臺灣博碩士論文加值系統

本論文探討壓電陶瓷元件之電氣暫態響應分析、超音波減低摩擦力實驗、環型壓電變壓器之研製與性能測試，以及壓電致動自走車之研製與性能測試。首先，利用壓電陶瓷環之等效電路推導出電氣暫態響應公式及其相關特性，此特性包括最大開路電壓、時間常數及開路振盪頻率等。然後利用阻抗分析儀量測等效電路參數，以及利用電路模擬軟體PSIM模擬電氣暫態響應特性，此模擬結果再與量測結果相互比較。其次，利用壓電元件控制摩擦面之摩擦力大小，此壓電元件被安置於移動物體與滑行面之間。此摩擦力實驗著重於探討驅動電壓與頻率對物體移動速率、最大靜摩擦係數之影響。接著，利用壓電陶瓷元件製作出不同型式的壓電變壓器，而製作方式是採用電極分割方式規劃出輸出、入電極，以及探討負載電阻、驅動頻率對電壓增益及共振頻率之影響。最後，探討壓電致動自走車之工作原理、機構設計與性能測試。此性能測試著重於驅動電壓與頻率、負載重量對車體移動速率之影響評估。

This thesis investigates an electrical transient analysis of a piezoceramic ring, an experiment of ultrasonic frictional reduction, and design and implementation of ultrasonic devices such as ring-shaped piezoelectric transformers (PTs) and a piezoelectric mobile robot. For the electrical transient analysis, an equivalent circuit of the piezoceramic ring is first expressed. Then, electrical transient responses of the piezoceramic disk and their characteristics, including maximum open-circuit voltage, oscillation frequency and time constants, are measured and simulated. For the frictional reduction, a piezoelectric element is mounted between a moving object and a sliding surface to control the friction on a moving surface of the object. Also, effects of driving voltages and operating frequencies on moving velocities and maximum coefficients of static friction are measured and discussed. For development of the PTs, any type of the PTs is fabricated on a piezoceramic ring by electrode’s configuration for forming input and output electrodes of the PT. Also, effects of load resistances and operating frequencies on voltage gains and resonance frequencies are measured and discussed. Finally, operating principle, mechanism design and performance test for the piezoelectric mobile robot are studied. The research of the piezoelectric mobile robot is focused on effects of driving voltages, operation frequencies and weights of loads on moving velocity.

致謝 I
英文摘要 II
中文摘要 III
目錄 IV
圖目錄 VI
表目錄 XI
符號表 XIII
第一章 緒論 1
1.1 研究動機與目的 1
1.2 論文大綱 3
第二章 壓電元件暫態響應分析 5
2.1 元件結構與等效電路 5
2.2 暫態響應公式推導 9
2.3 驅動電路設計與製作 13
2.4 暫態響應量測與模擬 16
第三章 超音波減低摩擦力實驗 25
3.1 摩擦力理論 25
3.2 實驗平台架構 29
3.3 實驗結果 31
第四章 扇型壓電變壓器之研究 35
4.1 結構設計 35
4.2 工作原理 36
4.3 等效電路分析 37
4.4 測試系統 45
4.5 實驗結果 47
4.5.1 單輸出扇型壓電變壓器實驗結果 47
4.5.2 雙輸出扇型壓電變壓器實驗結果 52
4.5.3 綜合比較分析 63
第五章 環型壓電變壓器之研究 69
5.1 單輸出環型壓電變壓器之設計、製作與測試 69
5.1.1 結構設計 69
5.1.2 等效電路分析 69
5.1.3 測試系統 71
5.1.4 實驗結果 72
5.2 多輸出環型壓電變壓器之設計、製作與測試 81
5.2.1 結構設計 81
5.2.2 等效電路分析 82
5.2.3 測試系統 84
5.2.4 實驗結果 85
第六章 壓電致動自走車之研究 94
6.1 機構設計 94
6.2 動作原理 95
6.3 測試系統 96
6.4 實驗結果 97
第七章 結論與建議 103
7.1 結論 103
7.2 建議 104
參考文獻 105

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