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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 吳政忠 | |
dc.contributor.author | Cheng-Hsien Hsieh | en |
dc.contributor.author | 謝正賢 | zh_TW |
dc.date.accessioned | 2021-06-15T02:33:43Z | - |
dc.date.available | 2011-08-18 | |
dc.date.copyright | 2009-08-18 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-08-14 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43946 | - |
dc.description.abstract | 藉由表面聲波於液-固界面時,所轉換而成之滲漏表面波(Leaky Rayleigh Wave)與縱波,來造成聲射流的現象(acoustic streaming)。利用這種現象,將微液珠置於疏水之基材表面上,再配合斜交指叉電極(SFIT)所激發之表面波,當能量大於驅動液珠之臨界值時,便可讓液珠沿聲波傳遞方向移動。本文旨在利用兩對斜交指叉電極之驅動與偵測功能,整合自動控制系統及提升電極與疏水薄膜之效能,建立一完善之多通道微液珠控制器,再配合具有溫控功能之上蓋系統,研發出一具有溫度控制功能之多液珠處理器。
本論文以氧化鋅奈米柱與硬脂酸之使用,成功於液珠驅動平台之表面定義具有蓮花效應之疏水薄膜,並針對斜交指叉電極效能做有效之提升;同時利用比例-積分控制器,將微液珠準確控制於所指定之位置上;最後,結合具有加熱功能之上蓋系統,對液珠進行加熱,並且以溫度感測器對加熱器作溫度量測,達到溫控效果。利用此具有溫度控制功能之多液珠處理器,將可以發展生醫檢測等方面之實驗室單晶片 | zh_TW |
dc.description.abstract | The surface acoustic wave excited by SFITs is used to drive the droplet on the hydrophobic surface. When SAW reaches the solid-liquid boundary, the acoustic streaming occurs in the liquid. If the acoustic streaming is large enough, the micro-droplet can be moved along the propagation direction of the surface acoustic wave. In the thesis, the temperature-controllable micro-droplets processor includes the following basic frameworks: the SAW device used to actuate and detect the droplet, the PI controller and the covered system with heaters and sensors.
In this system, the ZnO nanorods and the stearic acid are used to define the hydrophobic film. The improvement of insertion loss and quality of hydrophobic film can be used to promote the repeatable usability of the SAW device. For accomplishing the accurate position performance of micro-droplet actuation, the PI controller system is necessary. In order to achieve the temperature-controllable scheme, the covered system with heaters and sensors can be used to control the temperature of the droplets. Results of this study show that the biological applications are proven feasible by using the temperature-controllable micro-droplets processor. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T02:33:43Z (GMT). No. of bitstreams: 1 ntu-98-R96543012-1.pdf: 10686888 bytes, checksum: 2a9340caa0144d72c7eb0910ffacb0e8 (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | 致謝 I
摘要 II Abstract III Contents IV Symbols VI List of Figures IX List of Tables XI Chapter 1. Introduction 1 1-1 Research Motivation 1 1-2 Category of Micro-Droplets Processor 3 1-3 Literature Review 4 1-4 Content of the Chapters 5 Chapter 2. Principles of Micro-Droplets Processor 10 2-1 Surface Modification 11 2-1.1 Contact Angle 11 2-1.2 Self-Assembled Monolayer 12 2-2 Principles of Moving Droplets by SAW 13 2-2.1 Design of SFITs 14 2-2.2 Acoustic Streaming 15 2-3 Designs of Micro-Heaters and Sensors 17 Chapter 3. Setup of the Multiple Micro-Droplets Processor 27 3-1 Principle of the PI Algorithm 27 3-2 Fabrication of the SAW Devices 28 3-3 Fabrication of Multiple Channels 30 3-3.1 Deposition of the Multiple Channels 30 3-3.2 Fabrication of the Hydrophobic Film 32 3-4 Fabrication of Micro-Heaters and Sensors 33 3-5 Experimental Setup 36 Chapter 4. Measurement Results 51 4-1 Frequency Response for Droplet Location 51 4-1.1 Time Gating Approach 52 4-1.2 Droplet Localization 53 4-2 Transport of Micro-Droplets 54 4-2.1 The effect of the PI parameters 55 4-2.2 Manipulation of the Micro-Droplet on the SAW Device 55 4-3 Temperature-Controllable Micro-Droplets Processor 57 4-3.1 Temperature Distribution of Micro-Heaters 57 4-3.2 Relationship between Temperature and Sensor 58 4-3.3 Transport of Micro-Droplet Squeezed between two Planes 59 Chapter 5. Conclusions and Future Works 73 5-1 Conclusions 73 5-2 Future Works 74 Reference 76 | |
dc.language.iso | en | |
dc.title | 表面聲波式多液珠溫控處理器之研製 | zh_TW |
dc.title | Development of temperature-controllable micro-droplets processor based on surface acoustic wave device | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 郭茂坤,吳文方,孫嘉宏 | |
dc.subject.keyword | 斜交指叉電極,疏水薄膜,比例-積分控制器,溫度控制,表面聲波,微液珠, | zh_TW |
dc.subject.keyword | SFIT,Hydrophobic film,PI control,Temperature-controllable,SAW,Micro-droplet, | en |
dc.relation.page | 79 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2009-08-14 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 應用力學研究所 | zh_TW |
顯示於系所單位: | 應用力學研究所 |
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