纺织学报 ›› 2019, Vol. 40 ›› Issue (07): 138-144.doi: 10.13475/j.fzxb.20180804107

• 服装工程 • 上一篇    下一篇

压力分布监测袜的制备及其传感性能

李思明, 吴官正, 胡雨洁, 方镁淇, 贺录祥, 贺燕, 肖学良()   

  1. 生态纺织教育部重点实验室(江南大学), 江苏 无锡 214122
  • 收稿日期:2018-08-14 修回日期:2019-04-13 出版日期:2019-07-15 发布日期:2019-07-25
  • 通讯作者: 肖学良
  • 作者简介:李思明(1995-),男,硕士生。主要研究方向为柔性压力传感纺织复合材料。
  • 基金资助:
    福建省新型功能性纺织纤维及材料重点实验室(闽江学院)开放基金资助项目(FKLTFM1706);江南大学大学生创新训练计划基金资助项目(1065210232184080);江南大学大学生创新训练计划基金资助项目(1066010242150460/022);盐城工业职业技术学院省级科研平台开放基金资助项目(YGKF-201712)

Preparation of pressure distribution monitoring socks and related sensing properties

LI Siming, WU Guanzheng, HU Yujie, FANG Meiqi, HE Luxiang, HE Yan, XIAO Xueliang()   

  1. Key Laboratory of Eco-Textiles(Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
  • Received:2018-08-14 Revised:2019-04-13 Online:2019-07-15 Published:2019-07-25
  • Contact: XIAO Xueliang

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摘要：

为探讨纬编针织柔性传感器的导电性能及其应用,以不锈钢颗粒质量分数为20%的粘胶导电纤维与锦纶,通过纬平针一体成型工艺,制备了含有3块压力传感模块及3条针织导线的一体成型压力分布监测袜。采用自行搭建的应力及电阻同步记录仪测试了袜子面内压力传感部位的电阻变化,并研究了该压力传感部位的应力与电阻的关系及反复压缩电阻的稳定性和可靠性。结果表明:不同压力传感部位的应力与电阻呈反比例关系;在应力增加的情况下,该针织压力传感器的电阻和灵敏度值均减小;在不同的应力循环中,传感器具有良好的曲线特征;在35 kPa应力循环下,传感器表现出良好的稳定性和重复性。

关键词: 压力发布监测袜, 柔性传感器, 传感性能, 智能纺织品

Abstract:

In order to investigate the electrical conductivity and application of the weft knitted flexible sensor, the viscose conductive fiber and nylon fiber with 20% stainless steel particle content were adopted to prepare one-piece pressure distribution monitoring socks comprising three integrated pressure sensing modules and three knitting wires. The resistance change of the pressure sensing part in the surface of the socks was tested by the self-built pressure and resistance synchronous recorder. The relationship between the stress and the resistance of the pressure sensing part and the stability and reliability of the repeated compression resistance were studied. The results show that the stress and resistance of different pressure sensing parts are inversely proportional. In the case of increased stress, the resistance and sensitivity values of the knitting pressure sensor are reduced. In different stress cycles, the sensor has good curve characteristics. The sensor exhibits good stability and repeatability under a stress cycle of 35 kPa.

Key words: pressure distribution monitoring socks, flexible transducer, sensing property, intelligent textiles

中图分类号: 

  • TS184.1

图1

导电纤维束及单根纤维截面的SEM照片"

图2

导电纤维元素分析的EDX图"

图3

基于纬平针工艺一体成型的压力分布监测袜"

图4

针织柔性压力传感织物的组织结构"

表1

压力袜不同传感部位的初始面电阻"

测量部位 面电阻/(MΩ·m-2)
部位1 10.8
部位2 2.5
部位3 10.2

图5

交织结构压力传感器压力下电阻变化的机制"

图6

压力袜不同传感部位的应力与电阻关系"

表2

不同部位传感器在不同应力下的灵敏度"

应力/kPa 灵敏度/kPa-1
部位1 部位2 部位3
0.0 0.192 0.198 0.177
3.3 0.119 0.134 0.124
6.6 0.031 0.043 0.051
9.9 0.019 0.011 0.021
13.2 0.018 0.006 0.008
16.5 0.009 0.004 0.003
33.0 0.001 0.001 0.001
49.5 0 0 0

图7

压力袜中压力传感模块的迟滞性曲线"

图8

压力袜中部位2处传感部位的性能测试结果"

表3

静态足底各部位瞬间压力"

脚底位置 压力/kPa
足眼 第1跖骨 第5跖骨
左脚 11 29 23
右脚 15 34 22

图9

压力分布监测袜中压力传感模块的行走电阻变化图"

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