Effect of Cyclical Bending and Rubbing on the Characteristic Impedance of Textile Signal Lines.

Jacek Leśnikowski

doi:10.3390/ma14206013

Abstract

This article presents the results of tests on the resistance of new textile signal lines to bending and abrasion. The textile signal lines are one of the most important parts of the electronic system incorporated into modern smart garments. The main application of the lines presented in this article is the transmission of digital signals or high-frequency analogue signals. The tested lines were made of fabrics with sewn paths made of electro-conductive fabric. The construction of a measuring stand for testing the electric properties of textile transmission lines is shown. This article presents the effects of bending and abrasion on the resistance of electro-conductive strips, which are one of the elements of textile signal lines. The article also presents the effects of bending and abrasion on the characteristic impedance of constructed textile signal lines. Statistical analysis of the obtained results is also presented.

Highlights

The textile signal lines are one of the more important parts of the electronic system implemented in “e-textiles”
Materials and Forthe thetests, tests,textile textile lines were made by sewing electro-conductive
Plots of the average relative resistance of the electro-conductive strips made from Ponge and Laird fabric versus bending cycles are shown in Figures 8 and 9, respectively

Summary

Introduction

The textile signal lines are one of the more important parts of the electronic system implemented in “e-textiles”. The term “e-textiles” refers to common textiles with extended functionality This extended functionality can be obtained, among other ways, by placing electronic circuits in the textiles. For proper operation of such systems, each of its modules should be electrically connected to the other These connections can be made with conventional or textile cables. The main disadvantage of using conventional cables is their high stiffness, increasing their perceptibility by the user of “e-textiles”. This significantly reduces the ergonomics of using such products.

Methods

Results

Conclusion