Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)
- 2000.11a
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- Pages.191-194
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- 2000
Design of Low Frequency Flat Speaker by Piezofilm
Piezofilm 을 이용한 저주파 평면 스피커의 설계
- Published : 2000.11.01
Abstract
In this study, experimental verification of performance of flat speaker has been conducted. The piezofilm (PVDF) actuator has been designed to prevent the distortion of sound and make the frequency response of radiated sound flat. The electrode pattern of piezofilm actuator is optimized to satisfy the design objective. The formulation of design method is based on the coupled finite element and boundary element method and electrode pattern is optimized by genetic algorithm. The flat speaker with optimized piezofilm actuator has been manufactured. The sound pressure level at the distance of 50cm is measured using microphone and compared with the result of numerical simulation.