An Optimized Forward Problem Solver for the Complete Characterization of the Electromagnetic Properties of Biological Tissues in Magnetic Induction Tomography

2012 ◽  
Vol 48 (12) ◽  
pp. 4707-4712 ◽  
Author(s):  
J. M. S. Caeiros ◽  
R. C. Martins
Keyword(s):  
Magnetic Induction ◽  
Biological Tissues ◽  
Complete Characterization ◽  
Forward Problem ◽  
Electromagnetic Properties ◽  
Problem Solver ◽  
Magnetic Induction Tomography

A Fast Forward Problem Solver for the Reconstruction of Biological Maps in Magnetic Induction Tomography

2010 ◽  
Vol 46 (5) ◽  
pp. 1193-1202 ◽  
Author(s):  
Nuno B. Bras ◽  
Raúl C. Martins ◽  
A. C. Serra ◽  
A. Lopes Ribeiro
Keyword(s):  
Magnetic Induction ◽  
Forward Problem ◽  
Problem Solver ◽  
Magnetic Induction Tomography

SIMULATION OF SINGLE CHANNEL BIOLOGICAL TISSUE SPECTROSCOPY USING COMSOL MULTIPHYSICS

2015 ◽  
Vol 77 (28) ◽  
Author(s):  
Azmi Abou Basaif ◽  
Nashrul Fazli Mohd Nasir ◽  
Zulkarnay Zakaria ◽  
Ibrahim Balkhis ◽  
Shazwani Sarkawi ◽  
...  
Keyword(s):  
Magnetic Induction ◽  
Biological Tissue ◽  
Single Channel ◽  
Medical Condition ◽  
Biological Tissues ◽  
Comsol Multiphysics ◽  
Accurate Information ◽  
Tissue Properties ◽  
Biological Soft Tissue

The enhanced ability to detect accurate location and measure the depth of a   metal inside a biological tissue is very useful in the assessment of medical condition and treatment. This manuscript proposed a solution via the measurement of the tissue properties using magnetic induction spectroscopy (MIS) method to describe the characterization of biological soft tissue. The objective of this study is to explore the viability of locating embedded metal inside a biological tissue by measuring the differences the biological tissue electrical properties using principle of Magnetic Induction Spectroscopy (MIS). Simulation is done using COMSOL Multiphysics software for accurate information on the involved parameters for both metal and biological tissues. Simulation has confirmed that MIS capable of detecting and locate embedded metal inside a biological tissue.

scholarly journals A Simulation Magnetic Induction Tomography (MIT) for Agarwood using COMSOL Multiphysics

2021 ◽  
Vol 10 (3) ◽  
pp. 67-71
Author(s):  
Nurfarahin Ishak ◽  
Chua King Lee ◽  
Siti Zarina Mohd Muji
Keyword(s):  
Magnetic Field ◽  
Magnetic Induction ◽  
Electromagnetic Properties ◽  
Induced Current ◽  
Solenoid Coil ◽  
Agriculture Industry ◽  
Eddy Current Effect ◽  
Coil Diameter ◽  
Great Performance ◽  
Magnetic Induction Tomography

Magnetic induction tomography is an imaging technique used to image electromagnetic properties of an object by using the eddy current effect. (MIT) is a non-destructive method that greatly is used in the agriculture industry. This method provided an opportunity to improve the quality of agricultural products. MIT simulation was used for agarwood existence detection. This paper presented for the simulation system contains 7 channel coils receiver and a channel transmitter which is a sensing detector. This experiment aims to demonstrate the reaction of induced current density and magnetic field at 10 MHz frequency. Then, it also determines the optimal solenoid coil to be used for a better outcome for the magnetic induction system. The simulation result shows that coil diameter, coil length, and coil layer have a crucial role in the great performance of the induced current and magnetic field. The more coil turns, the greater the strength of the permanent magnetic field around the solenoid coil. The result of the simulation is important and needs to be considered to verify the effectiveness of the system for developing the magnetic induction circuit design.

scholarly journals Three-dimensional Magnetic Induction Tomography: Improved Performance for the Center Regions inside a Low Conductive and Voluminous Body

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1306
Author(s):  
Martin Klein ◽  
Daniel Erni ◽  
Dirk Rueter
Keyword(s):  
Magnetic Induction ◽  
Three Dimensional ◽  
Central Area ◽  
Electromagnetic Properties ◽  
Interior Region ◽  
Noise Floor ◽  
Sensitivity Map ◽  
Improved Performance ◽  
Magnetic Induction Tomography ◽  
Conductive Volume

Magnetic induction tomography (MIT) is a contactless technique that is used to image the distribution of passive electromagnetic properties inside a voluminous body. However, the central area sensitivity (CAS) of this method is critically weak and blurred for a low conductive volume. This article analyzes this challenging issue, which inhibits even faint imaging of the central interior region of a body, and it suggests a remedy. The problem is expounded via two-dimensional (2D) and three-dimensional (3D) eddy current simulations with different transmitter geometries. On this basis, it is shown that a spatially undulating exciter coil can significantly improve the CAS by >20 dB. Consequently, the central region inside a low conductive voluminous object becomes clearly detectable above the noise floor, a fact which is also confirmed by practical measurements. The improved sensitivity map of the new arrangement is compared with maps of more typical circular MIT geometries. In conclusion, 3D MIT reconstructions are presented, and for the same incidence of noise, their performance is much better with the suggested improvement than that with a circular setup.

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