전도성 방적사 및 필라멘트사를 이용한 섬유형 전극 정전용량형 터치 센서의 성능 비교 연구 = Capacitive Touch Sensing Performance of Textile Electrodes Made of Conductive Spun Yarns and Filaments

다국어 초록 (Multilingual Abstract)

With the rapid growth of the Internet of things in the recent years, smart textile technologies have correspondingly attracted significant research attention in the industry. One important elementary technology being considered for smart textiles is a touch sensor input device to enable direct communication between users and other electronic devices. This study investigated the effect of the structural difference in conducting fibers on the sensing property of capacitive textile touch sensors. Conducting fibers made of stainless steel spun yarns and filaments used for electrodes presented different changes in electrical resistance with the application of tensile and compressive forces. It is believed that the different structures between spun yarns and filaments induced difference in the electric contact among their constituent fibers with the application of an external force. Moreover, the random deformation of staple fibers resulted in the unstable change of capacitance and large hysteresis, while a stable performance and low hysteresis was observed for textile sensors with filaments.

참고문헌 (Reference)

1 Y. H. Lee, "Wearable Textile Battery Rechargeable by Solar Energy" 13 : 5753-5761, 2013

2 N. Lopez-Ruiz, "Wearable System for Monitoring of Oxygen Concentration in Breath Based on Optical Sensor" 15 : 4039-4045, 2015

3 S. Sheykhi, "Toward Wearable Sensors : Optical Sensor for Detection of Ammonium Nitratebased Explosives, ANFO and ANNM" 53 : 5196-5199, 2017

4 O. Atalay, "Textile-Based Weft Knitted Strain Sensors : Effect of Fabric Parameters on Sensor Properties" 13 : 11114-11127, 2013

5 J. S. Roh, "Textile Touch Sensors for Wearable and Ubiquitous Interfaces" 84 : 739-750, 2014

6 H. H. Cheng, "Textile Electrodes Woven by Carbon Nanotube-graphene Hybrid Fibers for Flexible Electrochemical Capacitors" 5 : 3428-3434, 2013

7 R. F. Service, "Technology-Electronic Textiles Charge Ahead" 301 : 909-911, 2003

8 G. H. Yu, "Solution-Processed Graphene/MnO2 Nanostructured Textiles for High-Performance Electrochemical Capacitors" 11 : 2905-2911, 2011

9 K. Cherenack, "Smart Textiles : Challenges and Opportunities" 112 : 091301-, 2012

10 C. Mattmann, "Sensor for Measuring Strain in Textile" 8 : 3719-3732, 2008

11 T. M. Zhao, "Self-powered Wearable Sensing-textiles for Real-time Detecting Environmental Atmosphere and Body Motion Based on Surface-triboelectric Coupling Effect" 29 : 405504-, 2018

12 S. F. Zopf, "Screen-printed Military Textiles for Wearable Energy Storage" 11 : 1-8, 2016

13 O. Oess, "New Fibers in Textiles for Medical Purposes" 53 : 474-477, 2004

14 L. B. Hu, "Lithium-Ion Textile Batteries with Large Areal Mass Loading" 1 : 1012-1017, 2011

15 X. L. Fang, "High-Performance Wearable Strain Sensors Based on Fragmented Carbonized Melamine Sponges for Human Motion Detection" 9 : 17948-17956, 2017

16 D. Borro-Yaguez, "Handsfree Wearable System for Helping in Assembly Tasks in Aerospace" 86 : 328-335, 2011

17 H. Qu, "Flexible Fiber Batteries for Applications in Smart Textiles" 24 : 025012-, 2015

18 S. Takamatsu, "Fabric Touch Sensors Using Projected Self-Capacitive Touch Technique" 25 : 627-634, 2013

19 G. S. Taylor, "Evaluation of Wearable Simulation Interface for Military Training" 55 : 672-690, 2013

20 H. Wu, "Energy Harvesters for Wearable and Stretchable Electronics : From Flexibility to Stretchability" 28 : 9881-9919, 2016

21 M. A. R. Osman, "Embroidered Fully Textile Wearable Antenna for Medical Monitoring Applications" 117 : 321-337, 2011

22 X. H. Zhang, "Application of Knitting Structure Textiles in Medical Areas" 18 : 181-191, 2018

23 R. Sreelakshmy, "A Wearable Type Embroidered Logo Antenna at ISM Band for Military Applications" 59 : 2159-2163, 2017

24 E. Iranmanesh, "A Wearable Piezoelectric Energy Harvester Rectified by a Dual-Gate Thin-Film Transistor" 65 : 542-546, 2018