| Summary: | 碩士 === 大葉大學 === 工業工程與科技管理學系 === 100 === This study is researching into the character of bio-cellulose membrane on the flat-panel speakers. Researching the effects of different manufacturing parameter of bio-cellulose membrane applied to the membrane of speakers. This study design and manufacture two size flat-panel speakers that are miniature circular flat-panel speakers (ψ16mm×H7.8mm) and rectangular flat-panel speakers (L162mm×W115mm× H10mm).
For the feasibility of bio-cellulose membrane on the flat-panel speakers and the study researching into the manufacturing parameters which coating, drying temperature and thickness. This study obtains their mechanical properties (Young's modulus, Poisson’s ratio) by tensile test and researching the sound pressure level (SPL) curve of flat-panel speakers with different bio-cellulose membrane then dig out the optimal manufacturing parameter with bio-cellulose membrane. In the analysis, the paper is using ANSYS software to calculate the amplitude of vibration and phase angle then substitution to the formula of SPL, its computing solution substitution to Fortran software solve the SPL. Manufacturing flat-panel speakers to measure the SPL curves and its experimental results compare with simulation analysis to verify the correctness of theoretical analysis.
In this study, the best bio-cellulose membrane on the miniature circular flat-panel speakers which is non-surround, thickness S and drying temperature 30 ℃ with all the experiments of flat-panel speakers. We hope for the choice of membrane on the circular flat-panel speakers can be used as a reference.
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