Detail View

  Department of Robotics and Mechatronics Engineering Theses Master

Development of a Compact SAW Sensor System Employing Multiple Resonance Modes for Environmental Monitoring

Citations

WEB OF SCIENCE

Citations

SCOPUS

Metadata Downloads

XML
Excel
DC Field Value Language
dc.contributor.advisor 김회준 -
dc.contributor.author Mingyu Seo -
dc.date.accessioned 2026-01-23T10:55:18Z -
dc.date.available 2026-01-23T10:55:18Z -
dc.date.issued 2026 -
dc.identifier.uri https://scholar.dgist.ac.kr/handle/20.500.11750/59671 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000947176 -
dc.description Surface acoustic wave, SAW filter, SAW sensor system, Quartz, Lithium niobate, Finite element analysis, COMSOL -
dc.description.tableofcontents List of Contents
Abstract i
List of contents ii
List of tables iii
List of figures vi

Chapter 1. Introduction 1
1.1 Background and Motivation 1
1.2 Research Objective and Approach 2
1.3 Thesis Outline and Contributions 3

Chapter 2. High-Performance Dual-Mode SAW Sensor on X-Cut LiNbO3 for Real-Time Temperature and Humidity Sensing with Self-Decoupling Capability 4
2.1 Abstract 4
2.2 Introduction 5
2.3 Materials and Methods 7
2.3.1 Fabrication of the SAW resonator 7
2.3.2 Electrospray deposition and characterization of graphene oxide 7
2.3.3 Experimental setup 7
2.4 Results and Discussion 9
2.4.1 Characterization of Rayleigh and SH modes in X-cut LiNbO3 using FEA 10
2.4.2 Comparison of propagation behavior between two wave modes using FEA · 11
2.4.3 Characterization of fabricated SAW sensor 14
2.4.4 Comparative analysis of humidity sensing performance 17
2.4.5 Temperature sensing performance of Rayleigh and SH modes 20
2.4.6 Decoupling of temperature and humidity responses via dual resonance modes21
2.5 Conclusion 24

Chapter 3. Design of a Dual-Mode ST-Cut Quartz SAW Resonator with Integrated Oscillator Circuit for a Multi-Parameter Sensing System 25
3.1 Abstract 25
3.2 Introduction 26
3.3 Materials and Methods 28
3.3.1 Simulation of resonance mode on ST-cut quartz 28
3.3.2 Fabrication of two port SAW resonator 29
3.3.3 Design of a closed-loop oscillator circuit for test 29
3.4 Results and Discussion 31
3.4.1 Design parameter effect of two-port SAW resonator 31
3.4.2 Test and validation of SAW oscillator for sensing system 33
3.4.3 Design of a dual-mode SAW oscillator circuit 34
3.5 Conclusion and Future Work 35

Chapter 4. Conclusion and Future Work 36
4.1 Conclusion 36
4.2 Future work 37

References 38
요약문 42
Appendix: Fabrication Process of LiNbO3 and Quartz based Resonator 43		 -
dc.format.extent 43 -
dc.language eng -
dc.publisher DGIST -
dc.title Development of a Compact SAW Sensor System Employing Multiple Resonance Modes for Environmental Monitoring -
dc.title.alternative 복수의 공진 모드를 활용한 소형 SAW 센서 시스템의 개발 및 환경 모니터링 응용 -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200000947176 -
dc.description.degree Master -
dc.contributor.department Department of Robotics and Mechatronics Engineering -
dc.date.awarded 2026-02-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.RM 서38 202602 -
dc.date.accepted 2026-01-19 -
dc.contributor.alternativeDepartment 로봇및기계전자공학과 -
dc.subject.keyword Surface acoustic wave, SAW filter, SAW sensor system, Quartz, Lithium niobate, Finite element analysis, COMSOL -
dc.contributor.affiliatedAuthor Mingyu Seo -
dc.contributor.affiliatedAuthor Hoe Joon Kim -
dc.contributor.alternativeName 서민규 -
dc.contributor.alternativeName Hoe Joon Kim -
dc.rights.embargoReleaseDate 2027-02-28 -
Show Simple Item Record

File Downloads

  • There are no files associated with this item.

공유

qrcode
공유하기

Total Views & Downloads

???jsp.display-item.statistics.view???: , ???jsp.display-item.statistics.download???: