Fibrous strain sensor with ultra-sensitivity, wide sensing range, and large linearity for full-range detection of human motion

Nanoscale ◽  
2018 ◽  
Vol 10 (37) ◽  
pp. 17512-17519 ◽  
Author(s):  
Hanguang Wu ◽  
Qiang Liu ◽  
Hongwu Chen ◽  
Gaoquan Shi ◽  
Chun Li
Keyword(s):  
Full Range ◽  
Strain Sensor ◽  
Human Motion ◽  
Good Linearity ◽  
Sensing Range ◽  
Comprehensive Properties ◽  
Human Motions ◽  
Excellent Stability

The FPC strain sensor exhibits superior comprehensive properties integrating extraordinary sensitivity, wide sensing range, low hysteresis, good linearity, and excellent stability. It can detect full-range human motions.

A Stretchable Strain Sensor Based on CNTs/GR for Human Motion Monitoring

NANO ◽  
2022 ◽  
Author(s):  
Delin Chen ◽  
Hongmei Zhao ◽  
Weidong Yang ◽  
Dawei Wang ◽  
Xiaowei Huang ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Human Movement ◽  
Human Motion ◽  
Strain Sensors ◽  
Quick Response ◽  
Practical Applications ◽  
Sensing Range ◽  
Human Monitoring ◽  
Human Motion Monitoring ◽  
Smart Wearable

Flexible/stretchable strain sensors have attracted much attention due to their advantages for human-computer interaction, smart wearable and human monitoring. However, there are still great challenges on gaining super durability, quick response, and wide sensing range. This paper provides a simple process to obtain a sensor which is based on graphene (GR)/carbon nanotubes (CNTs) and Ecoflex hybrid, which demonstrates superb endurance (over 1000 cycles at 100% strain), remarkable sensitivity (strain over 125% sensitivity up to 20) and wide sensing range (175%). All results indicate that it is capable for human movement monitoring, such as finger and knee bending and pulse beat. Most importantly, it can be used as a warning function for the night cyclist’s ride. This research provides the feasibility of using this sensor for practical applications.

A transparent, stretchable, stable, self-adhesive ionogel-based strain sensor for human motion monitoring

2019 ◽  
Vol 7 (36) ◽  
pp. 11244-11250 ◽  
Author(s):  
Jingxian Sun ◽  
Yixin Yuan ◽  
Guoqiang Lu ◽  
Lingfeng Li ◽  
Xiaoqun Zhu ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Human Motion ◽  
Human Motion Monitoring ◽  
Human Motions

A multi-functional ionogel-based strain sensor was synthesized to detect various human motions.

A flexible, adhesive and self-healable hydrogel-based wearable strain sensor for human motion and physiological signal monitoring

2019 ◽  
Vol 7 (30) ◽  
pp. 4638-4648 ◽  
Author(s):  
Shan Xia ◽  
Shixin Song ◽  
Fei Jia ◽  
Guanghui Gao
Keyword(s):  
Strain Sensor ◽  
Human Motion ◽  
Joint Motion ◽  
Wearable Sensor ◽  
Physiological Signal ◽  
Signal Monitoring ◽  
Human Motions

A flexible and wearable sensor is prepared to monitor human motions such as joint motion, speaking, breathing, and slight blood pulsation.

An ultraflexible polyurethane yarn-based wearable strain sensor with a polydimethylsiloxane infiltrated multilayer sheath for smart textiles

Nanoscale ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 4110-4118 ◽  
Author(s):  
Xiaoting Li ◽  
Keng Huat Koh ◽  
Musthafa Farhan ◽  
King Wai Chiu Lai
Keyword(s):  
Full Range ◽  
Strain Sensor ◽  
Superior Performance ◽  
Smart Textiles ◽  
Human Motions

This paper proposes an ultraflexible polyurethane yarn-based strain sensor. It demonstrates superior performance and enormous potential in monitoring full-range human motions and manipulate a hand robot to move, catch, and grasp some objects.

Carbonized silk georgette as an ultrasensitive wearable strain sensor for full-range human activity monitoring

2017 ◽  
Vol 5 (30) ◽  
pp. 7604-7611 ◽  
Author(s):  
Chunya Wang ◽  
Kailun Xia ◽  
Muqiang Jian ◽  
Huimin Wang ◽  
Mingchao Zhang ◽  
...  
Keyword(s):  
Human Activity ◽  
Full Range ◽  
Strain Sensor ◽  
Activity Monitoring ◽  
Strain Sensors ◽  
Human Motions

Silk georgette based wearable strain sensors are developed, which exhibit outstanding performance and great potential in monitoring full-range human motions.

scholarly journals Preparing Polypyrrole-Coated Stretchable Textile via Low-Temperature Interfacial Polymerization for Highly Sensitive Strain Sensor

