嵌花添纱针织应变传感器的制备与性能  

Preparation and Properties of Intarsia-Plated Knitting Strain Sensor

作　　者：张钰晶 龙海如 ZHANG Yujing;LONG Hairu(College of Textiles,Ministry of Education,Donghua University,Shanghai 201620,China;Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学纺织学院,上海201620 [2]东华大学纺织面料技术教育部重点实验室,上海201620

出　　处：《东华大学学报（自然科学版）》2020年第6期889-895,共7页Journal of Donghua University(Natural Science)

摘　　要：与现有的提花添纱针织应变传感器的制备与电压加载方式不同,本文自主设计并在电脑横机上制备了一种基于嵌花添纱结构的新型针织应变传感器,其添纱结构可通过双导纱器编织实现。测试了16种不同导电线圈横列数与纵行数的传感器试样的静态松弛电阻及不同拉伸方向的力电性能。试验结果表明:该传感器在使用中需以纵行方向为应变主轴,且在此情形下可通过增加导电线圈横列数并减小纵行数的方式来提高传感器的灵敏性。含有最多导电线圈横列数和最少导电线圈纵行数的传感器试样呈现出最优异的性能,且在不同最大应变下的重现性良好。嵌花添纱针织应变传感器的可测最大应变为88.03%,灵敏系数范围为2.48~182.07,均高于提花添纱针织应变传感器。Differing from the preparation and voltage loading method of the existing jacquard-plated knitting strain sensor,a new type of knitting strain sensor based on the intarsia-plated structure was designed and prepared on a computerized flat knitting machine,and the plating structure can be made by knitting with double yarn guides.Sensor samples of sixteen specifications with different combinations of the number of conductive loop courses and wales were tested for their static relaxation resistances and the mechanical-electrical properties under different tensile directions.The experimental results indicate that the wale direction should be used as the strain axis of the sensor,and the sensitivity of the sensor can be improved by increasing the conductive course number and reducing the conductive wale number.The sensor sample with the most conductive loop courses and the least conductive loop wales shows the best performance,and has good reproducibility under different maximum strains.In addition,its measurable maximum strain is 88.03%and the gauge factor ranges from 2.48 to 182.07,both are higher than those of the jacquard-plated knitting strain sensor.

关 键 词：针织应变传感器 嵌花添纱工艺 灵敏系数 重现性 

分 类 号：TS181.8[轻工技术与工程—纺织材料与纺织品设计]