanical Engineering Congress and Exposition, IMECE 2005
CountryUnited States
CityOrlando, FL
Period11/5/0511/11/05

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Yu, X., Rajamani, R., Stelson, K. A., & Cui, T. (2005). Active sound transmission control for windows using carbon nanotube based transparent thin film speakers. In Proceedings of the ASME Dynamic Systems and Control Division 2005 (2 PART B ed., Vol. 74 DSC, pp. 1857-1863) https://doi.org/10.1115/IMECE2005-81108