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 788 ◽  
Author(s):  
Chen ◽  
Li ◽  
Qiao ◽  
Lu
Keyword(s):  
Low Temperature ◽  
Real Time ◽  
Dynamic Range ◽  
Interfacial Polymerization ◽  
Strain Sensor ◽  
Human Motion ◽  
Gauge Factor ◽  
Infrared Spectrometry ◽  
Highly Sensitive ◽  
Human Motions

The stretchable sensor has been considered as the most important component in a wearable device. However, it is still a great challenge to develop a highly sensitive textile-based strain sensor with good flexibility, excellent skin affinity, and large dynamic range. Herein, polypyrrole (PPy) was immobilized on a stretchable textile knitted by polyester and spandex via low-temperature interfacial polymerization to prepare a conductive strain sensor for human motion and respiration measurements. Scanning electron microscopy, Fourier transform infrared spectrometry, and thermal gravimetric data verify that a thin layer of PPy has been successfully coated on the textile with a high density and very uniform distribution. The resistance of the as-prepared textile is 21.25 Ω/cm2 and the PPy-coated textile could be used as an electric conductor to light up a LED lamp. Moreover, the textile could tolerate folding at an angle of 180° and 500 times of bending-twisting cycles without significant changes on its resistance. A negative correlation between the resistance change and the applied strain is observed for the textile-based sensor in the strain ranging from 0 to 71% with the gauge factor of −0.46. After more than 200 cycles of stretching-releasing under the strain of 26%, there is no obvious alteration on the sensing responses. The sensors were attached on volunteers’ body or clothes for the real-time measurement of human motions and respiration, demonstrating that the textile-based sensor could sensitively detect finger, elbow, and knee bending and differentiate deep, normal, and fast breath. This work may provide an approach to uniform and dense coating conductive polymers on textiles for highly sensitive and stretchable sensors, which possess great potentials in practical applications for real-time monitoring human motions and physiological signs.

High performance strain sensor based on buckypaper for full-range detection of human motions

Nanoscale ◽  
2018 ◽  
Vol 10 (31) ◽  
pp. 14966-14975 ◽  
Author(s):  
Chengwei Li ◽  
Dongmei Zhang ◽  
Chenghao Deng ◽  
Peng Wang ◽  
Yunping Hu ◽  
...  
Keyword(s):  
High Performance ◽  
Full Range ◽  
Strain Sensor ◽  
Human Motions

A high-performance strain sensor based on buckypaper has been fabricated and studied.

Aligned flexible conductive fibrous networks for highly sensitive, ultrastretchable and wearable strain sensors

2018 ◽  
Vol 6 (24) ◽  
pp. 6575-6583 ◽  
Author(s):  
Guojie Li ◽  
Kun Dai ◽  
Miaoning Ren ◽  
Yan Wang ◽  
Guoqiang Zheng ◽  
...  
Keyword(s):  
High Performance ◽  
Strain Sensor ◽  
Strain Sensors ◽  
Sensing Range ◽  
Fibrous Network ◽  
Highly Sensitive ◽  
Human Motions

A high performance strain sensor based on an aligned conductive fibrous network was prepared with large responsivity, broad sensing range and remarkable stability, demonstrating the applications for detections of both vigorous and subtle human motions.

scholarly journals Flexible Metal/Polymer Composite Films Embedded with Silver Nanowires as a Stretchable and Conductive Strain Sensor for Human Motion Monitoring

Micromachines ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 372 ◽  
Author(s):  
Jinjin Luan ◽  
Qing Wang ◽  
Xu Zheng ◽  
Yao Li ◽  
Ning Wang
Keyword(s):  
Polymer Composite ◽  
Silver Nanowires ◽  
Composite Films ◽  
Strain Sensor ◽  
High Sensitivity ◽  
Human Motion ◽  
Applied Strain ◽  
Potential Candidate ◽  
Flexible Metal ◽  
Metal Polymer

To avoid conductive failure due to the cracks of the metal thin film under external loads for the wearable strain sensor, a stretchable metal/polymer composite film embedded with silver nanowires (AgNWs) was examined as a potential candidate. The combination of Ag film and AgNWs enabled the fabrication of a conductive film that was applied as a high sensitivity strain sensor, with gauge factors of 7.1 under the applied strain of 0–10% and 21.1 under the applied strain of 10–30%. Furthermore, the strain sensor was demonstrated to be highly reversible and remained stable after 1000 bending cycles. These results indicated that the AgNWs could act as elastic conductive bridges across cracks in the metal film to maintain high conductivity under tensile and bending loads. As such, the strain sensor engineered herein was successfully applied in the real-time detection and monitoring of large motions of joints and subtle motions of the mouth.

Sign in / Sign up

Export Citation Format

Share Document