HIGH RESOLUTION EDDY-CURRENT WIRE TESTING BASED ON A GMR SENSOR-ARRAY

2009 ◽  
Author(s):  
Marc Kreutzbruck ◽  
Kai Allweins ◽  
Chris Strackbein ◽  
Hendrick Bernau ◽  
Donald O. Thompson ◽  
...  
Keyword(s):  
High Resolution ◽  
Eddy Current ◽  
Sensor Array ◽  
Gmr Sensor

scholarly journals Towards human distance estimation using a thermal sensor array

2021 ◽  
Author(s):  
Abdallah Naser ◽  
Ahmad Lotfi ◽  
Joni Zhong
Keyword(s):  
High Resolution ◽  
Independent Living ◽  
Sensor Array ◽  
Distance Estimation ◽  
Thermal Sensor ◽  
Indoor Environments ◽  
Contagious Diseases ◽  
Novel Approach ◽  
Thermal Cameras ◽  
Distance Estimator

AbstractHuman distance estimation is essential in many vital applications, specifically, in human localisation-based systems, such as independent living for older adults applications, and making places safe through preventing the transmission of contagious diseases through social distancing alert systems. Previous approaches to estimate the distance between a reference sensing device and human subject relied on visual or high-resolution thermal cameras. However, regular visual cameras have serious concerns about people’s privacy in indoor environments, and high-resolution thermal cameras are costly. This paper proposes a novel approach to estimate the distance for indoor human-centred applications using a low-resolution thermal sensor array. The proposed system presents a discrete and adaptive sensor placement continuous distance estimators using classification techniques and artificial neural network, respectively. It also proposes a real-time distance-based field of view classification through a novel image-based feature. Besides, the paper proposes a transfer application to the proposed continuous distance estimator to measure human height. The proposed approach is evaluated in different indoor environments, sensor placements with different participants. This paper shows a median overall error of $$\pm 0.2$$ ± 0.2  m in continuous-based estimation and $$96.8\%$$ 96.8 % achieved-accuracy in discrete distance estimation.

Flexible High‐Resolution Triboelectric Sensor Array Based on Patterned Laser‐Induced Graphene for Self‐Powered Real‐Time Tactile Sensing

2021 ◽  
pp. 2100709 ◽  
Author(s):  
Zhengguang Yan ◽  
Liangliang Wang ◽  
Yifan Xia ◽  
Rendong Qiu ◽  
Wenquan Liu ◽  
...  
Keyword(s):  
High Resolution ◽  
Real Time ◽  
Sensor Array ◽  
Tactile Sensing ◽  
Self Powered

Eddy Current Testing Probe Based on Double-Coil Excitation and GMR Sensor

2019 ◽  
Vol 68 (5) ◽  
pp. 1533-1542 ◽  
Author(s):  
Andrea Bernieri ◽  
Luigi Ferrigno ◽  
Marco Laracca ◽  
Antonio Rasile
Keyword(s):  
Eddy Current ◽  
Eddy Current Testing ◽  
Current Testing ◽  
Gmr Sensor

scholarly journals Fatigue Crack Length Sizing Using a Novel Flexible Eddy Current Sensor Array

Sensors ◽  
2015 ◽  
Vol 15 (12) ◽  
pp. 32138-32151 ◽  
Author(s):  
Ruifang Xie ◽  
Dixiang Chen ◽  
Mengchun Pan ◽  
Wugang Tian ◽  
Xuezhong Wu ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Crack Length ◽  
Eddy Current ◽  
Sensor Array ◽  
Current Sensor ◽  
Eddy Current Sensor

High-resolution Fiber Optic Seismic Sensor Array for Intrusion Detection of Subway Tunnel

2018 ◽  
Author(s):  
Jiantao Huang ◽  
Wentao Zhang ◽  
Wenhui Huang ◽  
Wenzhu Huang ◽  
Lixin Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Intrusion Detection ◽  
Sensor Array ◽  
Fiber Optic ◽  
Subway Tunnel
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