自供能人体足部压力监测传感器
Self-powered Human Feet Pressure Sensor
任静 1何剑1
作者信息
- 1. 中北大学仪器与电子学院 太原 030051;中北大学仪器科学与动态测试教育部重点实验室 太原 030051
- 折叠
摘要
论文制备了一种聚二甲基硅氧烷/多壁碳纳米管(PDMS/MWCNTs)多孔结构的复合材料,并设计了一款自供能压力监测传感器.MWCNTs的掺入不仅提高复合材料的介电常数,而且由碳法绵白糖受热溶解于水形成多孔结构可捕获更多电荷,从而耦合作用提升摩擦电性能,进而增大传感灵敏度.实验表明:在单电极模式下,当MWCNTs为10wt%,孔隙率为62.8%时,该自供能传感器在110 N的压力下,开路电压和短路电流分别为90V和2 μA.该传感器薄膜具有工艺简单、压力检测域宽(0 N～125 N)、响应速度快(25 ms)、工作稳定性好(循环1 800次)等优点.此外,论文还构建了人体足部压力监测系统,并验证了该传感器能够实现自供能传感监测.该次工作在人体健康监测系统方面有着巨大的应用前景.
Abstract
In this paper,a porous polydimethylsiloxane/multi-walled carbon nanotubes(PDMS/MWCNTs)is fabricated,and a self-powered pressure monitoring sensor is designed using the composite.The incorporation of MWCNTs can increase the di-electric constant of the composite material,and the porous structure is formed by dissolving carbon sugar in water by a heating pro-cess can capture more electric charge.The coupling effect can improve the output performance and the sensitivity of sensor.The ex-perimental results show that when the MWCNTs are 10wt%and the porosity is 62.8%in the single electrode mode,the open-circuit voltage and short-circuit current of the self-powered sensor can reach 90 V and 2 μA,respectively.The sensor also has the advan-tages of simple process,wide pressure detection field(0 N～125 N),fast response speed(25 ms),good stability(1 800 cycles)and so on.In addition,human feet pressure monitoring system is constructed and it's verified that the sensor can realize self-func-tional sensing monitoring.This work has great application prospects in human health monitoring systems.
关键词
自供能压力传感器/PDMS/MWCNTs/多孔结构/足部压力监测Key words
self-powered pressure sensor/PDMS/MWCNTs/porous structure/human feet pressure monitoring引用本文复制引用
基金项目
国家自然科学基金项目(62171414)
国家自然科学基金项目(52175554)
国家自然科学基金项目(52205608)
国家自然科学基金项目(62171415)
国家自然科学基金项目(62001431)
出版年
2024
国家科技期刊平台
NSTL
万方数据