3-Dimensional Logic Motion Sensing of Polyvinylidene Fluoride for Self-Powered Flexible Interactive Electronics

2021 ◽  
Author(s):  
Pengcheng Wu ◽  
Zhenguo Yang ◽  
Guanglin Li ◽  
Yanlong Tai
Keyword(s):  
Polyvinylidene Fluoride ◽  
Motion Sensing ◽  
3 Dimensional ◽  
Interactive Electronics ◽  
Self Powered

Electrospun polyvinylidene fluoride nanofiber mats for self-powered sensors

2017 ◽  
Author(s):  
Debarun Sengupta ◽  
Ajay Giri Prakash Kottapalli ◽  
Jianmin Miao ◽  
Chee Yee Kwok
Keyword(s):  
Polyvinylidene Fluoride ◽  
Self Powered ◽  
Nanofiber Mats

A Battery‐Less Arbitrary Motion Sensing System Using Magnetic Repulsion‐Based Self‐Powered Motion Sensors and Hybrid Nanogenerator

2020 ◽  
Vol 30 (36) ◽  
pp. 2003276
Author(s):  
Trilochan Bhatta ◽  
Pukar Maharjan ◽  
Md. Salauddin ◽  
M. Toyabur Rahman ◽  
SM Sohel Rana ◽  
...  
Keyword(s):  
Motion Sensors ◽  
Motion Sensing ◽  
Sensing System ◽  
Hybrid Nanogenerator ◽  
Self Powered

Self‐Powered Multifunctional Triboelectric Sensor Based on PTFE/PU for Linear, Rotary, and Vibration Motion Sensing

2020 ◽  
Vol 5 (7) ◽  
pp. 2000159 ◽  
Author(s):  
Zhihua Wang ◽  
Fengduo Zhang ◽  
Na Li ◽  
Tao Yao ◽  
Dianli Lv ◽  
...  
Keyword(s):  
Motion Sensing ◽  
Self Powered

scholarly journals Piezoelectric sensor based on graphene-doped PVDF nanofibers for sign language translation

2020 ◽  
Vol 11 ◽  
pp. 1655-1662
Author(s):  
Shuai Yang ◽  
Xiaojing Cui ◽  
Rui Guo ◽  
Zhiyi Zhang ◽  
Shengbo Sang ◽  
...  
Keyword(s):  
Sign Language ◽  
Polyvinylidene Fluoride ◽  
Motion Tracking ◽  
Language Translation ◽  
High Sensitivity ◽  
Piezoelectric Sensor ◽  
Body Motion ◽  
Sensing System ◽  
Gesture Control ◽  
Self Powered

The tracking of body motion, such as bending or twisting, plays an important role in modern sign language translation. Here, a subtle flexible self-powered piezoelectric sensor (PES) made of graphene (GR)-doped polyvinylidene fluoride (PVDF) nanofibers is reported. The PES exhibits a high sensitivity to pressing and bending, and there is a stable correlation between bending angle and piezoelectric voltage. The sensitivity can be adjusted by changing the doping concentration of GR. Also, when the PES contacts a source of heat, a pyroelectric signal can be acquired. The positive correlation between temperature and signal can be used to avoid burns. The integrated sensing system based on multiple PESs can accurately recognize the action of each finger in real time, which can be effectively applied in sign language translation. PES-based motion-tracking applications have been effectively used, especially in human–computer interaction, such as gesture control, rehabilitation training, and auxiliary communication.

scholarly journals Gas Sensing and Power Harvesting Polyvinylidene Fluoride Nanocomposites Containing Hybrid Nanotubes

2020 ◽  
Vol 49 (4) ◽  
pp. 2677-2687 ◽  
Author(s):  
Deepalekshmi Ponnamma ◽  
Ashok K. Sharma ◽  
Priya Saharan ◽  
Mariam Al Ali Al-Maadeed
Keyword(s):  
Polyvinylidene Fluoride ◽  
Gas Sensing ◽  
Response Times ◽  
Hydrothermal Reaction ◽  
Nanocomposite Films ◽  
Piezoelectric Response ◽  
Filler Materials ◽  
Liquefied Petroleum Gas ◽  
Self Powered ◽  
The Stability

AbstractGas sensing properties at room temperature and energy harvesting performances are realized for the polyvinylidene fluoride (PVDF) nanocomposites containing titanium dioxide (TiO2) nanotubes grown in the presence of carbon nanotubes (CNT). While hydrothermal reaction is practiced for the development of TiO2/CNT hybrid nanotubes, spin coating is done for the nanocomposite films to be deposited on sensing electrodes. Influence of various filler concentrations and the synergistic combination of fillers on the sensing characteristics are studied by recording the response times and the stability of the results. Upon exposure to liquefied petroleum gas, the PVDF/TiO2-CNT (2.5 wt.%) gas sensor shows a sensing response of 0.45 s (400 ppm LPG), approximately nine times higher than the composite containing 2.5 wt.% of TiO2 or 2.5 wt.% CNT. The piezoelectric response of the samples is also recorded and correlated with the synergistic influence of the filler materials. The current study can stimulate a good trend in fabricating self-powered gas sensors from PVDF nanocomposites.

Self‐Powered Noncontact Electronic Skin for Motion Sensing

2017 ◽  
Vol 28 (6) ◽  
pp. 1704641 ◽  
Author(s):  
Hanxiang Wu ◽  
Zongming Su ◽  
Mayue Shi ◽  
Liming Miao ◽  
Yu Song ◽  
...  
Keyword(s):  
Motion Sensing ◽  
Electronic Skin ◽  
Self Powered
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