一种柔性织物应变传感器的粘弹性建模研究  

Research on viscoelastic modeling of a flexible fabric strain sensor

作　　者：丁浩[1,2] 刘显华 王玺 白云峰 朱世根[1,2] DING Hao;LIU Xianhua;WANG Xi;BAI Yunfeng;ZHU Shigen(College of Mechanical Engineering,Donghua University,Shanghai 201620,China;Engineering Research Center of Textile Equipment,Ministry of Education,Donghua University,Shanghai 201620,China;College of Information Science and Technology,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学机械工程学院,上海201620 [2]东华大学纺织装备教育部工程研究中心,上海201620 [3]东华大学信息科学与技术学院,上海201620

出　　处：《传感器与微系统》2025年第2期10-14,共5页Transducer and Microsystem Technologies

基　　金：国家自然科学基金青年科学基金资助项目(12002085,51603039);上海市浦江人才计划资助项目(PJ(2019)0001512)。

摘　　要：基于柔性传感材料的传感单元虽具有灵敏度高、支持大变形等优点,但由于高聚物的粘弹性特性,导致迟滞、漂移较大,常无法应用于定量测量场景。针对一种织物基底柔性应变传感器展开研究,建立了可以有效描述其电阻松弛特性的二阶Zener并联力-电学粘弹性模型;设计了拉伸和松弛实验,利用实验数据识别出模型参数。所确定模型在松弛情况下预测电阻变化与实测电阻符合较好,R^(2)在0.97以上,均方根误差小于0.55 kΩ。结果表明:所提出的力-电粘弹性模型可以较好地描述该传感器的粘弹性特征,对未来基于模型采用数据融合技术提高测量精度建立了重要基础。Although sensing units based on flexible sensing materials have advantages such as high sensitivity and supporting large deformation,the viscoelastic characteristics of polymers cause large hysteresis and drift,hence can not be applied to quantitative measurement scenarios.A typical fabric-based flexible strain sensor is studied.A second-order Zener parallel force-electro mechanical viscoelastic model is established to describe resistance relaxation characteristics effectively.Then,through designed tensile and relaxation experiments,model parameters can be identified by using experimental data.The obtained model is then used to predict resistance variation during relaxation,the predicted resistance is in good agreement with the measured resistance,with R^(2) of over 0.97 and root mean square error(RMSE)is less than 0.55 kΩ.This result indicates that the model can describe the viscoelastic characterize of the fabric strain sensor well,which establishes an important foundation for increasing measurement precision through data fusion technology based on model.

关 键 词：织物传感器 粘弹性模型 电阻松弛 参数识别 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]