EIT-based fabric pressure sensing

A. Yao, Chuan Li Yang, J. K. Seo, Manuchehr Soleimani

Research output: Contribution to journalArticle

24 Citations (Scopus)
99 Downloads (Pure)

Abstract

This paper presents EIT-based fabric sensors that aim to provide a pressure mapping using the current carrying and voltage sensing electrodes attached to the boundary of the fabric patch. Pressure-induced shape change over the sensor area makes a change in the conductivity distribution which can be conveyed to the change of boundary current-voltage data. This boundary data is obtained through electrode measurements in EIT system. The corresponding inverse problem is to reconstruct the pressure and deformation map from the relationship between the applied current and the measured voltage on the fabric boundary. Taking advantage of EIT in providing dynamical images of conductivity changes due to pressure induced shape change, the pressure map can be estimated. In this paper, the EIT-based fabric sensor was presented for circular and rectangular sensor geometry. A stretch sensitive fabric was used in circular sensor with 16 electrodes and a pressure sensitive fabric was used in a rectangular sensor with 32 electrodes. A preliminary human test was carried out with the rectangular sensor for foot pressure mapping showing promising results.
Original languageEnglish
Article number405325
Number of pages9
JournalComputational and Mathematical Methods in Medicine
Volume2013
DOIs
Publication statusPublished - 2013

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Sensing
Pressure
Sensor
Sensors
Electrode
Electrodes
Voltage
Conductivity
Electric potential
Stretch
Inverse problems
Patch
Foot
Inverse Problem
Geometry

Cite this

EIT-based fabric pressure sensing. / Yao, A.; Yang, Chuan Li; Seo, J. K.; Soleimani, Manuchehr.

In: Computational and Mathematical Methods in Medicine, Vol. 2013, 405325, 2013.

Research output: Contribution to journalArticle

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