Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/1643
標題: 微型表面聲波致動器驅動光學鏡頭之可行性研究
A feasibility study of miniaturized surface acoustic wave actuator to drive optical lens
作者: 翁揚智
Wang, Yang-Jr
關鍵字: Surface acoustic wave;表面聲波;coupling of model;finite element method;模態耦合模型;有限元素法
出版社: 機械工程學系所
引用: 【1】M. Takasaki, “An Ultrasonic X-Y Stage Using 10MHz Surface Acoustic Wave,” Ultrasonics Symposium , pp. 535-538, 1994. 【2】魏煒圻,「搶食自動對焦大餅MEMS瞄準手機相機市場」,新通訊2011 年3月號121 期 【3】L. Rayleigh, “On waves propagated along the plane surface of an elastic solid,” 1885. 【4】R. M. White and F. W. Voltmer, “Direct piezoelectric cupling to surface elastic waves,” vol. 7, APPLIED PHYSICS LETTERS, 1965. 【5】M. K. Kurosawa, M. Chiba and T. Higuchi, ‘‘Evaluation of a surface acoustic wave motor with a multi-contact-point slider,’’ Smart Mater. Struct., pp. 305-311, 1998. 【6】K. Asai, ‘‘Evaluation of the driving performance of a surface acoustic eave linear motor,’’ IEEE Ultrasonics Symposium, 2001. 【7】M. Takasaki, M. K. Kurosawa, T. Higuchi, ‘‘Optimum contact conditions for miniaturized surface acoustic wave linear motor,’’ Ultrasonics, vol. 38, pp. 51-53, 2000. 【8】M. K. Kurosawa, H. Itoh, K. Asai, M. Takasaki, and T. Higuchi, ‘‘Optimum of slider contact face geometry for surface acoustic wave motor,’’ IEEE, 2001. 【9】M. K. Kurosawa, H. Itoh, and K. Asai, ‘‘Influence of elastic deformation in surface acoustic wave motor friction drive,’’ The 11th International conference on Solid-State Seneors and Acturtors, Munich, Gemany, June, pp. 10-14, 2001. 【10】T. Shigematsu, ‘‘Nanometer stepping drives of surface acoustic wave motor,’’ IEEE Transactions on ultrasonics, Ferroelectrics, and frequency control, vol. 50, NO. 4, 2003. 【11】Y. Nakamura, M. K. Kurosawa, and T. Shigematsu, ‘‘Effects of ceramic thin coating on friction surface for surface acoustic wave linear motor,’’ IEEE Ultrasonics Symposium, 2003. 【12】T. Shigematsu, M. K. Kurosawa, ‘‘Miniaturized SAW motor with 100MHz driving frequency,’’ IEEE, 2004. 【13】T. Shigematsu, M. K. Kurosawa, ‘‘Friction drive dynamics of surface acoustic wave motor,’’ IEEE Ultrasonics Symposium, 2005. 【14】K. Sakano, M. K. Kurosawa, and T. Shigematsu, ‘‘Surface acoustic wave motor with flat plane slider,’’ IEEE, 2008. 【15】K. Haahimoto, ‘‘Surface acoustic wave devices in telecommunications modeling and simulation,’’ 2000. 【16】K. Asai, and M. K. Kurosawa, ‘‘Simulation model of surface acoustic wave motor considering tangential rigidity,’’ Electromics and communications in Japan, Prat3, vol. 87, No. 2, 2004. 【17】K. Uchino, ‘‘Ferroelectric Devices,’’ Marcel Dekker, Inc, 2000. 【18】Y. Nakamura, M. K. Kurosawa, and T. Shigematusu ‘‘Piezoelectric transformers using LiNbO3 single crystals,’’ Electronics and Communications in Japan, Part3 81(7). 1998. 【19】Philips, Data HandbookMA03, ‘‘Piezoelectric Ceramics Specialty Ferrites,’’ Philips Components, 1997. 【20】J. F. Rosenbaun, ‘‘Bulk acoustic wave theory and divices,’’ pp. 45-79, 1988. 【21】P. J. Freenstra, ‘‘Modeling and control of surface acoustic wave motors,’’ pp.25-28, 2005. 【22】M. K. kurosawa, ‘‘Friction drive simulation of surface acoustic wave motor by nano vibration,’’ 2007. 【23】R. Hull Ed., ‘‘Properties of crystalline silicon,’’ INSPEC, 1999. 【24】J. Kushibiki, I. Talanaga, M. Arakawa, and T. Sannomiya, ‘‘Accurate measurements of the acoustical physical constants of LiNbO3 and LiTaO3 single crystals,’’ IEEE Transactions on ultrasonics, Ferroelectrics, and frequency control, vol. 46, pp. 1315-1323, 1999. 【25】D. A. Spence, ‘‘Self similar solutions to adhesive contact problems with incremental loading,’’ Proc. Roy. Soc. A., vol. 305, pp. 55-80, 1968.
摘要: 
隨著消費市場對手機薄型化的要求越來越高,各手機廠商在設計新型手機時對手機內部各元件的尺寸限制也越來越嚴苛。為了滿足手機自動對焦功能,本論文擬引進更具微小化潛力的表面聲波致動器來推動手機之光學鏡頭。
本論文蒐集了各種表面聲波馬達之文獻,發現現今表面聲波馬達之研究雖有可以馬達輸出力的數值模擬方法,但數值模擬法中之重要參數’’表面聲波質點位移振幅’’只能從實際量測中取得。故本論文以有限元素軟體模擬得此位移振幅,並藉由耦合模態理論相互比對。成功模擬出表面聲波之位移振幅。並藉由將此振幅帶入馬達輸出力之模擬公式進而得到表面聲波馬達之輸出力。並討論指插電極型式、輸入電壓大小、壓電基材尺寸、滑塊尺寸和投影點設計對於表面聲波馬達輸出力之影響。希望提供欲設計表面聲波馬達者一設計方針。

The cell phone market request the new cell phone become smaller, so the cell phone designer restrict every component's volume which inside the cell phone. The main stream of auto-focus actuator of cell phone is voice coil motor (VCM). But the output force of VCM will decrease proportionally when it was miniaturized. The paper introduces the surface acoustic wave (SAW) motor to satisfy the auto-focus function of smaller cell phone.
The output force of SAW motor can be expected by simulation model. But the important parameter called normal displacement amplitude of surface particle can be found only by laser Doppler vibrometer. The paper can be separate into two parts. The first, use coupling of model (COM) and finite element method (FEM) to obtain the parameter which is 25.5nm and 40.3nm. The second, taking the result into the simulation model to discuss the relationship between inter digital transducer type, applied voltage, stator size, slider size, projection geometry and the SAW motor output force. The paper contributes a consultation to SAW motor designer.
URI: http://hdl.handle.net/11455/1643
其他識別: U0005-2208201115354400
Appears in Collections:機械工程學系所

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