Tailoring the performance of flexible loudspeakers by varying cell actuator formation

Author

Chen, Y.-C. ; Ko, W.-C. ; Liao, H.-C. ; Wu, W.-J. ; Chang, P.-Z. ; Lee, C.-K.

Author_Institution

Inst. of Appl. Mech., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2011

fDate

28-31 Aug. 2011

Firstpage

33

Lastpage

34

Abstract

In our study, models of our electret-based cell actuator in various shapes and sizes were established using finite element analysis (FEA) to study the resonance and vibration mode of the electret cell actuators. The first resonance frequency and mode shape of the electret cell diaphragm were obtained using an advanced vibrometer/interferometer device (AVID™) and an electronic speckle pattern interferometry (ESPI), respectively, to verify the models of the electret-based cell actuators. Both the simulation and experiment results were found to be in close agreement.

Keywords

acoustic wave interferometers; actuators; diaphragms; electronic speckle pattern interferometry; finite element analysis; loudspeakers; vibration measurement; vibrations; advanced vibrometer-interferometer device; electret cell diaphragm; electret-based cell actuator; electronic speckle pattern interferometry; finite element analysis; flexible loudspeakers; resonance frequency; vibration mode; Charge measurement; Mechanical variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets (ISE), 2011 14th International Symposium on

Conference_Location

Montpellier

ISSN

2153-3253

Print_ISBN

978-1-4577-1023-0

Type

conf

DOI

10.1109/ISE.2011.6084968

Filename

6084968