Mathematical model of conductive fabric-based flexible pressure sensor

Michel Chipot, Kyounghun Lee, Jin Keun Seo

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1 Citation (Scopus)

Abstract

This paper proposes a mathematical model of a pressure-sensitive conductive fabric sensor, which adopts the technique of electrical impedance tomography (EIT) with a composite fabric being capable of changing its effective electrical property due to an applied pressure. We model the composite fabric from an electrically conductive yarn and a sponge-like non-conductive fabric with high pore density, and the conductive yarn is woven in a wavy pattern to possess a pressure-sensitive conductive property, in the sense of homogenization theory. We use a simplified version of EIT technique to image the pressure distribution associated with the conductivity perturbation. A mathematical ground for the effective conductivity in one-direction is provided. We conduct an experiment to test the feasibility of the proposed pressure sensor.

Original languageEnglish
Pages (from-to)775-786
Number of pages12
JournalApplied Mathematical Modelling
Volume48
DOIs
Publication statusPublished - 2017 Aug 1

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All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Applied Mathematics

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