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研究生:張弘毅
研究生(外文):Hung-Yi Chang
論文名稱:生物材料之電氣參數的量測技術之開發
論文名稱(外文):DEVELOPMENT OF MEASUREMENT TECHNIQUES FOR ELECTRICAL PARAMETERS OF BIO-MATERIALS
指導教授:黃啟芳黃啟芳引用關係
指導教授(外文):Chi-Fang Huang
口試委員:黃啟芳
口試委員(外文):Chi-Fang Huang
口試日期:2015-07-24
學位類別:碩士
校院名稱:大同大學
系所名稱:通訊工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:英文
論文頁數:71
中文關鍵詞:生物材料量測技術
外文關鍵詞:measurement techniquesbio-materials
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在電磁領域中,所有的材料都能用三個參數來表示,分別為介電常數、導磁系數以及導電率。在通訊領域中,無論是天線、高速數位傳輸、或是連接器,介電常數在這之間的影響都是非常大的。
本篇論文主要在討論有關介電常數量測的技術。我們使用到的量測儀器是網路分析儀(vector network analyzer)。
而在本篇論文的量測技巧共包含了兩種方法,所針對的對象為生物的材料。其中一種是利用共振腔(cavity)來量測軟性的生物材料,而另外一種則是利用NRW (Nicolson-Ross-Weir)法來推算硬性生物材料的介電係數。而與一般不同的是,我們藉由改變原本的NRW法的公式,並以微帶傳輸線為量測夾具來實現此方法,而和一般的NRW方法比較起來便利許多。
使用上述的兩種介電質量測方法,我們完成四種不同的生物材料量測,分別為脂肪、肌肉、骨頭以及牙齒。
In the electromagnetic field, all materials can be represented by three parameters, the dielectric constant (r), permeability (μ_r) and conductivity (σ). The dielectric constant is very important in antenna, high-speed digital design, connecter design and everything about communication.
In this thesis, we are concerned with techniques for measuring the dielectric constant. It uses vector network analyzer in measuring.
There are two techniques in measuring in this thesis. The objects we measure are bio-materials. One of the two techniques is Cavity Method; we use it to measure the soft bio-material. The other techniques are NRW method; we use it to measure the hard bio-material. Moreover it is different from the traditional Nicolson-Ross-Weir method; we change the formula to suit in Micro strip line. It is more convenient than traditional NRW method.
By using two mentioned ways, we finish four different bio-material measurements. This is fat, muscle, bone and teeth.
ABSTRACT I
CHINESE ABSTRACT II
ACKNOWLEDGMENTS III
TABLE OF CONTENTS V
LIST OF FIGURES VIII
LIST OF TABLES XI
CHAPTER 1 INTRODUCTION 1
1.1 Measurement of dielectric constant 1
1.2 Applications of dielectric constant measurement 1
1.3 Measurement methods 2
1.3.1 Relative Measurement 3
1.3.2 Absolute measurement 4
CHAPTER 2 REVIEW OF MEASUREMENT TECHNIQUE 8
2.1 Theory of cavity 8
2.2 Nicolson-Ross-Weir method[8] for microstrip line 13
2.2.1 The microstrip line design 14
2.2.2 The Nicolson-Ross-Weir method [8] 15
CHAPTER 3 DIELECTRIC CONSTANT MEASUREMENT FOR SOFT BIO-MATERIA 24
3.1 The design process of the resonator cavity 24
3.2 Measuring dielectric constant of fat 25
3.3 Measuring dielectric constant of Muscle 30
3.4 Adjustable resonator cavity design 34
3.5 The adjustable cavity measurement of air 35
3.6 The adjustable cavity measurement of fat 38
3.7 The disadvantage and improve 41
CHAPTER 4 DIELECTRIC CONSTANT MEASUREMENT FOR HARD BIO-MATERIAL 42
4.1 Introduction 42
4.2 S-parameter 42
4.3 The calibration plan transformation [11] 43
4.4 The microstrip line design [12] 45
4.5 Measurement Result of FR4, bone, teeth 51
4.6 Summary 53
CHAPTER 5 CONCLUSION 53
REFERENCE 54
APPENDIX 56
[1]David K. Cheng, Field and Wave Electromagnetic, Second Edition, Addison-Wesley Publishing Company. Inc.
[2]http://www.sciencedaily.com/releases/2013/03/130314175709.htm
[3]Hsuan-Yi Chao and Chi-Fang Huang, “A Simple Method for Dielectric Constant Measurement of Bio-Materials”, GCBME 2014.
[4]黃啟芳, “二維串接微帶天線之分析”,大同工學院電機工程研究所,碩士論文,1983年。
[5]Hewlett-packard, Product note HP 8510-3
[6]W. F. Richards, Y. T. LO, Fellow, and J. Brewera, “Simple Experimental Method for Separating Loss Parameters of a Microstrip Antenna”, IEEE Transactions on Antennas and Propagation, Vol. ap-29, No. 1, January 1981
[7]B. C. Jordan and K. G. balmain, Relectromagnetic waves and radiating system (Prentice-Hall, Inc., 1968), Chapter 11.
[8]Neil Patel, “Theory, Simulation, Fabrication and testing of double negative and epsilon near zero metamaterials for microwave applications”, The Faculty of California Polytechnic State University, master’s thesis, 2008。
[9]Ugur Cem Hasar and Charles Roger Westgate, “A Broadband and Stable Method for Unique Complex Permittivity Determination of Low-Loss Materials”, IEEE Transactions on Microwave Theory and Techniques, Vol. 57, No. 2, February 2009.
[10]A. M. Nicolson and G. F. Ross, “Measurement of the Intrinsic Properties of Materials by Time-Domain Techniques”, IEEE Transsactions on Instrumentation and Measurement, Vol. IM-19, No. 4, Noveniber 1970
[11]David M.Pozar, Microwave Engineering, Wiley
[12]https://www.cst.com/
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