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Ultrasensitive sensor design based on controlled crack formation : 제어된 기계적 파단을 이용한 초고감도 센서 제작
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 최만수 | - |
dc.contributor.author | 최용환 | - |
dc.date.accessioned | 2017-07-13T06:29:37Z | - |
dc.date.available | 2017-07-13T06:29:37Z | - |
dc.date.issued | 2017-02 | - |
dc.identifier.other | 000000141542 | - |
dc.identifier.uri | https://hdl.handle.net/10371/118597 | - |
dc.description | 학위논문 (박사)-- 서울대학교 대학원 : 기계항공공학부, 2017. 2. 최만수. | - |
dc.description.abstract | In this thesis, we describe crack sensor systems inspired by spiders slit organ. Firstly, we present a sensor based on the guided formation of straight mechanical cracks within a regular micro-scale pattern. The sensor is highly sensitive to pressure (sensitivity = ~ 1 × 105 at pressures of 8-9.5 kPa range) as well as strain (GF = ~ 2 × 106 at strains of 0-10% range). Secondly, we present crack sensor based on a cracked transparent epilayer, Indium-Tin Oxide (ITO), deposited on a transparent PET substrate, which exhibits ultra-high sensitivity to strain, (GF = ~ 4000 at 2% strain), to pressure (sensitivity = 1.91 kPa-1 at pressure from 30 to 70 kPa), and transparency (89% at wavelength of 560 nm). Theoretical description, durability and reproducibility have also been demonstrated for each case. | - |
dc.description.tableofcontents | Chapter 1. Introduction 1
Chapter 2. Pressure sensor based on guided straight crack 3 2-1. Objective 5 2-2. Fabrication method of guided straight crack sensor 5 2-3. Results of the guided crack strain sensor 9 2-4. Utilizing induced crack sensor for pressure sensing and result 27 2-5. Effect of crack geometry on sensor sensitivity 28 2-6. Theoretical analysis 38 2-7. Summary 50 Chapter 3. Transparent crack sensor 51 3-1. Objective 51 3-2. Fabrication method of transparent crack sensor 54 3-3. Results and theoretical analysis 65 3-4. Multi-pixel array of the transparent crack sensor 76 3-5. Motion detecting application of the crack sensor 88 3-6. Summary 93 References 94 국문초록 100 | - |
dc.format | application/pdf | - |
dc.format.extent | 1815666 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | 크랙 | - |
dc.subject | 스트레인 센서 | - |
dc.subject | 압력 센서 | - |
dc.subject.ddc | 621 | - |
dc.title | Ultrasensitive sensor design based on controlled crack formation | - |
dc.title.alternative | 제어된 기계적 파단을 이용한 초고감도 센서 제작 | - |
dc.type | Thesis | - |
dc.description.degree | Doctor | - |
dc.citation.pages | vi, 107 | - |
dc.contributor.affiliation | 공과대학 기계항공공학부 | - |
dc.date.awarded | 2017-02 | - |
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