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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/82305完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 林峻永(Chun-Yeon Lin) | |
| dc.contributor.author | Yi-Chin Wu | en |
| dc.contributor.author | 吳易秦 | zh_TW |
| dc.date.accessioned | 2022-11-25T06:35:23Z | - |
| dc.date.copyright | 2021-11-11 | |
| dc.date.issued | 2021 | |
| dc.date.submitted | 2021-08-25 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/82305 | - |
| dc.description.abstract | 本論文研究單點式磁電渦流感測系統開發，根據待測物種類分為生物磁電渦流感測系統及改良非導磁金屬磁電渦流感測系統，應用於生物異質物辨識及非導磁金屬導電率、厚度量測。磁電渦流感測器的原理為通入時變的電流於激勵線圈，量測產生之電渦流於被測物產生磁場之變化。依據待測物材料的種類，而有相對應的感測方法，如生物組織導電率較低，需要使用感應線圈量測磁通量變化產生的感應電動勢，而非導磁金屬導電率較高，可用量測磁通量密度的異相性磁阻感測器測量。 磁電渦流感測系統以分散式磁電渦流模型計算待測物產生的電渦流場及其產生的二次感應磁場做頻率響應分析，建立模擬的響應圖並且和實驗數據比對。生物磁電渦流感測器的用途為辨識生物組織的異質物，由一個激勵線圈和一對感應線圈組成的差動線圈系統構成，有效消除自身激勵線圈產生的磁場，進而量測生物體所感應的磁通量密度，放大生物組織導電率資訊。此論文亦改良非導磁金屬磁電渦流感測系統，硬體部份對於電流放大器的晶片進行更改，使電流放大倍率更大、更穩定；於異相性磁阻感測器的輸出端，加入儀表放大器，提高放大的精準度；並且加入磁感測器的重啟電路，使磁阻元件復位保持原本的性能，讓每一次量測都能更可靠，並將所有量測系統放置於同一機盒內，減少電磁干擾的誤差。軟體部分除了模型運算速度的優化，也對於實驗結果透過模型進行導電率與厚度量測的優化，而實驗量測端改進了掃頻量測的效率。 本論文提出之生物磁電渦流感測系統用於生物組織辨識，由掃頻的方法已經可以辨識豬肉和豬骨頭，未來期望能應用於生物組織的分類以及腫瘤檢測。而非導磁金屬磁電渦流感測系統，開發出一套量測非導磁金屬導電率、厚度量測儀，能夠透過模型讓誤差率低於15%，未來期望能配合硬體和軟體優化更精準量測。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2022-11-25T06:35:23Z (GMT). No. of bitstreams: 1 U0001-2508202113554700.pdf: 3276512 bytes, checksum: 7a18864c9bea0f508fa698297f75e7e1 (MD5) Previous issue date: 2021 | en |
| dc.description.tableofcontents | 致謝 i 中文摘要 ii ABSTRACT iii 表目錄 viii 圖目錄 ix 符號與縮寫解釋表 xi 第一章 前言 1 1.1 研究動機 1 1.2 文獻回顧 2 1.2.1 生物磁電渦流 2 1.2.2 金屬磁電渦流 3 1.3 問題描述 4 1.4 論文架構 4 第二章 磁電渦流感測器設計 5 2.1. 生物磁電渦流感測系統 6 2.1.1 感測器系統模型 6 2.1.2 感測器系統設計 11 2.2. 金屬磁電渦流感測系統 11 2.2.1. 感測器系統模型 11 2.2.2. 感測器系統設計 15 2.2.3. 導電率與厚度量測 15 2.2.4. 網格映射 17 2.2.5. 網格於集膚深度的處理 18 第三章 數值模擬驗證 20 3.1. 生物磁電渦流感測系統 20 3.1.1. DCS模型驗證 20 3.1.2. 頻域響應模擬分析 23 3.1.3. 腫瘤檢測的感測器設計分析 23 3.1.4. 模擬與實驗校正 25 3.2. 金屬磁電渦流感測系統 26 3.2.1. DCS模型驗證 26 3.2.2. 頻率響應模擬分析 27 3.2.3. 導電率與厚度同時量測的數值驗證 30 第四章 實驗架構與結果 32 4.1. 生物磁電渦流感測系統 32 4.2. 金屬磁電渦流感測系統 34 4.2.1. 實驗架設 34 4.2.2. 實驗模板於非導磁金屬量測 36 4.2.3. DCS模型用於實驗映射 40 4.2.4. 金屬磁感測器重複性 45 第五章 結論與未來展望 46 5.1. 結論 46 5.1.1. 生物磁電渦流感測系統 46 5.1.2. 金屬磁電渦流感測系統 47 5.2. 未來展望 48 5.2.1. 生物磁電渦流感測系統 48 5.2.2. 金屬磁電渦流感測系統 48 參考文獻 49 | |
| dc.language.iso | zh-TW | |
| dc.subject | 導電率 | zh_TW |
| dc.subject | 電渦流 | zh_TW |
| dc.subject | 磁感測器 | zh_TW |
| dc.subject | electrical conductivity | en |
| dc.subject | Eddy current | en |
| dc.subject | magnetic sensor | en |
| dc.title | 幾何及材料特性估測之單點式磁電渦流感測器開發 | zh_TW |
| dc.title | Development of Point Magnetic/Eddy-Current Sensing Systems for Estimation of Geometrical Parameters and Material Properties | en |
| dc.date.schoolyear | 109-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 黃漢邦(Hsin-Tsai Liu),陳亮嘉(Chih-Yang Tseng),楊鏡堂,陳永耀 | |
| dc.subject.keyword | 電渦流,磁感測器,導電率, | zh_TW |
| dc.subject.keyword | Eddy current,magnetic sensor,electrical conductivity, | en |
| dc.relation.page | 52 | |
| dc.identifier.doi | 10.6342/NTU202102714 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2021-08-25 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| dc.date.embargo-lift | 2026-08-20 | - |
| 顯示於系所單位： | 機械工程學系 | |
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| U0001-2508202113554700.pdf 未授權公開取用 | 3.2 MB | Adobe PDF | 檢視/開啟 |
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