Browse > Article
http://dx.doi.org/10.12772/TSE.2018.55.029

Investigation of Performance Change of Textile Keyboard due to the Dielectric Material and Electrode Characteristics  

Bang, Ju Yup (Department of Organic Material Science and Engineering, Pusan National University)
Lee, Hyo Jung (Department of Organic Material Science and Engineering, Pusan National University)
Choi, Sejin (Department of Organic Material Science and Engineering, Pusan National University)
Min, Moon Hong (Korea Dyeing and Finishing Technology Institute)
Lee, Chang Heon (Duckwoo Co., Ltd.)
Kim, Han Seong (Department of Organic Material Science and Engineering, Pusan National University)
Publication Information
Textile Science and Engineering / v.55, no.1, 2018 , pp. 29-34 More about this Journal
Abstract
In recent years, mobile devices have become indispensable devices for everyday life. However, the types and technologies of mobile devices that are soft and easy to carry are not sufficient. It is urgently necessary to develop and disseminate supplementary measures to improve their communication as part of securing the equal rights of disabled people to social members. In order to address the gap between disabled and non-disabled people in terms of utilization of information and communication technology and to improve the smart mobile usage environment, this study aimed to develop an alternative means. The Braille keyboard for the visually impaired developed in the fabric form exhibited a good signal-to-noise ratio value of 41.14 when a P40 insulation layer was inserted between two conductive layers. This is because there is a factor due to the difference in permittivity, and the change in the distance between the conductive layers due to the applied load is greatest.
Keywords
textile sensor; capacitance; permittivity; thickness; wearable device;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. Mattmann, O. Amft, H. Harms, G. Troster, and F. Clemens, "Recognizing Upper Body Postures Using Textile Strain Sensors", Wearable Computers 2007 11th IEEE International Symposium, pp.1-8, Boston, MA, 2007.
2 K. Cherenack, C. Zysset, T. Kinkeldei, and N. Munzenrieder, "Woven Electronic Fibers with Sensing and Display Functions for Smart Textiles", Adv. Mater., 2010, 22, 5178-5182.   DOI
3 O. Atalay, W. Richard, and M. Dawood Husain, "Textile-Based Weft Knitted Strain Sensors: Effect of Fabric Parameters on Sensor Properties", Sensors, 2013, 13, 11114-11127.   DOI
4 C. Pang, G. Y. Lee, T. Kim, S. M. Kim, H. N. Kim, and S. H. Ahn, "A Flexible and Highly Sensitive Strain-gauge Sensor Using Reversible Interlocking of Nanofibres", Nature Mater., 2012, 11, 795-801.   DOI
5 E. P. Scilingo, F. Lorussi, and A. Mazzold, "Strain-sensing Fabrics for Wearable Kinaesthetic-like Systems", Sensors, 2003, 3, 460-467.   DOI
6 P. Calvert, D. Duggal, P. Patra, and A. Agrawal, "Conducting Polymer and Conducting Composite Strain Sensors on Textiles", Molecular Crystal and Liquid Crystals, 2008, 484, 291-302.
7 M. Sergio, N. Manaresi, and M. Tartagni, "A Textile Based Capacitive Pressure Sensor", Sensors Lett., 2004, 2, 153-160.   DOI
8 R. Wijesiriwardana, K. Mitcham, and W. Hurley, "Capacitive Fiber-meshed Transducers for Touch and Proximity-sensing Applications", IEEE Sensors J., 2005, 5, 989-994.   DOI
9 H. K. Kim, S. Lee, and K. S. Yun, "Capacitive Tactile Sensor Array for Touch Screen Application", Sensors and Actuators A: Physical, 2011, 165, 2-7.   DOI
10 D. Cotton, I. M. Graz, and S. Lacour, "A Multifunctional Capacitive Sensor for Stretchable Electronic Skins", IEEE Sensors J., 2009, 9, 2008-2009.   DOI
11 M. Stoppa and A. Chiolerio, "Wearable Electronics and Smart Textiles: A Critical Review", Sensors, 2014, 14, 11957-11992.   DOI
12 C. Mattmann, F. Clemens, and G. Troster, "Sensor for Measuring Strain in Textile", Sensors, 2008, 8, 3719-3732.   DOI
13 T. Hoffmann, B. Eilebrecht, and S. Leonhardt, "Respiratory Monitoring System on the Basis of Capacitive Textile Force Sensors", IEEE Sensors J., 2011, 11, 1112-1119.   DOI
14 L. Castano and A. Flatau, "Smart Fabric Sensors and e-textile Technologies: A Review", Smart Mater. Struct., 2014, 23, 27-54.
15 T. Yamada, Y. Hayamizu, Y. Yamamoto, Y. Yomogida, A. Izadi- Najafabadi, D. Futaba, and K. Hata, "A Stretchable Carbon Nanotube Strain Sensor for Human-motion Detection", Nature Nanotechnol., 2011, 6, 296-301.   DOI