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A fast approach to determine excitation eigenfrequencies for TD-EIT and FD-EIT
Measurement Science and Technology, 2023Abstract Electrical impedance tomography can reconstruct the complex conductivity distribution by injecting a current or voltage at a specific frequency into the target domain. The complex conductivity spectroscopy of numerous biological tissues is frequency-dependent. A suitable excitation frequency is vital to high-quality imaging over
Yang Li +6 more
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Physiological Measurement, 1995
A phantom was designed for testing and comparing multifrequency EIT data collection systems. The phantom simulates a cylinder of homogeneous conductor with 16 drive and 16 receive electrodes interleaved. Combinations of resistors and capacitors were used to simulate the complex impedance, Z*, of a typical tissue in the frequency range 8-2048 kHz ...
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A phantom was designed for testing and comparing multifrequency EIT data collection systems. The phantom simulates a cylinder of homogeneous conductor with 16 drive and 16 receive electrodes interleaved. Combinations of resistors and capacitors were used to simulate the complex impedance, Z*, of a typical tissue in the frequency range 8-2048 kHz ...
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Simultaneous Acquisition of EIT and ECG Signals on Active EIT Electrodes
IEEE Transactions on Biomedical EngineeringThis paper introduces a new method of simultaneous acquisition of electrocardiogram (ECG) signals and electrical impedance tomography (EIT) measurements on active electrodes, i.e. electrodes that are applying current, in an EIT system.Howland noise reduction followed by an integrate-and-dump filter and adaptive filtering are used to extract the ECG ...
Ahmed AbdelWahab +7 more
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A multifrequency serial EIT system
Physiological Measurement, 1996A multifrequency (1 kHz-1 MHz) serial electrical impedance tomography (EIT) system has been developed. It is based on 16 active electrodes and can be extended up to 32. Each active electrode can be programmed for current driving and for measuring either the injected current or the voltage difference between adjacent electrodes, and includes calibration
N, Chauveau +3 more
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Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
We study the EIT of Rb vapor under the condition when a microwave field resonant to the hyperfine transition has been applied. Developed theory and applications will be discussed.
Hebin Li +3 more
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We study the EIT of Rb vapor under the condition when a microwave field resonant to the hyperfine transition has been applied. Developed theory and applications will be discussed.
Hebin Li +3 more
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2003
The paper presents practical remarks on using regularization package and standard Matlab functions [1]. The regularization package has been developed by Hansen [2, 3]. A rectangular structured matrix (aroused in electrical impedance tomography (EIT) reconstruction problem) was used in our research.
Polinski, Artur +2 more
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The paper presents practical remarks on using regularization package and standard Matlab functions [1]. The regularization package has been developed by Hansen [2, 3]. A rectangular structured matrix (aroused in electrical impedance tomography (EIT) reconstruction problem) was used in our research.
Polinski, Artur +2 more
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Survey of EIT Image Reconstruction Algorithms
Journal of Shanghai Jiaotong University (Science), 2021Yixin Ma
exaly
EIT-like effect and mode inversion in stacked metamaterials based on bright-bright mode coupling
Optik, 2022Guohong Ma, Zuanming Jin, Xiaona Yan
exaly