Pre-impact and Impact Detection of Falls Using Built-In Tri-accelerometer of Smartphone

2014 ◽  
pp. 167-174 ◽  
Author(s):  
Liyu Mao ◽  
Ding Liang ◽  
Yunkun Ning ◽  
Yingnan Ma ◽  
Xing Gao ◽  
...  
Keyword(s):  
Impact Detection

scholarly journals SARS-CoV-2 N gene mutations impact detection by clinical molecular diagnostics: Reports in two cities in the United States

2021 ◽  
pp. 115468
Author(s):  
Mindy Leelawong ◽  
Stephanie L. Mitchell ◽  
Randal C. Fowler ◽  
Scott Hughes ◽  
Marissa P. Griffith ◽  
...  
Keyword(s):  
United States ◽  
Molecular Diagnostics ◽  
Gene Mutations ◽  
The United States ◽  
N Gene ◽  
Impact Detection ◽  
Two Cities

Statistical Analysis of SHM Passive Sensing Systems

2015 ◽  
Vol 665 ◽  
pp. 241-244
Author(s):  
Marco Thiene ◽  
Zahra Sharif Khodaei ◽  
M.H. Aliabadi
Keyword(s):  
Statistical Analysis ◽  
Health Monitoring ◽  
Sensor Failure ◽  
Impact Detection ◽  
Sensing Systems ◽  
Detection And Identification ◽  
Passive Sensing ◽  
Service Load ◽  
Reliability And Robustness ◽  
Load Conditions

Structural Health Monitoring (SHM) techniques have gained an increased interest to be utilised alongside NDI techniques for aircraft maintenance. However, to take the SHM methodologies from the laboratory conditions to actual structures under real load conditions requires them to be assessed in terms of reliability and robustness. In this work, a statistical analysis is carried out for a passive SHM system capable of impact detection and identification. The sensitivity of the platform to parameters such as noise, sensor failure and in-service load conditions has been investigated and reported.

scholarly journals A Generalized Method for Flat Plates Impact Detection and Location

2013 ◽  
Vol 543 ◽  
pp. 171-175
Author(s):  
Jose Andrés Somolinos ◽  
Rafael Morales ◽  
Carlos Morón ◽  
Alfonso Garcia
Keyword(s):  
Signal Processing ◽  
Flat Plate ◽  
Acoustic Signal ◽  
Experimental Results ◽  
Piezoelectric Sensors ◽  
Experimental Setup ◽  
Flat Plates ◽  
Impact Detection ◽  
Timing Difference

In the last years, many analyses from acoustic signal processing have been used for different applications. In most cases, these sensor systems are based on the determination of times of flight for signals from every transducer. This paper presents a flat plate generalization method for impact detection and location over linear links or bars-based structures. The use of three piezoelectric sensors allow to achieve the position and impact time while the use of additional sensors lets cover a larger area of detection and avoid wrong timing difference measurements. An experimental setup and some experimental results are briefly presented.

scholarly journals Characterization of space dust using acoustic impact detection

2016 ◽  
Vol 140 (2) ◽  
pp. 1429-1438 ◽  
Author(s):  
Robert D. Corsaro ◽  
Frank Giovane ◽  
Jer-Chyi Liou ◽  
Mark J. Burchell ◽  
Michael J. Cole ◽  
...  
Keyword(s):  
Impact Detection ◽  
Acoustic Impact ◽  
Space Dust
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