An investigation into the fabrication parameters of screen-printed capacitive sensors on e-textiles
| Autor: | Jorge Moreno, Eduardo Garcia-Breijo, Raúl Llinares Llopis, José Vicente Lidón-Roger, Josue Ferri |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Fabrication
E-textiles Textile Materials science Polymers and Plastics Capacitive sensing Capacitive sensors Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology 01 natural sciences Capacitance law.invention TECNOLOGIA ELECTRONICA Hardware_GENERAL law TEORIA DE LA SEÑAL Y COMUNICACIONES Hardware_INTEGRATEDCIRCUITS Chemical Engineering (miscellaneous) Printed electronic Screen-printing business.industry Wearables 010401 analytical chemistry Electrical engineering 021001 nanoscience & nanotechnology Touchpad 0104 chemical sciences Capacitor Screen printing 0210 nano-technology business |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| Popis: | [EN] The design and development of textile-based capacitive sensors requires the implementation of textile capacitors with a determined capacitance. One of the main techniques to obtain these sensors is the screen-printing of conductive and dielectric inks on textiles. This paper investigates the fabrication parameters that have the most influence when designing and implementing a screen-printed capacitive sensor. In this work, a textile has been used directly as the dielectric part, influencing sensitively the value of the permittivity and the thickness of the dielectric of the capacitor. These are two fundamental parameters for the estimation of its capacitance. The choice of the conductive ink, its viscosity and solid content, as well as printing parameters, such as printing direction, also impact on the manner for obtaining the electrodes of the capacitive sensor. Although the resulting electrodes do not represent an important parameter for the estimation of the capacitance, it determines the selection of fabrics that can be printed. As a result of the investigation, the paper provides a guideline to choose the materials, such as fabrics or inks, as well as the printing parameters, to implement e-textile applications based on projected capacitive technologies. The experiments carried out on different fabrics and inks have provided results with capacities of less than 60 pF, the limit where the sensors based on capacitive technologies are located. The authors disclosed receipt of the following financial support for the research, authorship and/or publication of this article: This work was supported by the Conselleria d'Economia Sostenible, Sectors Productius i Treball, through IVACE (Instituto Valenciano de Competitividad Empresarial) and cofounded by ERDF funding from the European Union (Application no. IMAMCI/2019/1). This work was also supported by the Spanish Government/FEDER funds (RTI2018-100910-B-C43) (MINECO/FEDER). |
| Databáze: | OpenAIRE |
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