臺灣博碩士論文加值系統

感測器作為一種電化學科學，其應用包括診斷及環境分析、生理機能及程序控制，因此在相關應用中如何正確的檢測感測器之訊號為最重要的課題。本研究之目的為提供一多電極量測系統，針對電壓式元件進行一動態量測與及時顯示之操作。本論文中將此系統分為二部份，一為電極之製備，另一為系統之架設。電極之備製有二: 一為非可撓式之電極，另一為可撓式電極，其實行之方式為使用射頻濺鍍系統於不同基板上進行感測膜的備製，及以手工或網印技術進行電極之封裝。此外，本研究所量測數據將自動的進行儲存為一記錄檔及一曲線圖檔，可提供附加之系統功能進行元件特性之分析。然而，本虛擬儀表所檢測之訊號是否滿足實際的應用，吾人於本論文中說明其可行性之比較及分析，因此相關電極之量測可用來進行如感測度、線性度及穩定度的特性分析。

The sensor is a kind of device about electrochemical science, and its applications include clinical and environmental analyses, physiology, process control, etc. Therefore, how to accurately detect the sensor signal is one of the most important procedures for relative applications. In this study, a multi-electrode measurement system was prepared for potentiametric sensor to proceed with dynamic measurement and real-time display. This system will be classified with two parts, which are the fabrication of electrode and embodiment of the measurement system. However, the fabrication methods of electrode are provided and presented as two species of structures: one is the non-flexible electrode, and the other is flexible electrode. The embodied methods are to deposit the sensing membrane onto the different substrates using the R.F. sputtering system, and package using handmade process for non-flexible electrode or screen-printing technique for flexible electrode. Additionally, the measured information will be automatically stored as the measurement record and graph files for surveying afterward to analyze the characteristics of sensor by the appended functions. Nevertheless, this designed virtual instrument is used to detect signal whether the measurement system is suitable to be applied. The feasibility of designed system will be compared and analyzed. Therefore, the measurement of the electrode will be proceeded with its characteristic analysis such as sensitivity, linearity, stability, etc.

Chinese Abstract…………………………………………i
English Abstract…………………………………………iii
Acknowledgement……………………………………………v
Contents……………………………………………………vi
List of Figures…………………………………………viii
List of Tables……………………………………………xi

Chapter 1 Introduction…………………………………1
1.1. Background……………………………………………1
1.2. Motivation and Purpose……………………………5
1.3. Process and Framework……………………………7
Chapter 2 Theory Description…………………………17
2.1. Introduction…………………………………………17
2.2. Sensing Mechanism……………………………………18
2.2.1. Electrical Double Layer…………………………18
2.2.2. Electrochemical Electrode Reaction……………21
Chapter 3 Electrode and Device…………………………28
3.1. Introduction……………………………………………28
3.2. Electrodes………………………………………………29
3.2.1. Introduction…………………………………………29
3.2.2. Non-Flexible Electrode……………………………32
3.2.3. Flexible Electrode…………………………………33
3.3. Read-out Circuit………………………………………35
3.4. Analog to Digital Converter…………………………41
Chapter 4 Virtual Instrument………………………………63
4.1. Introduction……………………………………………63
4.2. Acquisition Framework…………………………………64
4.3. Display and Storage Framework………………………66
4.4. Analysis Framework……………………………………67
Chapter 5 Results and Discussion…………………………78
5.1. Feasibility of Measurement System…………………78
5.2. Measurement Results of pH-electrodes……………81
5.3. Stability Analyses of pH-electrodes………………86
Chapter 6 Conclusions………………………………………116
Chapter 7 Future Prospects…………………………………119
References………………………………………………………123
Questions and Answers for Oral Test………………………128
Appendix I: Chinese Introduction…………………………143
Appendix II: Autobiography…………………………………153

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