Modeling and Characterization of Extensible Wearable Textile-Based Electrogoniometers
Modeling and Characterization of Extensible Wearable Textile-Based Electrogoniometers
复制标题
可扩展可穿戴纺织品电测角仪的建模和表征
作者：
F. Lorussi;Stefano Galatolo;R. Bartalesi;D. D. Rossi
通过可穿戴技术测量和监测与人体运动、姿势和手势有关的参数，由于其在日常生活条件下的广泛潜在应用而获得了动力。在以往的研究中，碳弹性体（CEs）已被用作应变传感器。CE传感器数学建模的最新进展表明，CE可以用作电测角计。证明了对于局部曲率较小的CE层，构成层的条带的电阻仅取决于同一层的总曲率，而不取决于传感器与表面粘附的特定形状。此外，理论和实验证明，双层结构相对于单层结构提供更好的精度。这些结果是在假设装置是弯曲的而不是伸展的情况下得到的。在本文中，我们用弹性绝缘层代替了传感器中不可扩展的绝缘层，使系统的长度得以扩展。这种改进需要进一步的研究，使其适合关节运动产生的上皮变形后的生物力学应用，并最大限度地减少皮肤运动伪影。
Measuring and monitoring through wearable technology parameters related to human movement, posture, and gesture are gaining momentum because of their wide range of potential applications in daily-life conditions. In previous studies, carbon elastomers (CEs) have been used as strain sensors. Recent developments of CE sensors mathematical modeling demonstrated that the CEs can be used as electrogoniometers. It was proved that for small local curvatures of CE layers, the resistance of a strip constituting a layer depends only on the total curvature of the same layer and not on the particular shape that the sensor keeps in adherence with a surface. Further, it was proved, theoretically and experimentally, that a double-layer configuration provides better accuracy with respect to a single-layer configuration. These results have been obtained under the hypothesis that the device was bent, but not extended. In this paper, we substituted the inextensible insulating layer in the sensors with an elastic one, allowing the system to extend its length. This improvement required further study to make it fit for biomechanical applications following epithelial deformations produced by joint movements and minimizes skin motion artifacts.