可穿戴计算机
材料科学
压阻效应
电阻器
喷墨打印
热塑性聚氨酯
可穿戴技术
压力传感器
织物
电极
印刷电路板
紧迫的
导电体
数码产品
电气工程
信号(编程语言)
光电子学
纳米技术
墨水池
印刷电子产品
3d打印
机械工程
计算机科学
可伸缩电子设备
导电油墨
生物医学工程
电压
嵌入式系统
复合材料
工程类
弹性体
化学
物理化学
程序设计语言
作者
Beomjun Ju,In-Hwan Kim,Braden M. Li,Caitlin G. Knowles,Amanda C. Mills,Landon Grace,Jesse S. Jur
标识
DOI:10.1002/adhm.202100893
摘要
Pressure sensors for wearable healthcare devices, particularly force sensitive resistors (FSRs) are widely used to monitor physiological signals and human motions. However, current FSRs are not suitable for integration into wearable platforms. This work presents a novel technique for developing textile FSRs (TFSRs) using a combination of inkjet printing of metal-organic decomposition silver inks and heat pressing for facile integration into textiles. The insulating void by a thermoplastic polyurethane (TPU) membrane between the top and bottom textile electrodes creates an architectured piezoresistive structure. The structure functions as a simple logic switch where under a threshold pressure the electrodes make contact to create conductive paths (on-state) and without pressure return to the prior insulated condition (off-state). The TFSR can be controlled by arranging the number of layers and hole diameters of the TPU spacer to specify a wide range of activation pressures from 4.9 kPa to 7.1 MPa. For a use-case scenario in wearable healthcare technologies, the TFSR connected with a readout circuit and a mobile app shows highly stable signal acquisition from finger movement. According to the on/off state of the TFSR with LED bulbs by different weights, it can be utilized as a textile switch showing tactile feedback.
科研通智能强力驱动
Strongly Powered by AbleSci AI