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系統識別號 U0026-1407201413232200
論文名稱(中文) 應用於電磁熱療之新型可撓式線圈設計
論文名稱(英文) Innovative Flexible Soft Coil for Electromagnetic Thermotherapy
校院名稱 成功大學
系所名稱(中) 電機工程學系
系所名稱(英) Department of Electrical Engineering
學年度 102
學期 2
出版年 103
研究生(中文) 林方偉
研究生(英文) Fang-Wei Lin
學號 N26991653
學位類別 碩士
語文別 中文
論文頁數 74頁
口試委員 指導教授-戴政祺
口試委員-黃世杰
口試委員-張益三
口試委員-江朝文
中文關鍵字 電磁熱療  感應加熱  可撓式線圈  有限元素法 
英文關鍵字 electromagnetic thermotherapy  induction heating  flexible coil  finite element method 
學科別分類
中文摘要 熱消融應用在腫瘤治療上已經行之有年,此治療方式係透過感應加熱器於體外產生一高頻交變磁場,感應加熱在病灶中的治療針具,使針具溫度提升至足以殺死腫瘤細胞之溫度,以達到熱療的效果。影響電磁感應熱療法一個關鍵因素為感應磁場強度,直接影響針的加熱溫度。本論文主要目的為設計一新型軟性可撓式感應加熱線圈,由於其纏繞大小之彈性,增加了使用上的方便性,應用於電磁感應熱療上,突破舊有硬式線圈使用上之限制。由於其使用方式上不同,深度磁場的定義由原本硬式線圈下的垂直方向(Z軸)到針體的距離,重新定義為可撓式線圈內之水平方向(R軸)到針體之距離。本文以有限元素分析法軟體進行磁場大小模擬分析,並進行實際燒灼豬肝組織實驗。實驗結果發現,當線圈半徑增加時,電感值上升,使得機台輸出功率無法提升,故提出降低線圈感值的方法,增加機台輸出電流,提升加熱溫度到有效治療溫度。
英文摘要 Thermal ablation has been applied in tumor treatment for many years. This treatment method involves the use of an induction heater to generate an in vitro high-frequency alternating magnetic field. Subsequently, induction heating is performed using treatment needles inserted into lesions. The heating process enables the needles to reach temperatures sufficient for killing tumor cells and thus achieving effective thermotherapy. Deep magnetic field is the key factor to affect electromagnetic thermotherapy, and the heating temperature of needle directly. In this thesis, an innovative soft flexible coil using laminated copper films was designed, the flexible winding size of which enhances ease of use. Applying this type of coil to electromagnetic induction thermotherapy can overcome the limits of conventional hard coils. Because of use differences, the definition of depth of field changed from the distance between the needle and the vertical direction (Z-axis) below the hard coils to the distance between the needle and the horizontal direction (R-axis) within the flexible coils. In this study, finite element method was used to simulate magnetic fields for analysis. Experiments for porcine livers ablation were conducted. The results indicated that coil inductance increases as the coil radius increased, so that the output power of machine can’t be raised. Therefore, the proposed method reduces coil inductance to increase machine output current in order to enhance heating temperature.
論文目次 摘 要 I
Extended Abstract II
誌謝 VI
目錄 VII
圖目錄 IX
表目錄 XIII
第一章 緒論 1
1-1 研究背景 1
1-2 國內外文獻回顧 2
1-3 研究動機與目的 5
1-4 論文架構 6
第二章 感應加熱原理 7
2-1 簡介 7
2-2 感應加熱原理 8
2-2-1 線圈效應 8
2-3 感應加熱負載特性分析 9
2-3-1 加熱物件的相對導磁係數 9
2-4 有限元素分析法 9
第三章 感應加熱線圈設計與磁場模擬分析 10
3-1 前言 10
3-2 系統架構 11
3-2-1 電磁感應熱療系統架構 11
3-2-2 LCR串聯諧振電路 13
3-3 可撓式線圈設計與製作 16
3-3-1 可撓式線圈製作方法 16
3-3-2 設計公式 18
3-3-3 可撓式線圈電感值量測 21
3-4 感應加熱系統人機介面設計 26
3-5 有限元素分析法磁場模擬 28
3-5-1 有限元素分析軟體操作流程與步驟 28
3-5-2 線圈建模與參數設定 29
3-5-3 可撓式線圈磁場模擬 31
3-5-4 磁力線分佈圖之繪製 41
3-6 磁場大小數值解與解析解 44
3-6-1 圓形線圈磁場計算 44
3-6-2 可撓式線圈磁場計算與模擬軟體驗證 45
第四章 實驗結果與討論 48
4-1 實驗系統介紹 48
4-2 線圈電流量測 49
4-3 可撓式線圈加熱實驗 53
4-4 實驗結果與討論 64
第五章 實驗結果與討論 67
5-1 結論 67
5-2 未來展望 68
參考文獻 69
自述 74
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