Electrical impedance spectroscopy for electro-mechanical characterization of conductive fabrics

Tushar Kanti Bera, Youssoufa Mohamadou, Kyounghun Lee, Hun Wi, Tong In Oh, Eung Je Woo, Manuchehr Soleimani, Jin Keun Seo

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)9738-9754
Number of pages17
JournalSensors (Switzerland)
Volume14
Issue number6
DOIs
Publication statusPublished - 2014 Jun 2

Fingerprint

Dielectric Spectroscopy
Acoustic impedance
electrical impedance
Electric Impedance
Spectroscopy
spectroscopy
Pressure
Pressure sensors
impedance
pressure sensors
Compaction
weaving
yarns
Yarn
Electric properties
electrical properties

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Bera, Tushar Kanti ; Mohamadou, Youssoufa ; Lee, Kyounghun ; Wi, Hun ; Oh, Tong In ; Woo, Eung Je ; Soleimani, Manuchehr ; Seo, Jin Keun. / Electrical impedance spectroscopy for electro-mechanical characterization of conductive fabrics. In: Sensors (Switzerland). 2014 ; Vol. 14, No. 6. pp. 9738-9754.
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Bera, TK, Mohamadou, Y, Lee, K, Wi, H, Oh, TI, Woo, EJ, Soleimani, M & Seo, JK 2014, 'Electrical impedance spectroscopy for electro-mechanical characterization of conductive fabrics', Sensors (Switzerland), vol. 14, no. 6, pp. 9738-9754. https://doi.org/10.3390/s140609738

Electrical impedance spectroscopy for electro-mechanical characterization of conductive fabrics. / Bera, Tushar Kanti; Mohamadou, Youssoufa; Lee, Kyounghun; Wi, Hun; Oh, Tong In; Woo, Eung Je; Soleimani, Manuchehr; Seo, Jin Keun.

In: Sensors (Switzerland), Vol. 14, No. 6, 02.06.2014, p. 9738-9754.

Research output: Contribution to journalArticle

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