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Fiber-based Actuators with Low-working Temperature and Piezoresistive Self-sensing for Wearable Robotics
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Title
Fiber-based Actuators with Low-working Temperature and Piezoresistive Self-sensing for Wearable Robotics
DGIST Authors
Seungbeom NohJaehong LeeDongwon Yun
Advisor
이재홍
Co-Advisor(s)
Dongwon Yun
Issued Date
2023
Awarded Date
2023-08-01
Citation
Seungbeom Noh. (2023). Fiber-based Actuators with Low-working Temperature and Piezoresistive Self-sensing for Wearable Robotics. doi: 10.22677/THESIS.200000684682
Type
Thesis
Description
Twisted and coiled polymer actuator (TCA); Wearable robotics; Soft robotics; Strain sensor
Table Of Contents
Ⅰ. Introduction 1
1.1 Motivation of the research 1
1.1.1 Principle of thermal actuation 2
1.2 Aim of research 3
Ⅱ. Fabrication process of the AgNPs-based TCA 6
2.1 Non-conductive TCA 6
2.1.1 Optical images of fabrication process 8
2.2 Chemical reduction process 9
2.2.1 Image of the AgNPs-based TCA 9
2.2.2 In-situ chemical reduction cycle effect 10
Ⅲ. Electrothermal actuation of the AgNPs-based TCA 12
3.1 Characterization of electrothermal contraction and mechanical performance 12
3.1.1 Analytical model on the thermal response for the AgNPs-based TCA 18
3.1.2 Finite element analysis of the AgNPs-based TCA 24
Ⅳ. Self-resistance sensing of the AgNPs-based TCA 25
4.1 Resistive response of the AgNPs-based TCA in the stretchable sensor mode 25
4.2 Resistive response of the AgNPs-based TCA in the self-resistance sensing mode 28
Ⅴ. Self-sensing feedback control of the AgNPs-based TCA 29
5.1 Resistance feedback closed-loop of the AgNPs-based TCA 29
5.2 Demonstration of the resistance feedback closed-loop of the AgNPs-based TCA 31
Ⅵ. Wearable application of the AgNPs-based TCA 32
6.1 Structure of the wearable application 32
Ⅶ. Previous studies of the TCA 33
Ⅷ. Fabrication and measurement system of the AgNPs-based TCA 34
Ⅸ. Conclusion 35
URI
http://hdl.handle.net/20.500.11750/46428
http://dgist.dcollection.net/common/orgView/200000684682
DOI
10.22677/THESIS.200000684682
Degree
Master
Department
Department of Robotics and Mechatronics Engineering
Publisher
DGIST
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