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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25156完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 薛文証(Wen-Jeng Hsueh) | |
| dc.contributor.author | Hao-Hsiang Hung | en |
| dc.contributor.author | 洪浩翔 | zh_TW |
| dc.date.accessioned | 2021-06-08T06:03:48Z | - |
| dc.date.copyright | 2007-07-26 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-07-24 | |
| dc.identifier.citation | [1] W. P. Mason, Electromechanical Transducers and Wave Filters. 2nd ed. Princeton, NJ: Van Nostrand-Reinhold, 1948.
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Kino, Acoustic Waves: Devices, Imaging, and Analog Signal Processing, Englewood Cliffs, NJ: Prentice Hall, 1987. [34] J. F. Rosenbaum, Bulk Acoustic Wave Theory and Devices, Boston: Artech House, 1988. [35] J. Xu, R. Stroud, Acousto-Optic Device: Principles, Design, and Applications, NY: Wiley-Interscience, 1992. [36] D. Royer, E. Dieulesaint, Elastic Wave in Solids (I), NY: Springer-Verlag, 2000. [37] D. Royer, E. Dieulesaint, Elastic Wave in Solids (II), NY: Springer-Verlag, 2000. [38] 丘國鋒，「一種壓電作動器之分析與設計」，國立台灣大學 程科學及海洋工程學研究所碩士論文，民國94年7月。 [39] 吳佳翰，「熱治療超音波換能器設計」，國立台灣大學工程 學及海洋工程學研究所碩士論文，民國95年6月。 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25156 | - |
| dc.description.abstract | 具反向層之超音波壓電換能器近年來受到各方重視，被認為是一種設計寬頻換能器的好方法。本文將提出具反向層雙層壓電片之超音波壓電換能器的解析模型，並利用轉移矩陣法來分析有關換能器之電輸入阻抗及效率。
文中說明換能器各結構層，包含單、雙層壓電片且具反向層、背部材料及匹配層等之設計理念，並探討反向層厚度比、背部材料特徵阻抗及有無匹配層對於換能器頻寬及效率之影響，進而找出其中最佳之設計。 本研究成功地以轉移矩陣法模擬出具反向層之多層超音波壓電換能器結構之理論及數值計算，有助於完成雙頻操作模式被使用在大部分超音波應用中之諧波影像或寬頻等特性。 | zh_TW |
| dc.description.abstract | Recently, ultrasonic piezoelectric transducer with an inversion layer has been gaining interest in the development of broadband transducer. In this research we present an analytical model for the analysis of double-layer ultrasonic piezoelectric transducers with an inversion layer. We also analyzed electric input impedance and efficiency of transducers by transfer matrix method.
The design of transducers including single and double-layer piezoelectric films with an inversion layer, backing material, and matching layer is presented. Effects of inversion layer ratio and characteristic impedance of backing material on the performace are studied. Whether transducer bandwidth and efficiency have matching layers or not we make sure of those effects. Finally, numerical calculations of multilayer ultrasonic piezoelectric transducers by transfer matrix method is examined to understand the characteristics of the transducers working in dual-frequency operation mode, which has been used in harmonic image or broadband characteristic of most ultrasonic applications. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T06:03:48Z (GMT). No. of bitstreams: 1 ntu-96-R94525038-1.pdf: 1189286 bytes, checksum: 568ae15bda48d57d268fc6215bc54798 (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | 摘要 i
Abstract ii 目 錄 iii 圖目錄 iv 表目錄 vi 符號表 vii 第一章 序論 1 1-1 背景與研究動機 1 1-2 文獻回顧 3 1-3 論文架構 7 第二章 超音波壓電換能器原理 8 2-1 Mason等效電路 8 2-1-1 壓電材料之波動方程式 8 2-1-2 阻抗矩陣 11 2-2 多層超音波壓電換能器結構 18 第三章 層狀壓電換能器之分析 24 3-1 控制方程式之關係式 24 3-2 轉移矩陣之分析 27 3-3 單層壓電片之解析 30 3-4 雙層壓電片之解析 37 3-5 具匹配層之數值分析 42 第四章 層狀壓電換能器數值模擬 49 4-1 雙層壓電片之數值模擬 49 4-1-1 反向層厚度比之影響 50 4-1-2 背部材料之影響 60 4-2 具匹配層之數值模擬 65 4-2-1 反向層厚度比之影響 65 4-2-2 背部材料之影響 77 第五章 結論與展望 83 5-1 結論 83 5-2 未來展望 84 參考文獻 85 | |
| dc.language.iso | zh-TW | |
| dc.subject | 超音波壓電換能 | zh_TW |
| dc.subject | 頻寬 | zh_TW |
| dc.subject | 效率 | zh_TW |
| dc.subject | 轉移矩陣法 | zh_TW |
| dc.subject | 反向層 | zh_TW |
| dc.subject | efficiency | en |
| dc.subject | inversion layer | en |
| dc.subject | ultrasonic piezoelectric transducer | en |
| dc.subject | transfer matrix method | en |
| dc.subject | bandwidth | en |
| dc.title | 具反向層之多層超音波壓電換能器特性 | zh_TW |
| dc.title | Characteristics of Multilayer Ultrasonic Piezoelectric Transducers with an Inversion Layer | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 黃維信(Wei-Shien Hwang) | |
| dc.contributor.oralexamcommittee | 孔慶華(Chin-Hwa Kong),陳永祥(Yung-Hsiang Chen),柯文俊(Wen-Jiunn Ko) | |
| dc.subject.keyword | 反向層,超音波壓電換能,頻寬,效率,轉移矩陣法, | zh_TW |
| dc.subject.keyword | inversion layer,ultrasonic piezoelectric transducer,bandwidth,efficiency,transfer matrix method, | en |
| dc.relation.page | 89 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2007-07-26 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
| 顯示於系所單位： | 工程科學及海洋工程學系 | |
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