摘要
在可穿戴电子设备迅猛发展的背景下,构建面向人体运动检测的可穿戴柔性应变传感器成为目前传感器研究的重点之一。基于聚丙烯酰胺(PAM)、纤维素纳米晶(CNCs)、单宁酸(TA)构建了一种导电水凝胶基柔性应变传感器。机械性能与电学性能测试结果表明,相较于其他柔性应变传感器,聚丙烯酰胺-纤维素纳米晶-单宁酸导电水凝胶基柔性应变传感器具有超长的拉伸范围(0%~2 900%)、较好的黏附性、快速的响应时间(280 ms)和良好的稳定性(超320次加载-卸载循环)。该传感器对人体关节弯曲的大应变与喉部活动的小应变等运动信号具备良好的检测功能,可用作人体运动检测的柔性可穿戴传感器。
Under the rapid development of wearable electronic devices,it is a hotspot to develop a wearable flexible strain sensor which can be used to detect human movement.A conductive hydrogelbased flexible strain sensor is constructed based on polyacrylamide,cellulose nanocrystals,and tannic acid.The mechanical and electrical performance test results of this strain sensor show that compared with other flexible strain sensors polyacrylamide/cellulose nanocrystals/tannic acid conductive hydrogelbased flexible strain sensor has an ultralong tensile range(0%-2900%),better adhesion,fast response time(280 ms),and good stability(over 320 loading and unloading cycles).The sensor has good detection function for motion signals such as large strain of human joint bending and small strain of laryngeal movement,and can be used as a flexible wearable sensor for human motion detection.
作者
张冬至
邵佳慧
刘希臣
周兰娟
陈璨
ZHANG Dongzhi;SHAO Jiahui;LIU Xichen;ZHOU Lanjuan;CHEN Can(College of Control Science and Engineering,China University of Petroleum(East China),Qingdao 266580,Shandong,China)
出处
《实验室研究与探索》
CAS
北大核心
2024年第4期10-13,共4页
Research and Exploration In Laboratory
基金
山东省教学改革研究重点项目(Z2022182)
中国石油大学(华东)教学改革项目(CZ2022025,CM2022073,CM2022070)。
关键词
可穿戴电子
导电水凝胶
柔性传感器
人体运动检测
wearable electronics
conductive hydrogel
flexible sensor
human motion detection
