臺灣博碩士論文加值系統

氣膠微粒為懸浮於氣體中的固體或液體微粒，而電動力懸浮設備(Electrodynamic balance, EDB)是用來擷取單一帶電氣膠微粒之特性資料以作為氣膠科學研究時的重要設備。在本研究中分析了EDB的動態特性，並利用Labview圖控軟體建立數位PID控制器，再以影像回授的方式加入原始EDB設備中，使其具有單一軸向靜電懸浮控制的能力，接著再依據推導出的EDB轉移函數設計出能滿足在要求的微粒粒徑及暫態行為的數位PID控制器，最後經由實驗測試，驗證了設計的控制器均能滿足要求的控制性能，提高本EDB系統在氣膠科學研究上的應用價值。

The aerosol particle is the solid or liquid particle suspend in the gas, and the electrodynamic balance (EDB) system is the important equipment which is adopted to capture the characteristic data of single charged particles for the scientific study of aerosol. This research analyzes the dynamic characteristic of the EDB system and introduces Labview Graphical Language software to set up the digital PID controller, joining the primitive EDB system with the image feedback for making the EDB system with the single-axial electrostatic suspension ability, and utilizing the inferred transfer function of EDB system to design the digital PID controller, which can meet the requirement of the transient response in a specific particle diameter. After validation by the scientific experiment, this controller is proven that its performance can meet the requirement of the transient response in a specific particle diameter and also increases the application value of the EDB system.

中文摘要………………………………………II
英文摘要………………………………………III
誌謝……………………………………………IV
目錄……………………………………………V
圖 目 錄………………………………………VII
表 目 錄………………………………………IX
符號說明………………………………………X
第一章 緒論………………………………1
1.1研究背景…………………………………1
1.2 研究動機與目的.………………………1
1.3 文獻回顧.………………………………1
1.4 研究目標.………………………………4
1.5 本文架構.………………………………5
第二章 EDB之特性及回授控制原理.……6
2.1 影像回授系統架構.……………………6
2.2 EDB工作原理……………………………8
2.3 微粒垂直運動方程式及靜動態特性.…9
2.4 PID控制器………………………………15
2.5 EDB回授系統的離散模型………………16
2.6 影像處理原理.…………………………18
第三章 EDB之回授系統軟硬體介紹.……20
3.1 多功能資料擷取卡.……………………20
3.2 電壓放大器.……………………………20
3.3 影像攝影機.……………………………21
3.4 人機介面.………………………………22
第四章 EDB系統測試與模擬.……………24
4.1 PID控制器設計…………………………24
4.2 前置濾波器的設計.……………………30
第五章 實驗測試 .…………………………32
5.1 迴路增益修正的結果.…………………32
5.2 追縱命令及干擾排除.…………………33
5.3 相對穩定度的測試.……………………35
第六章 結論及未來研究方向………………37
6.1結論………………………………………37
6.1未來研究方向……………………………37
參 考 文 獻…………………………………39

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