基于PVDF压电薄膜的触觉传感器研究  

Research on tactile sensor based on PVDF piezoelectric thin-film

作　　者：李铁军[1] 戴骐 杨若曦 马涛 刘今越[1] LI Tiejun;DAI Qi;YANG Ruoxi;MA Tao;LIU Jinyue(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学机械工程学院,天津300130

出　　处：《传感器与微系统》2021年第9期68-70,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(U1813222);河北省教育厅重点资助项目(ZD2018246)。

摘　　要：模仿人体手指的构造,制作了一种以不同硬度的聚二甲基硅氧烷(PDMS)为外层材料,聚偏氟乙烯(PVDF)为传感元件的柔性触觉传感器,利用电荷放大器采集传感器与五种常见物体接触并滑动时产生的振动信号,对信号进行选取、滤波、提取特征值等处理,结合分类算法,对物体材质进行辨识分类。实验证明,此传感器对5种常见物体材质的识别率可以达到90%以上。Imitating structure of human fingers,a flexible sensor is fabricated using polydimethylsiloxane(PDMS)with different hardness as the outer material and polyvinylidene fluoride(PVDF)as the sensing element.The vibration signals generated when five common objects touch with sensor and slide acquired by charge amplifier are processed such as selected,filtered,and feature values.In combination with the classification algorithm,the material of the object is classified.Experiments show that the recognition rate of the five kinds of object materials can reach over 90%.

关 键 词：触觉传感器 聚二甲基硅氧烷 聚偏氟乙烯 材质识别 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]