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Pressure Sensing Fabric

Published online by Cambridge University Press:  01 February 2011

Zhang Hui ,
Tao Xiao Ming ,
Yu Tong Xi  and
Li Xin Sheng
Zhang Hui
Affiliation:
tczhhui@inet.polyu.edu.hk, ITC, Institute of Textiles and Clothing, General Office,ITC,The Hong Kong Polytechnic University, Hong Kong, None, None, Hong Kong
Tao Xiao Ming
Affiliation:
tctaoxm@inet.polyu.edu.hk, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, N/A, N/A, China, People's Republic of
Yu Tong Xi
Affiliation:
metxyu@ust.hk, Department of Mechanical Engineering, Hong Kong University of Science and Technology, Hong Kong, N/A, N/A, China, People's Republic of
Li Xin Sheng
Affiliation:
lixs@inet.polyu.edu.hk, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, N/A, N/A, China, People's Republic of
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Abstract

This paper presents an approach for decoding the pressure information exerted over a piece of fabric by means of resistive sensing. The proposed sensor includes a distributed resistive grids constructed by two systems of orthogonally contacted electrical conductive yarns, with no external sensing element to be attached on the fabric. Since the conductive yarns serve as the sensing and wiring elements simultaneously, this design simplifies the fabrication process, reduces the cost and makes the production of large area flexible pressure sensor possible. The location of the pressure applied on the fabric can be identified by detecting the position where the change of the resistances occurs between two embroidered yarns. Meanwhile, the magnitude of the pressure can be acquired by measuring the variations of the resistance. In order to eliminate the “crosstalk” effect between adjoining fibers, the yarns were separately wired on the fabric surface.

Keywords

sensorelectrical propertiesstructural
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 920: Symposium S – Smart Nanotextiles , 2006 , 0920-S05-05
Copyright
Copyright © Materials Research Society 2006

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References

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