Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics
When we use a conductive fabric as a pressure sensor, it is necessary to quantitatively understand its electromechanical property related with the applied pressure. We investigated electromechanical properties of three different conductive fabrics using the electrical impedance spectroscopy (EIS). W...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2014-06-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/14/6/9738 |
| _version_ | 1818040980978270208 |
|---|---|
| author | Tushar Kanti Bera Youssoufa Mohamadou Kyounghun Lee Hun Wi Tong In Oh Eung Je Woo Manuchehr Soleimani Jin Keun Seo |
| author_facet | Tushar Kanti Bera Youssoufa Mohamadou Kyounghun Lee Hun Wi Tong In Oh Eung Je Woo Manuchehr Soleimani Jin Keun Seo |
| author_sort | Tushar Kanti Bera |
| collection | DOAJ |
| description | When we use a conductive fabric as a pressure sensor, it is necessary to quantitatively understand its electromechanical property related with the applied pressure. We investigated electromechanical properties of three different conductive fabrics using the electrical impedance spectroscopy (EIS). We found that their electrical impedance spectra depend not only on the electrical properties of the conductive yarns, but also on their weaving structures. When we apply a mechanical tension or compression, there occur structural deformations in the conductive fabrics altering their apparent electrical impedance spectra. For a stretchable conductive fabric, the impedance magnitude increased or decreased under tension or compression, respectively. For an almost non-stretchable conductive fabric, both tension and compression resulted in decreased impedance values since the applied tension failed to elongate the fabric. To measure both tension and compression separately, it is desirable to use a stretchable conductive fabric. For any conductive fabric chosen as a pressure-sensing material, its resistivity under no loading conditions must be carefully chosen since it determines a measurable range of the impedance values subject to different amounts of loadings. We suggest the EIS method to characterize the electromechanical property of a conductive fabric in designing a thin and flexible fabric pressure sensor. |
| first_indexed | 2024-12-10T08:23:09Z |
| format | Article |
| id | doaj.art-0a74af5071ad4c43aaad14dc25291bf0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T08:23:09Z |
| publishDate | 2014-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-0a74af5071ad4c43aaad14dc25291bf02022-12-22T01:56:18ZengMDPI AGSensors1424-82202014-06-011469738975410.3390/s140609738s140609738Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive FabricsTushar Kanti Bera0Youssoufa Mohamadou1Kyounghun Lee2Hun Wi3Tong In Oh4Eung Je Woo5Manuchehr Soleimani6Jin Keun Seo7Department of Computational Science and Engineering, Yonsei University, Seoul 120-749, KoreaDepartment of Biomedical Engineering, Kyung Hee University, Yongin 446-701, KoreaDepartment of Computational Science and Engineering, Yonsei University, Seoul 120-749, KoreaDepartment of Biomedical Engineering, Kyung Hee University, Yongin 446-701, KoreaDepartment of Biomedical Engineering, Kyung Hee University, Yongin 446-701, KoreaDepartment of Biomedical Engineering, Kyung Hee University, Yongin 446-701, KoreaDepartment of Electronic and Electrical Engineering, University of Bath, Bath BA2 7AY, UKDepartment of Computational Science and Engineering, Yonsei University, Seoul 120-749, KoreaWhen we use a conductive fabric as a pressure sensor, it is necessary to quantitatively understand its electromechanical property related with the applied pressure. We investigated electromechanical properties of three different conductive fabrics using the electrical impedance spectroscopy (EIS). We found that their electrical impedance spectra depend not only on the electrical properties of the conductive yarns, but also on their weaving structures. When we apply a mechanical tension or compression, there occur structural deformations in the conductive fabrics altering their apparent electrical impedance spectra. For a stretchable conductive fabric, the impedance magnitude increased or decreased under tension or compression, respectively. For an almost non-stretchable conductive fabric, both tension and compression resulted in decreased impedance values since the applied tension failed to elongate the fabric. To measure both tension and compression separately, it is desirable to use a stretchable conductive fabric. For any conductive fabric chosen as a pressure-sensing material, its resistivity under no loading conditions must be carefully chosen since it determines a measurable range of the impedance values subject to different amounts of loadings. We suggest the EIS method to characterize the electromechanical property of a conductive fabric in designing a thin and flexible fabric pressure sensor.http://www.mdpi.com/1424-8220/14/6/9738electrical impedance spectroscopy (EIS)conductive fabrictensioncompressionelectromechanical property |
| spellingShingle | Tushar Kanti Bera Youssoufa Mohamadou Kyounghun Lee Hun Wi Tong In Oh Eung Je Woo Manuchehr Soleimani Jin Keun Seo Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics Sensors electrical impedance spectroscopy (EIS) conductive fabric tension compression electromechanical property |
| title | Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics |
| title_full | Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics |
| title_fullStr | Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics |
| title_full_unstemmed | Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics |
| title_short | Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics |
| title_sort | electrical impedance spectroscopy for electro mechanical characterization of conductive fabrics |
| topic | electrical impedance spectroscopy (EIS) conductive fabric tension compression electromechanical property |
| url | http://www.mdpi.com/1424-8220/14/6/9738 |
| work_keys_str_mv | AT tusharkantibera electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics AT youssoufamohamadou electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics AT kyounghunlee electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics AT hunwi electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics AT tonginoh electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics AT eungjewoo electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics AT manuchehrsoleimani electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics AT jinkeunseo electricalimpedancespectroscopyforelectromechanicalcharacterizationofconductivefabrics |