Nowadays, with the advancement of technology, researchers are looking for ways to design smart devices and tools to help people in the fields of engineering, medicine, sports and health. According to the developments made in the field of smart textiles, the required tools and devices for the permanent monitoring of people's health can be designed and used using textile-based sensors in a way that brings comfort to the person in long time application. In this research, textile-based multicomponent sensors to measure the amount of sweating and textile-based ECG electrodes were also to record heart signals were designed and produced. Braiding technique was used to produce textile-based sensors. Moreover, the sensors were produced by using conductive and viscose yarns. The structure of sensor was optimized based on production and structural parameters i.e., braiding density, number of conductive threads, and the conductivity of conductive yarns. The textile-based ECG electrodes were produced using two kinds of conductive yarns and their performance was eva‎luated based on impedance method. The performance of textile-based sensor and electrodes were eva‎luated in purpose-designated sport activities by 6 persons. Also, in order to investigate the effect of the structural parameters of cotton woven fabrics on the thermal comfort, 5 samples with 3 weave patterns, and 3 weft density were produced. Effect of structural parameters of woven fabrics on heart rate and amount of sweat were eva‎luated by 3 persons in specific sport activities. The results showed that the woven fabric sample with Twill design and 29 weft density, for example, for participant 3, led to an increase in heart rate up to 51% and an increase in sweating with a steep slope and an initial resistance value of 331 MΩ. which shows the greatest amount of changes. The lowest heart rate is related to the Twill sample with a density of 21, which is up to 27% and shows changes in sweating with a gentle slope in each stage. The results revealed that there is correlation between physical properties of woven fabrics such as air permeability and water vapor permeability, and heart rate and sweat amount of persons during sport activities.

محسن شنبه , عبدالكريم حسيني

افسانه ولي پوري , فاطمه حقيقت