Fiber based Fabric Sensors

提案1509043提案标题：基于纤维的织物传感器项目目标：该提案旨在开发计算模型支持的台式和可穿戴阻抗表征工具，以研究用于生物医学监测的机织织物结构中共挤多组分纤维的传感能力。a)非技术摘要：美国纺织业只有采用先进材料用于新兴智能纺织品的技术才能保持竞争力。提出了一种新的方法，在分子、纤维、纱线或织物的一个或多个层次上将电子传感功能设计到纺织品中。机织隔行扫描消除了对传统光刻的需要，传统光刻既不能扩展到大范围，也不能与纺织制造兼容。因此，提出了一种从根本上平移和变革性的制造方法，以满足大量的生物医学传感需求，其中潜在地消除了传统的基于半导体和基于洁净室的传感器中基片尺寸的限制，并为超大面积柔性传感器系统的低成本卷曲加工开辟了非常有吸引力的可能性。除了对经济和医疗保健的影响外，该项目还将用于为高中生和大学生设计动手模块，特别是来自代表性较低的少数族裔社区的学生，以及他们的教育工作者，通过(I)学习纤维基活性感官纺织品制造和测试中使用的尖端方法，以及(Ii)开发设计和解决问题的技能，以生成和分析本文所述的感官反应，从而吸引人们对可穿戴电子纺织品系统的关注。这些学生将准备领导新的研究，以推动电子纺织品的商业发展，随着商品纺织品越来越多地在海外生产，电子纺织品有望带来亟需的经济和就业利益。b)技术摘要：电子纺织品最近吸引了相当大的科学和商业兴趣。虽然最初的努力是针对可穿戴计算应用，但最近的重点是传感器的集成。一种实用、有效和不显眼的方法是在纤维层面引入所需的电特性，在那里可以使用与纺织品兼容的工艺。为了实现基于纺织品的传感，在该项目下，将研究在纤维横截面结构中使用高度有序的导电和绝缘材料段。电子传感能力的不引人注意的集成，同时保留所有想要的？纺织品？质量要求对纺织结构的层次性质及其独特的组装方法有基本的电气和机械方面的了解。特别是，将探索使用从商用热塑性聚氨酯弹性体挤出的多组分纤维作为基础聚合物，在各种机械和流变性组合中使用。所提出的制造、熔融挤出和织造方法的可控性使得共挤出多组分纤维能够容易地适应基于协调纤维的有源感官纺织品的健康监测系统的一般开发

Proposal 1509043Proposal Title: Fiber based Fabric SensorsProject Goals:This proposal aims to develop computational model supported benchtop and wearable impedance characterization tools to investigate sensory capabilities of co-extruded multicomponent fibers in a woven fabric structure for biomedical monitoring applications.a) Nontechnical Abstract:The U.S. textiles industry can only remain competitive by engaging in technologies that employ advanced materials for emerging smart textiles. A novel method was proposed to engineer electronic sensing functionalities into textiles at one or more of the hierarchical levels of molecules, fibers, yarns, or fabrics. The woven interlacement eliminates the need for conventional lithography, which is neither scalable to large areas nor compatible with textile manufacturing. Therefore, a fundamentally translational and transformative manufacturing method was proposed for numerous biomedical sensing needs where the limitations imposed by substrate size for processing in conventional semiconductor- and cleanroom-based sensors are potentially obviated and a very attractive possibility of low cost roll-to-roll processing of very large-area flexible sensor systems open up. Beyond its impact on economy and healthcare, the project will be used to design hands on modules for high school and college students, especially from underrepresented minority communities, and their educators to attract attention to wearable electronic textile systems by (i) learning cutting-edge methods used in fabrication and testing of Fiber-based Active Sensory Textiles, and (ii) developing design and problem-solving skills to generate and analyze the sensory response described herein. These students will be prepared to lead new research to drive the commercial development of electronic textiles, which promise much-needed economic and employment benefits as commodity textiles are increasingly manufactured off-shore.b) Technical Abstract:Electronic textiles have attracted considerable scientific and commercial interest recently. While initial efforts were targeting wearable computing applications, the recent focus has been towards integration of sensing. A practical, effective, and inconspicuous means to introduce desired electrical characteristics is at the fiber level, where processes that are compatible to textiles could be used. To enable textile based sensing, under this project, the use of highly ordered segments of conducting and insulating materials in the fiber cross-sectional structure will be investigated. The unobtrusive integration of electronic sensing capabilities while preserving all desirable ?textile? qualities requires fundamental electrical and mechanical understanding of the hierarchical nature of textile structures and their unique methods of assembly. In particular, the use of multicomponent fibers extruded from commercially available thermoplastic polyurethane elastomers will be explored in a wide variety of mechanical and rheological property combinations as the base polymer. The controllability of the proposed methods of fabrication, melt extrusion and weaving enables the readily adaptation and testing of co-extruded multicomponent fibers to the general development of conformable Fiber-based Active Sensory Textiles based health-monitoring systems