臺灣博碩士論文加值系統

本論文整合3D近場電紡技術，搭配高應變複合基板和電極圖案設計指動壓電感測器。其中，3D近場電紡技術是利用直寫式近場靜電紡絲製程將壓電奈米纖維以直寫方式沉積於基板表面上，並堆疊成3D結構以提升單位面積的壓電性能；高應變複合基板是根據複合基板融合大楊氏模數材料與小楊氏模數材料而成，當基板承受外力發生撓曲時，楊氏模數較大之材料應變量較小，楊氏模數較小之材料有較大的應變量，使覆著其上的壓電奈米纖維產生較多壓電電荷，同時可提升感測手指彎曲的靈敏度和線性度，最大提升約49.4%的靈敏度，取代傳統的幾何結構基板，因幾何結構基板本身的結構力學複雜，難以計算其應變量和調控參數取得最佳效益。接著研究電紡絲製程參數和電極串聯數目對感測器輸出增益的影響，纖維製程的優化提升2.19倍的電壓，而在電極圖案方面，本論文比較單電極、雙電極和三電極三種電極圖案的電性，其中三電極感測器之壓電輸出訊號較單電極感測器高出36%的電性。由實驗成果驗證，本論文所設計之指動壓電感測器具有良好的線性訊號曲線，靈敏度很高，可控制機械手爪作動，且只需配合手指彎曲動作即可同動遠端控制機械手爪抓取目標，未來可望優化此感測器性能並應用於更多可穿戴式裝置上，或隔空操作手臂完成提取任務。

This paper integrates 3D near-field electrospinning technology with high strain composite substrates and electrode patterns to design a piezoelectric finger force sensor. Among them, the 3D near-field electrospinning technology uses a direct write type near-field electrospinning process to deposit piezoelectric nanofibers on the surface of the substrate, and stacks them into a 3D structure to improve the piezoelectric performance per unit area; The high strain composite substrate is formed by fusing a large Young's modulus material and a small Young's modulus material on the composite substrate, so that the piezoelectric nanofibers coated thereon generate more piezoelectric charges, at the same time, can improve sensitivity and linearity of sensing finger bending. When the substrate is flexion by an external force, the material with larger Young's modulus has smaller strain, and the material with smaller Young's modulus has larger strain, which causes the piezoelectric nanofibers overlying it to generate more piezoelectric charge, while improving the sensitivity and linearity of sensing finger bending, replacing the traditional geometric structure substrate. Then study the influence of electrospinning process parameters and the number of series connected electrodes on the output gain of the sensor. It is verified by the experimental results that the piezoelectric finger force sensor designed by this paper has a good linear signal curve with high sensitivity, and the simple finger bending action can control the robotic claw to capture the target at the synchronous motion.

中文摘要 I
Extended Abstract II
誌謝 XII
圖目錄 XVI
表目錄 XX
第一章 緒論 1
1-1 前言與動機 1
1-2 研究方法 3
1-3 論文架構 4
第二章 文獻探討 5
2-1 靜電紡絲介紹與研究回顧 5
2-2 壓電纖維感測器 9
2-3 穿戴式裝置 17
第三章 指動壓電感測器設計 24
3-1 人體手部運動模式 24
3-2 高應變複合基板 26
3-3 電極圖案設計 45
第四章 指動壓電感測器製程與性能分析 46
4-1 高分子溶液製備 46
4-2 靜電紡絲實驗 50
4-3 PVDF纖維電性探討 54
4-4 指動壓電感測器電性分析 70
第五章 指動壓電感測器於機械手爪之應用 76
5-1 機械手爪系統之建構 76
5-2 遠端同動控制機械手爪 78
第六章 結論與未來展望 88
6-1 結論 88
6-2 未來展望 89
參考文獻 91

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