Electro-mechanical properties of knitted fabric made from conductive multi-filament yarn under unidirectional extension
Electro-mechanical properties of knitted fabric made from conductive multi-filament yarn under unidirectional extension
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DOI：
10.1177/0040517505056870
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发表时间：
2005-08-01
影响因子：
2.3
通讯作者：
Yu, TX
中科院分区：
文献类型：
--
作者：
Zhang, H;Tao, XM;Yu, TX
本文提出了一种本征导电不锈钢复丝针织物在单轴大变形下机电性能的理论模型。研究了织物在单轴拉伸下的载荷与电阻之间的关系。提出了一种基于环路结构和织物结构的电路网络。通过求解网络的电路方程，得到了织物的等效电阻。为了简化重叠纱线接触力的计算，采用二维六边形模型来表示线圈的形状。采用图像采集系统记录拉伸过程中线圈形态的图像，得到线圈形态与织物载荷之间的关系。通过理论分析和实验研究发现，织物中重叠纱线的接触电阻是决定传感器灵敏度的关键因素。此外，决定电路网络结构的织物结构也是影响织物传感器特性的重要因素。
A theoretical model for electro-mechanical properties of intrinsically conductive knitted fabrics made from stainless steel multi-filament yams under large uniaxial deformation is presented. The investigations are focused on the relationship between the load and electrical resistance of the fabric under uniaxial extension. A circuit network is proposed based on the loops configuration and fabric structure. The equivalent resistance of the fabric is obtained by solving the circuit equations of the network. In order to simplify the calculation of the contacting forces on the overlapped yarns, a two-dimensional hexagon model is used to represent the loop configurations. An image-capturing system is employed to record the images of the loop configurations during the extension process and the relationship between the configurations of the loops and the load imposed on the fabric is obtained. From the theoretical analysis and experimental investigations, it is found that the contacting resistance of the overlapped yarns in the fabric is the key factor that governs the sensitivity of the fabric sensor. In addition, the fabric structure that determines the structure of the circuit network is also an important factor affecting the characteristics of the fabric sensor.