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研究生:楊哲鈞
研究生(外文):Yang,Chechun
論文名稱:壓電風扇引發之流體速度量測
論文名稱(外文):Measurement of Flow Volecity Induced by Piezoelectric Fan
指導教授:李弘毅李弘毅引用關係
指導教授(外文):Li,Hongyi
口試委員:李弘毅湯同達顏維謀
口試委員(外文):Li,HongyiTang,TongdaYan,Weimou
口試日期:2011-05-27
學位類別:碩士
校院名稱:華梵大學
系所名稱:機電工程學系博碩專班
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2011
畢業學年度:99
語文別:中文
論文頁數:62
中文關鍵詞:壓電風扇電子冷卻粒子影像測速儀
外文關鍵詞:Piezoelectric FanElectronic CoolingParticle Image
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壓電風扇具有重量輕、體積小、低消耗功率、低噪音與使用壽命
長等優點。因此,壓電風扇適合使用於微型電子產品之冷卻,以維持
其穩定運作,避免因運作溫度過高,造成壽命減短或是損壞的情況發
生。
本論文探討將壓電風扇放置於玻璃箱內,透過粒子影像測速儀量
測壓電風扇運動時所引發之流場速度,拍攝不同位置之壓電風扇周圍
流體影像並加以分析。研究中發現壓電風扇之擺動位置於最頂端與最
底端時之流場速度最大,並且在擺動至最頂端與最底端時會產生些許
的渦流,而壓電風扇擺動至水帄位置時,葉片周圍並無太明顯之流場
速度,而流場速度最大值位於壓電風扇葉片前端。
Piezoelectric fans have the advantage of light weight, small volume,
low power consumption, low noise and long life. The applications of the
piezoelectric fans are suitable for electronic cooling to maintain stable
operation of electronic products and avoid high temperatures that shorten
life or cause damage.
In this thesis, the piezoelectric fan is placed in a glass box. The
Particle Image Velocimetry (PIV) system is used to measure the velocity
field induced by the piezoelectric fan at different locations. The results
reveal that the induced velocities are maximum when the piezoelectric
fan is at the top or the bottom positions. Vortices are generated around the
piezoelectric fan. The induced velocity is not obvious around the
piezoelectric fan when the piezoelectric fan is horizontal. The maximum
velocity is observed near the tip of the piezoelectric fan.
誌謝............................................................................................................I
摘要...........................................................................................................II
ABSIRACT................................................................................................III
目錄...........................................................................................................IV
圖錄...........................................................................................................VII
表錄...........................................................................................................IX
符號說明...................................................................................................X
第一章 緒論....................................................................................................1
1-1 背景及目的.................................................................................................1
1-2 文獻回顧...................................................................................................3
第二章 PIV 原理................................................................................................8
2-1 PIV 原理.................................................................................................8
2-2 傳統流場量測技術與 PIV 量測技術......................................................................9
2-3 PIV 理論分析...............................................................................................10
2-4 Cross-correlation.......................................................................................11
第三章 實驗設備與方法...........................................................................................17
3-1 實驗設備................................................................................................17

3-1.1 雙脈衝雷射系統.......................................................................................17
3-1.2 控制及數據擷取處理器..................................................................................18
3-1.3 高靈敏度 CCD 攝影機..................................................................................19
3-1.4 光頁產生系統及鏡片組..................................................................................20
3-1.5 粒子影像測速儀之計算應用分析軟體........................................................................21
3-1.6 雷射導光懸臂導光裝置..................................................................................22
3-1.7 數位式交流電源供應器..................................................................................22
3-1.8 煙霧產生器與蜂巢...... ...............................................................................23
3-1.9 壓電風扇.............................................................................................24
3-1.10 運算放大器..........................................................................................25
3-2 實驗環境.................................................................................................25
3-3 實驗方法.................................................................................................26
3-3.1 實驗步驟.............................................................................................27
3-3.2 實驗參數調整.........................................................................................28
第四章 結果與討論...............................................................................................47
4-1 壓電風扇實驗數據分析......................................................................................48
4-1.1 Camera Trigger Delay Time(ms)為 0ms 風扇向上........................................................48
4-1.2 Camera Trigger Delay Time(ms)為 3ms 風扇向上........................................................48
4-1.3 Camera Trigger Delay Time(ms)為 7ms 風扇向上.......................................................49
4-1.4 Camera Trigger Delay Time(ms)為 0ms 風扇向下........................................................50
4-1.5 Camera Trigger Delay Time(ms)為 3ms 風扇向下........................................................50
4-1.6 Camera Trigger Delay Time(ms)為 7ms 風扇向下........................................................51
第五章 結論與未來展望...........................................................................................58
5-1 結論....................................................................................................58
5-2 未來展望..................................................................................................59
參考文獻.......................................................................................................60
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4. Wait, S. M., Basak, S., Garimella, S. V., and Raman, A., “Piezoelectric
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5. Kimber, M., Garimella, S. V., and Raman, A., “Local Heat Transfer
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6. Garimella, S. V., “Advances in mesoscale thermal management
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7. Tseng, K. H., Mochizuki, M., Mashiko, K., Nguyen, T., Kiyoka, F.,
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8. Kimber, M., Suzuki, K., Kitunai, N., Seki, K., and Garimella, S. V.,
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9. Acikalin, T., and Garimella, S. V., “Analysis and Prediction of the
Thermal Performance of Piezoelectrically Actuated Fans” Heat
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10. Unal, M. F., Lin, J. C., and Rockwell, D., “Force Prediction by PIV
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11. Sumner, D., Price, S. J., Paidoussis, M. P., “Investigation of
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12. Son, S. Y., Kihm, K. D., and Han J. C., “PIV Flow Measurements for
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14. TSI, “INSIGHT 5 Particle Image Velocimetry Software,” TSI, 2002.

15. http://www.tsi.com, TSI

16. TSI, “Particle Image Velocimetry : Theory of Operation,” TSI, 1995.
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