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首页> 外文期刊>Journal of fiber bioengineering and informatics >Piezoelectric Polymer and Piezocapacitive Nanoweb Based Sensors for Monitoring Vital Signals and Energy Expenditure in Smart Textiles
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Piezoelectric Polymer and Piezocapacitive Nanoweb Based Sensors for Monitoring Vital Signals and Energy Expenditure in Smart Textiles

机译：基于压电聚合物和压电电容性纳米网的传感器，用于监测智能纺织品中的生命信号和能量消耗

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"Smart textiles", also known as electronic or e-textiles contain embedded sensors capable of monitoring vital signals such as ECG, EMG, respiratory behaviour and are usually fabricated using rigid semiconductors. In this study, we developed a flexible Physiological Sensing Belt (PSB) by embedding silicone rubber/carbon black/conductive carbon layer coated Polyvinylidene Fluoride (PVDF) film between the elastic textile bands for monitoring respiration and the movement of thigh muscles. With an average peak-to-peak interval of 3 sec, the respiration rate could be evaluated to be 20 min~(-1). We also developed a novel hybrid sensor using PVDF and Thermoplastic Polyurethane (TPU) electrospun nanofiber webs stacked on each other and capable of measuring both static and dynamic pressure simultaneously within all frequency ranges. Based on the samples used, we were able to measure the walking speed of the subject at 4, 336 steps/h and 0.693 m/step at the speed of 3 km/h and with 6, 656 steps/h and 0.751 m/step at the speed of 5 km/h. Overall, when compared to the existing commercially available pressure sensors, the PVDF and TPU nanofiber web based hybrid sensor developed in our study has advantages of high sensitivity, nanoscale thickness, lower hysteresis curve in pressure-capacitance, and can be easily converged with any fabric or textiles.
机译：“智能纺织品”（也称为电子或电子纺织品）包含嵌入式传感器，能够监视重要信号，例如ECG，EMG，呼吸行为，并且通常使用刚性半导体制造。在这项研究中，我们通过在弹性纺织带之间嵌入硅橡胶/炭黑/导电碳层涂覆的聚偏二氟乙烯（PVDF）膜来开发柔性生理传感带（PSB），以监测呼吸和大腿肌肉的运动。平均峰峰间隔为3秒，呼吸速率可评估为20 min〜（-1）。我们还开发了一种新颖的混合传感器，该传感器使用PVDF和热塑性聚氨酯（TPU）电纺纳米纤维网彼此堆叠，并能够在所有频率范围内同时测量静态和动态压力。基于所使用的样本，我们能够以3 km / h的速度以及6,656步/小时和0.751 m /步的速度测量对象在4,336步/小时和0.693 m /步的步行速度。时速为5 km / h总体而言，与现有的市售压力传感器相比，我们研究中开发的基于PVDF和TPU纳米纤维网的混合传感器具有高灵敏度，纳米级厚度，较低的压力电容滞后曲线等优点，并且可以轻松与任何织物融合或纺织品。

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