Abstract
By introducing a percentage of conductive material during the manufacture ofsewing thread, it is possible to obtain a fabric which is able to detect variations in pressurein certain areas. In previous experiments the existence of resistance variations has beendemonstrated, although some constrains of cause and effect were found in the fabric. Theresearch has been concentrated in obtaining a fabric that allows electronic detection of itsshape changes. Additionally, and because a causal behavior is needed, it is necessary thatthe fabric recovers its original shape when the external forces cease. The structure of thefabric varies with the type of deformation applied. Two kinds of deformation aredescribed: those caused by stretching and those caused by pressure. This last type ofdeformation gives different responses depending on the conductivity of the object used tocause the pressure. This effect is related to the type of thread used to manufacture thefabric. So, if the pressure is caused by a finger the response is different compared to theresponse caused by a conductive object. Another fact that has to be mentioned is that apressure in a specific point of the fabric can affect other detection points depending on theforce applied. This effect is related to the fabric structure. The goals of this article arevalidating the structure of the fabric used, as well as the study of the two types ofdeformation mentioned before.
Highlights
Intelligent textiles, known as smart fabrics, electronic textiles, or e-textiles, have attracted considerable attentions worldwide due to their potential to bring revolutionary impacts on human life.Nowadays the major part of the research efforts in this topic is centered in finding the way to integrate textile and electronics
Two kinds of deformation are described: those caused by stretching and those caused by pressure
The time taken for the fabric to stabilize itself to the new tension level is a maximum of 250ms which enables the rapid detection of the pressure
Summary
Intelligent textiles, known as smart fabrics, electronic textiles, or e-textiles, have attracted considerable attentions worldwide due to their potential to bring revolutionary impacts on human life.Nowadays the major part of the research efforts in this topic is centered in finding the way to integrate textile and electronics. The goal is finding how to achieve natural interaction with people wearing the textile. This interaction could be achieved, for example, using the wave as interface for controlling the most common gadgets [1,2,3,4]. From this point of view, it could be possible to integrate touch pads onto jackets to control MP3 players. One way to achieve this objective is to improve the wave and the electronic system to integrate them. While integrated in the fabric, these electronic devices act as sensors and/or data loggers
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