scholarly journals Flexible and wearable strain sensor based on electrospun carbon sponge/polydimethylsiloxane composite for human motion detection

RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 4186-4193
Author(s):  
He Gong ◽  
Chuan Cai ◽  
Hongjun Gu ◽  
Qiushi Jiang ◽  
Daming Zhang ◽  
...  
Keyword(s):  
Motion Detection ◽  
Strain Sensor ◽  
Human Motion ◽  
Gauge Factor ◽  
Human Motion Detection ◽  
Tensile Strains

Electrospun carbon sponge was used to measure tensile strains with a high gauge factor.

scholarly journals Flexible Strain Sensor Based on Carbon Black/Silver Nanoparticles Composite for Human Motion Detection

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1836 ◽  
Author(s):  
Weiyi Zhang ◽  
Qiang Liu ◽  
Peng Chen
Keyword(s):  
Silver Nanoparticles ◽  
Carbon Black ◽  
Motion Detection ◽  
Thermoplastic Polyurethane ◽  
Strain Sensor ◽  
Human Motion ◽  
Tunneling Effect ◽  
Gauge Factor ◽  
Human Motion Detection ◽  
Flexible Strain Sensor

The demand for flexible and wearable electronic devices with excellent stretchability and sensitivity is increasing, especially for human motion detection. In this work, a simple, low-cost and convenient strategy has been employed to fabricate flexible strain sensor with a composite of carbon black and silver nanoparticles as sensing materials and thermoplastic polyurethane as matrix. The strain sensors thus prepared possesses high stretchability and good sensitivity (gauge factor of 21.12 at 100% tensile strain), excellent static (almost constant resistance variation under 50% strain for 600 s) and dynamic (100 cycles) stability. Compared with bare carbon black-based strain sensor, carbon black/silver nanoparticles composite-based strain sensor shows ~18 times improvement in sensitivity at 100% strain. In addition, we discuss the sensing mechanisms using the disconnection mechanism and tunneling effect which results in high sensitivity of the strain sensor. Due to its good strain-sensing performance, the developed strain sensor is promising in detecting various degrees of human motions such as finger bending, wrist rotation and elbow flexion.

Enhancing the sensitivity of crack-based strain sensor assembled by functionalized graphene for human motion detection

2021 ◽  
Vol 64 (8) ◽  
pp. 1805-1813
Author(s):  
YueHua Huang ◽  
Yi Xiang ◽  
WenTao Ren ◽  
FengJi Li ◽  
ChuanCheng Li ◽  
...  
Keyword(s):  
Motion Detection ◽  
Strain Sensor ◽  
Human Motion ◽  
Functionalized Graphene ◽  
Human Motion Detection

scholarly journals Correction: Zhang, P., et al. A Flexible Strain Sensor Based on the Porous Structure of a Carbon Black/Carbon Nanotube Conducting Network for Human Motion Detection. Sensors 2020, 20, 1154

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2901
Author(s):  
Peng Zhang ◽  
Yucheng Chen ◽  
Yuxia Li ◽  
Yao Zhang ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Black ◽  
Porous Structure ◽  
Black Carbon ◽  
Motion Detection ◽  
Strain Sensor ◽  
Human Motion ◽  
Human Motion Detection ◽  
Flexible Strain Sensor

The authors wish to make the following corrections to this paper [...]

Highly Stretchable and Compressible Carbon Nanofiber–Polymer Hydrogel Strain Sensor for Human Motion Detection

2020 ◽  
Vol 305 (3) ◽  
pp. 1900813 ◽  
Author(s):  
Baowei Cheng ◽  
Shulong Chang ◽  
Hui Li ◽  
Yunxing Li ◽  
Weixia Shen ◽  
...  
Keyword(s):  
Motion Detection ◽  
Carbon Nanofiber ◽  
Strain Sensor ◽  
Human Motion ◽  
Polymer Hydrogel ◽  
Human Motion Detection ◽  
Highly Stretchable

scholarly journals Facile Preparation of Highly Stretchable TPU/Ag Nanowire Strain Sensor with Spring-Like Configuration

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 339
Author(s):  
Wei Pan ◽  
Juan Wang ◽  
Yong-Ping Li ◽  
Xiao-Bo Sun ◽  
Jin-Ping Wang ◽  
...  
Keyword(s):  
Motion Detection ◽  
Flexible Electronics ◽  
Strain Sensor ◽  
Dip Coating ◽  
Human Motion ◽  
Free Standing ◽  
Weight Percentage ◽  
Human Motion Detection ◽  
Ag Nanowires ◽  
Dip Coating Technique

Stretchable nano-fibers have attracted dramatic attention for the utility in wearable and flexible electronics. In the present case, Ag nanowires (AgNWs)-intertwined thermoplastic polyurethanes (TPU) unwoven nano-membrane is fabricated by an electrospinning method and dip coating technique. Then a strain sensor with a spring-like configuration is fabricated by a twisted method. The sensor exhibits superior electrical conductivity up to 3990 S·cm−1 due to the high weight percentage of the Ag nanowires. Additionally, thanks to the free-standing spring-like configuration that consists of uniform neat loops, the strain sensor can detect a superior strain up to 900% at the point the sensor ruptures. On the other hand, the configuration can mostly protect the AgNWs from falling off. Furthermore, major human motion detection, like movement of a human forefinger, and minor human motion detection, such as a wrist pulse, show the possible application of the sensor in the field of flexible electronics.

Highly Sensitive and Large-Range Strain Sensor with a Self-Compensated Two-Order Structure for Human Motion Detection

2019 ◽  
Vol 11 (8) ◽  
pp. 8527-8536 ◽  
Author(s):  
Jianhua Ma ◽  
Peng Wang ◽  
Hongyu Chen ◽  
Shenjie Bao ◽  
Wei Chen ◽  
...  
Keyword(s):  
Motion Detection ◽  
Large Range ◽  
Strain Sensor ◽  
Human Motion ◽  
Order Structure ◽  
Human Motion Detection ◽  
Highly Sensitive
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