透過您的圖書館登入
IP:18.118.140.108
  • 學位論文

奈米級雷射直寫平台之掃描控制

Scan Motion Control of a Laser Direct Writing Nano-Stage

指導教授 : 沈金鐘
若您是本文的作者,可授權文章由華藝線上圖書館中協助推廣。

摘要


本論文研製一奈米級雷射直寫平台的控制器,包含建立平台模型以及設定線性馬達的順滑模態控制參數和壓電致動器PI控制的參數,並配合雷射干涉儀以進行平台回授控制。多數平台掃描的路徑並沒有考慮方向轉換時所產生的劇烈震動以及加速度曲線的平滑度。沒有考慮加速度曲線的平台在加速度劇烈變化時(轉角處)會造成震動,這震動會使誤差增加,所以路徑規劃是不可或缺的一個環節。本論文透過公式推導將路徑公式化,設定位移、速度和加速度的最大值,去計算所需的加速度時間和等速區時間以達到路徑最佳化。本論文亦透過實驗分析壓電致動器的回授訊號中有哪些額外的影響因數,並利用快速傅立葉轉換做頻譜分析有哪些增益較大的訊號,藉以設計濾波器將其過濾,以改進控制結果。

並列摘要


In this thesis, the control of a laser direct writing nano-stage is studied. For obtaining long-stroke and high precision, this stage is formed by a linear motor driven stage and a piezoelectric actuator driven stage. In this study, the linear motors are controlled by sliding-mode controller and the piezoelectric actuator is controlled by PID controller. When doing the scan motion, the dramatic change in acceleration will cause undesirable oscillation and increase the positioning error. Therefore, the path planning is an important issue for motion control. In this study, an quadratic curve is used to define the acceleration curve of the movement. Based on this acceleration curve, a smooth path of the movement can be derived. Finally, the control results of the new controllers with new planed path are compared with the results that controlled by previous designed controller. Experimental results are proposed to demonstrate the performance of the new controller.

參考文獻


[12]沈和諭,2010,「H型長行程精密定位平台控制」,國立虎尾科技大學自動化工程研究所碩士論文,六月。
[10]王昱翔,2011,「奈米級雷射直寫平台之研製」,國立虎尾科技大學機械與機電工程研究所碩士論文,七月。
[1]謝東興,2009,「長行程奈米級平台技術開發」,國立虎尾科技大學機械與機電工程研究所碩士論文,七月。
[13]盧群中,2011,「六自由度奈米量測機控制」,國立虎尾科技大學自動化工程學系碩士論文,七月
[14]Richard C. Dorf and Robert H. Bishop, 2005, “Modern Control Systems”,10th Edition, NJ:Pearson Education.

延伸閱讀