Tajin Abu Saleh, Levitt Ariana S, Liu Yuqiao, Amanatides Chelsea E, Schauer Caroline L, Dion Genevieve, Dandekar Kapil R
Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104 USA.
Materials Science and Engineering Department, Drexel University, Philadelphia, PA 19104 USA.
IEEE Antennas Wirel Propag Lett. 2020 Apr;19(4):542-546. doi: 10.1109/lawp.2020.2971189. Epub 2020 Feb 3.
Researchers are looking for new methods to integrate sensing capabilities into textiles while maintaining the durability, flexibility, and comfort of the garment. One method for imparting sensing capabilities into garments is through coupling conductive yarns with the radio frequency identification (RFID) technology. These smart devices have exhibited promising results for short-term use. However, long-term studies of their performance are still needed to evaluate their performance over a longer period. Like all garments, wearable sensors are susceptible to environmental factors during use. These factors can lead to dielectric coupling and corrosion of conductive yarns, which has the potential to degrade the performance of the device. This letter analyzes the effect of sweat and moisture on silver-coated nylon yarn by extracting the sheet resistance at 913 MHz from transmission line measurements. HFSS simulation shows the level of perturbation in antenna performance as sheet resistance increased with each cycle of sweat-immersion, washing, and drying.
研究人员正在寻找新方法，以便在保持服装耐用性、柔韧性和舒适性的同时，将传感功能集成到纺织品中。一种将传感功能赋予服装的方法是将导电纱线与射频识别（RFID）技术相结合。这些智能设备在短期使用中已展现出令人期待的结果。然而，仍需要对其性能进行长期研究，以评估它们在更长时间段内的表现。与所有服装一样，可穿戴传感器在使用过程中易受环境因素影响。这些因素可能导致导电纱线的介电耦合和腐蚀，这有可能使设备性能下降。本文通过传输线测量提取913 MHz时的薄层电阻，分析了汗液和湿气对镀银尼龙纱线的影响。高频结构仿真软件（HFSS）模拟显示，随着每次汗液浸泡、洗涤和干燥循环导致薄层电阻增加，天线性能的扰动程度。
