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Author: 葉仁超
Ye, Ren-Chao
Thesis Title: 創新聲波式振動樣品磁量儀開發
Innovative Sound-Exciting Vibrating Sample Magnetometer
Advisor: 謝振傑
Chieh, Jen-Jie
Degree: 碩士
Master
Department: 光電工程研究所
Graduate Institute of Electro-Optical Engineering
Thesis Publication Year: 2016
Academic Year: 104
Language: 中文
Number of pages: 42
Keywords (in Chinese): 振動樣品磁量儀海爾貝克陣列樣品檢測壓電蜂鳴片
Keywords (in English): VSM, Halbach, Sample testing, Piezo Electric Buzzer
DOI URL: https://doi.org/10.6345/NTNU202204345
Thesis Type: Academic thesis/ dissertation
Reference times: Clicks: 111Downloads: 0
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  • 本論文系統之基礎是建立於振動樣品磁量儀(VSM)的基本原理上,並使用Halbach array磁鐵環取代傳統電磁鐵與頻率為1750 Hz之音波振盪所結合而成的創新型振動樣品磁量儀。另外我們也進一步將系統整合並縮小空間要求,在材料選擇方面我們選用了PLA這種無磁性的材料,希望減少外來雜訊影響,樣品選擇使用微量離心管(Eppendorf tube)作為容器並設計樣品區使之容易替換,減少更換樣品必須清洗,甚至樣品殘留時影響訊號的麻煩。該系統成功應用於軟磁檢驗、高鐵票檢測、磁性奈米流體檢驗、磁性標記免疫檢測。

    目錄 第1章 緒論 1 1.1 振動樣品磁量儀(VSM) 2 1.2 免疫檢測 3 第2章 實驗原理 4 2.1 磁鐵陣列 4 2.1.1 Halbach array 4 2.1.2 Halbach cylinder 5 2.2 VSM 6 2.3 磁學 11 2.3.1 磁學原理 11 2.3.2 順磁性與反磁性 12 2.3.3 鐵磁性、反鐵磁性、亞鐵磁性 14 2.4 磁流體 15 2.4.1 磁流體簡述 15 2.4.2 磁流體應用 16 2.5 聲學 17 2.5.1 聲學原理 17 2.5.2 質點位移 17 2.5.3 駐波 18 2.6 壓電材料 20 2.6.1 壓電材料特性 20 2.6.2 壓電效應 21 第3章 系統架構 24 3.1 傳振模組 26 3.1.1 壓電陶瓷片(蜂鳴片) 26 3.1.2 蜂鳴片盒 27 3.1.3 傳振管設計 28 3.1.4 訊號放大電路設計 30 3.2 磁場模組 31 3.2.1 磁鐵組 31 3.2.2 磁鐵組旋轉系統 34 3.3 訊號接收模組 35 3.3.1 感應線圈 35 第4章 實驗結果 36 第5章 結論 40 5.1 結論 40 5.2 未來展望 40 參考文獻 41

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