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Optical Fibers in the Design and Fabrication of Smart Garments – a Review

King Raji Rafiu, Qin Luo, Ning Li, Haijin Liu

Fibres & Textiles in Eastern Europe

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2022

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Vol. 30, no. 1 (151)

31--42

EN

Several publications and even commercial products showcasing the application of optical fibers for textile goods abound in literature. Optical fibers can be employed as sensors by making use of physical principles to sense strain, temperature, and other quantities by tailoring the fiber such that the quantity to be measured alters the intensity, phase, polarisation, and wavelength of light within the fiber. However, a paper directed at the development of textile based applications or smart garments using optical fibers is lacking. This review seeks to serve as apt reference material for the development of optical fiber based textile sensors or smart garments with a focus on the application of plastic optical fibers (POFs). Highlighted are the salient material properties of POFs and their importance in delivering satisfactory sensing results. Special treatment has also been given to their proposed feasibility for embedment within weft knitted structures.

2

Changes in the Characteristic Impedance of Textile Signal Lines While Mechanically Loaded

Leśnikowski Jacek, Kubiak Paweł

Autex Research Journal

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2019

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Vol. 19, no. 4

375--380

EN

The paper presents studies over the changes in the characteristic impedance of selected type of textile signal lines (TSLs) during mechanical loads. The article describes the construction of tested lines, the measurement method, and statistical analysis of the collected results.

3

New Kind of TextileTransmission Line with an Impedance of 50 Ohms

Leśnikowski J.

Fibres & Textiles in Eastern Europe

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2015

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Vol. 23, no. 2 (110)

51–-54

EN

The article describes a new kind of textile transmission line which might be widely used, among others, in smart clothing. This line consists of a textile substrate in the form of fabric, sewn with paths made from electrically conductive fabric. The arrangement of electrically conductive paths in the line proposed makes it easy to obtain the possibility of impedance changes in a wide range of its values (potentially giving the possibility to obtain an impedance equal to 50 Ω), regardless of the type of fabric used as a substrate. The paper presents examples of measurement results of characteristic impedance of the line affecting its transmission properties. It also presents an impact study of the type of stitches fastening electrically conductive paths and the inaccurate creation of the line on the value of the characteristic impedance. The studies presented are based on real measurements and computer simulation using CST Studio software.

PL

W artykule opisano nowy rodzaj tekstylnej linii transmisyjnej mogącej znaleźć szerokie zastosowanie w tekstronice. Linia ta składa się z tekstylnego podłoża, na które naszyto ścieżki wykonane z tkaniny elektroprzewodzącej. Rozmieszczenie ścieżek elektroprzewodzących w proponowanej linii umożliwia łatwe uzyskanie impedancji równej 50 Ω, niezależnie od rodzaju tkaniny użytej na jej podłoże. W artykule przedstawiono wyniki pomiarów impedancji mającej wpływ na właściwości transmisyjne linii. Przedstawiono badania wpływu sposobu przyszycia ścieżek elektroprzewodzących linii oraz błędów jej wykonania na wartość jej impedancji.