scholarly journals A piezoelectric flexible insole system for gait monitoring for the Internet of Health Things

2020 ◽  
Author(s):  
Junliang Chen ◽  
Yanning Dai ◽  
Shuo Gao
Keyword(s):  
Real Time ◽  
Chronic Diseases ◽  
Experimental Results ◽  
Detection Sensitivity ◽  
The Internet ◽  
High Detection ◽  
Gait Monitoring ◽  
Continuous Working ◽  
High Detection Sensitivity

Gait is closely associated with many chronic diseases. With the development of the Internet of Health Things (IoHT), long-term gait monitoring and corresponding analysis can be performed remotely, reducing a patient’s time and traffic cost, while providing doctors more valuable gait information. The presented work provides a feasible means for real-time, long-term, and accurate gait monitoring in an IoHT scenario. Through the experimental results, the high detection sensitivity of 54 mN and responsivity of 163 mV/N are achieved, thereby satisfying the need for analyzing various diseases. Furthermore, 16 hours continuous working time indicates its successful utilization during long-term gait monitoring.

scholarly journals A piezoelectric flexible insole system for gait monitoring for the Internet of Health Things

2020 ◽  
Author(s):  
Junliang Chen ◽  
Yanning Dai ◽  
Shuo Gao
Keyword(s):  
Real Time ◽  
Chronic Diseases ◽  
Experimental Results ◽  
Detection Sensitivity ◽  
The Internet ◽  
High Detection ◽  
Gait Monitoring ◽  
Continuous Working ◽  
High Detection Sensitivity

Gait is closely associated with many chronic diseases. With the development of the Internet of Health Things (IoHT), long-term gait monitoring and corresponding analysis can be performed remotely, reducing a patient’s time and traffic cost, while providing doctors more valuable gait information. The presented work provides a feasible means for real-time, long-term, and accurate gait monitoring in an IoHT scenario. Through the experimental results, the high detection sensitivity of 54 mN and responsivity of 163 mV/N are achieved, thereby satisfying the need for analyzing various diseases. Furthermore, 16 hours continuous working time indicates its successful utilization during long-term gait monitoring.

scholarly journals Concurrent Plantar Stress Sensing and Energy Harvesting Technique by Piezoelectric Insole Device and Rectifying Circuitry for Gait Monitoring in the Internet of Health Things

2020 ◽  
Author(s):  
Shuaibo Kang ◽  
Jingjing Lin ◽  
Junliang Chen ◽  
Yanning Dai ◽  
Zhiheng Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Detection Sensitivity ◽  
Detection Accuracy ◽  
Stress Detection ◽  
Force Detection ◽  
Battery Lifetime ◽  
Harvesting Technique ◽  
High Detection ◽  
Stress Sensing ◽  
Gait Monitoring

Concurrent high force detection accuracy and extended battery lifetime are expected for wearable gait monitoring systems. In this article, a piezoelectric insole device and rectifying circuitry-based technique is presented to achieve these two goals. Here, walking induced positive and negative charges are separated for plantar stress detection and energy harvesting respectively, realizing the two functions concurrently. The high detection sensitivity of 55 mN and responsivity of 231 mV/N are achieved, satisfying the need for diagnosing various diseases. 1.6 pJ is stored during a walking event, extending the battery lifetime. The developed technique enhances the development of gait monitoring in IoHT.

Enhanced optical temperature sensing and upconversion emissions based on the Mn2+ codoped NaGdF4:Yb3+,Ho3+ nanophosphor

2019 ◽  
Vol 43 (13) ◽  
pp. 5011-5019 ◽  
Author(s):  
Qinping Qiang ◽  
Yuhua Wang
Keyword(s):  
Temperature Sensing ◽  
Detection Sensitivity ◽  
High Detection ◽  
Upconversion Emissions ◽  
High Detection Sensitivity

In this study, to explore new phosphors for temperature sensing with high detection sensitivity, Yb3+/Ho3+/Mn2+ doped hexagonal NaGdF4 nanoparticles were designed.

MEMS Sensor Devices with a Piezo-Resistive Cantilever

2018 ◽  
Vol 12 (1) ◽  
pp. 4-14
Author(s):  
Kiyoshi Matsumoto ◽  
Isao Shimoyama ◽  
◽  
Keyword(s):  
External Environment ◽  
Detection Sensitivity ◽  
Force Detection ◽  
Mems Sensor ◽  
Thin Structure ◽  
Sensor Devices ◽  
High Detection ◽  
Technical Features ◽  
Very High ◽  
High Detection Sensitivity

We have engaged in researching and developing a large number of sensor devices using piezo-resistive cantilevers. The important technical features of our sensor devices lie in their very high detection sensitivity that has been achieved by the use of cantilevers of a very thin structure: as a typical example, force-detection sensitivity of about 10 pN has been achieved by using cantilevers of 300-nm thickness. This paper presents our developed sensor devices and applications and their respective features: more specifically, devices to directly measure object-contacting forces, devices embedded in an elastic body to measure its deformations, devices to measure air flows and vibrations, devices to measure differential air pressure, devices to measure differential pressure between cavities and external environment, and devices with cantilevers arranged on the liquid interface.

Metglas/Pb(Mg1/3Nb2/3)O3-PbTiO3 magnetoelectric gradiometric sensor with high detection sensitivity

2012 ◽  
Vol 59 (9) ◽  
pp. 2111-2115 ◽  
Author(s):  
Ying Shen ◽  
Keith L. Mclaughlin ◽  
Junqi Gao ◽  
David Gray ◽  
Davresh Hasanyan ◽  
...  
Keyword(s):  
Detection Sensitivity ◽  
High Detection ◽  
High Detection Sensitivity

PAMA–Arg brush-functionalized magnetic composite nanospheres for highly effective enrichment of phosphorylated biomolecules

2018 ◽  
Vol 6 (23) ◽  
pp. 3969-3978 ◽  
Author(s):  
Bin Luo ◽  
Xiaoxi Zhou ◽  
Peipei Jiang ◽  
Qiangying Yi ◽  
Fang Lan ◽  
...  
Keyword(s):  
Polymer Brush ◽  
Detection Sensitivity ◽  
Magnetic Composite ◽  
High Detection ◽  
Highly Effective ◽  
High Enrichment ◽  
High Detection Sensitivity

A novel polymer brush-functionalized magnetic composite nanosphere was successfully prepared, exhibiting large enrichment capacity, extremely high detection sensitivity, and high enrichment recovery in phosphorylated biomolecule enrichment.

scholarly journals Sequence-coded coherent laser ranging with high detection sensitivity

OSA Continuum ◽  
2020 ◽  
Vol 3 (5) ◽  
pp. 1274
Author(s):  
Keren Shemer ◽  
Gil Bashan ◽  
H. Hagai Diamandi ◽  
Yosef London ◽  
Tzur Raanan ◽  
...  
Keyword(s):  
Detection Sensitivity ◽  
Laser Ranging ◽  
High Detection ◽  
High Detection Sensitivity
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