scholarly journals Optimal design of on‐scalp electromagnetic sensor arrays for brain source localisation

2021 ◽  
Author(s):  
Leandro Beltrachini ◽  
Nicolas von Ellenrieder ◽  
Roland Eichardt ◽  
Jens Haueisen
Keyword(s):  
Optimal Design ◽  
Sensor Arrays ◽  
Source Localisation ◽  
Electromagnetic Sensor

Water Content Estimation in Soils Using Novel Planar Electromagnetic Sensor Arrays

2013 ◽  
Vol 64 (5) ◽  
Author(s):  
Mohd Amri Md Yunus ◽  
Syahrul Hisyam Mohamad ◽  
Alif Syarafi M. Nor ◽  
Muhammad Hafis Izran ◽  
Sallehuddin Ibrahim
Keyword(s):  
Water Content ◽  
Sensor Array ◽  
Printed Circuit Board ◽  
Agricultural Soils ◽  
Sensor Arrays ◽  
Circuit Board ◽  
Waveform Generator ◽  
Electromagnetic Sensors ◽  
Electromagnetic Sensor ◽  
The Relationship

Agriculture is one of the important sectors for food supplies. Therefore, a tool for monitoring the agro-environment is important in order to maintain the permanence of agricultural soils. This paper suggests an alternative method for the detection of water content in soils by developing a sensor array with a combination of planar meander and interdigital electromagnetic sensors. The study involved sensor array fabrication using the printed circuit board (PCB) method. The experimental setup consisted of a frequency waveform generator and a signal oscilloscope to collect and analyse the sensors’ output, with VEE Agilent software used to establish the interface. A set of experiments was conducted to determine the relationship between the sensors’ output and the soils’ parameters. The performance of the system was observed where the sensors were tested with the addition of various kinds of soil samples with different concentrations of water content. The sensitivity of the developed sensors was evaluated where the best sensor was selected. Based on the outcomes of the experiments, the Y sensor array placement has the highest sensitivity and can be used to measure the water content in the soils where the data accuracy is compared

scholarly journals Dipole source localisation using bio-mimetic flow-sensor arrays

2009 ◽  
Vol 1 (1) ◽  
pp. 891-894 ◽  
Author(s):  
A.M.K. Dagamseh ◽  
T.S.J. Lammerink ◽  
C.M. Bruinink ◽  
R.J. Wiegerink ◽  
G.J.M. Krijnen
Keyword(s):  
Sensor Arrays ◽  
Flow Sensor ◽  
Dipole Source ◽  
Source Localisation

Sensor Network Optimal Design of Microseismic Monitoring System at the Left Slope of Jinping I Hydropower Station

2013 ◽  
Vol 353-356 ◽  
pp. 872-876 ◽  
Author(s):  
Gang He ◽  
Nu Wen Xu ◽  
Chun Sha ◽  
Li Tian
Keyword(s):  
Optimal Design ◽  
Monitoring System ◽  
Sensor Array ◽  
Sensor Arrays ◽  
Microseismic Monitoring ◽  
Hydropower Station ◽  
Left Bank ◽  
Rock Fracturing ◽  
Bank Slope ◽  
Jinping I Hydropower Station

In order to real time monitor and analyze the rock fracturing due to continuous construction and consolidation at the left slope of Jinping I hydropower station, southwest of China, a microseismic monitoring system was conducted and an optimal design for the sensor arrays was investigated. The sensor array was designed on the basis of P method and Powell algorithm. The artificial fixed blasting tests were applied to adjust the positioning accuracy of the monitoring system. The results show that the location error of seismic source is less than 12 m in the scope of the sensor array, which demonstrates the monitoring system has high positioning g accuracy. The contour of source location shows that the location errors near the main tunnels at the left bank slope is below 6 m. Signals from 689 microseismic events with moment magnitude ranging from -2.1 to -0.2 were recorded during the first year monitoring period from June 15, 2009. The spatial distribution of microseismicity can identify and delineate the potential failure at the left bank slope, which provides some references for the future excavation and consolidation of the hydropower station.

scholarly journals Design of electromagnetic sensor arrays optimised for inversion of the magnetic polarisability tensor

2015 ◽  
Author(s):  
Liam A Marsh ◽  
Omar A. Abdel Rehim ◽  
Yee M Tan ◽  
Michael D O'Toole ◽  
David W Armitage ◽  
...  
Keyword(s):  
Sensor Arrays ◽  
Polarisability Tensor ◽  
Electromagnetic Sensor

Optimal Design and Simulation of Sensor Arrays for Solar Motion Estimation

2017 ◽  
Vol 17 (6) ◽  
pp. 1673-1680 ◽  
Author(s):  
Peyman Yousefian ◽  
Mohammad Durali ◽  
Mir Abbas Jalali
Keyword(s):  
Optimal Design ◽  
Motion Estimation ◽  
Sensor Arrays ◽  
Solar Motion
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