Title :
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
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;
Conference_Titel :
Electrets (ISE), 2011 14th International Symposium on
Conference_Location :
Montpellier
Print_ISBN :
978-1-4577-1023-0
DOI :
10.1109/ISE.2011.6084968
