A Wearable Capacitive Sensor Based on Ring/Disk-Shaped Electrode and Porous Dielectric for Noncontact Healthcare Monitoring

doi:10.1002/gch2.201900079

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	A Wearable Capacitive Sensor Based on Ring/Disk-Shaped Electrode and Porous Dielectric for Noncontact Healthcare Monitoring
	Zheng, Ya-Nan ; Yu, Zhe ; Mao, Guoyong ; Li, Yunyao ; Pravarthana, Dhanapal ; Asghar, Waqas ; Liu, Yiwei ; Qu, Shaoxing ; Shang, Jie ; Li, Run-Wei
刊名	GLOBAL CHALLENGES
	2020
卷号	4 期号:5
关键词	PRESSURE SENSOR TOUCH SENSOR TRANSPARENT PROXIMITY HEART ARRAY FILM SOFT
DOI	10.1002/gch2.201900079
英文摘要	Wearable sensors are gradually enabling decentralized healthcare systems. However, these sensors need to be closely attached to skin, which is unsuitable for long-term dynamic health monitoring of the patients, such as infants or persons with burn injuries. Here, a wearable capacitive sensor based on the capacitively coupled effect for healthcare monitoring in noncontact mode is reported. It consists of a ring-shaped top electrode, a disk-shaped bottom electrode, and a porous dielectric layer with low permittivity. This unique design enhanced the capacitively coupled effect of the sensor, which enables a high noncontact detectivity of capacitance change. When an object approaches the sensor, its capacitance change (Delta C/C-i = -38.7%) is 3-5 times higher than that of previously reported sensors. Meanwhile, the sensor is insensitive to the stretching strain and pressure (Delta C/C-i < 5%) due to the unique ring-shaped electrode and the incompressible closed cells of the porous dielectric material, respectively. Finally, various human physiological signals (pulse and respiratory) are recorded in noncontact mode, where a person wears loose and soft clothes implanted with the sensor. Thus, it is promising to build smart healthcare clothes based on it to develop wearable decentralized healthcare systems.
学科主题	Science & Technology - Other Topics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19865]
专题	2020专题
作者单位	1.Shang, J 2.Li, RW (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Peoples R China. 3.Li, RW (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Zheng, Ya-Nan,Yu, Zhe,Mao, Guoyong,et al. A Wearable Capacitive Sensor Based on Ring/Disk-Shaped Electrode and Porous Dielectric for Noncontact Healthcare Monitoring[J]. GLOBAL CHALLENGES,2020,4(5).
APA	Zheng, Ya-Nan.,Yu, Zhe.,Mao, Guoyong.,Li, Yunyao.,Pravarthana, Dhanapal.,...&Li, Run-Wei.(2020).A Wearable Capacitive Sensor Based on Ring/Disk-Shaped Electrode and Porous Dielectric for Noncontact Healthcare Monitoring.GLOBAL CHALLENGES,4(5).
MLA	Zheng, Ya-Nan,et al."A Wearable Capacitive Sensor Based on Ring/Disk-Shaped Electrode and Porous Dielectric for Noncontact Healthcare Monitoring".GLOBAL CHALLENGES 4.5(2020).