To accomplish the required task of identifying a hidden object, an EIT system that controls and monitors I/O system signals was designed and implemented to improve the image reconstruction capability. Their systems have functioned by controlling the injection and measurement signal parameters such as injection frequency, voltage amplitude, and phase. Numerous EIT researchers have studied and attempted to implement a system that can estimate the hidden object structure (shape), which may help to identify the hidden object.
The changes in conductivity are measured using several electrodes placed around the body. It works by detecting and tracking the electrical conductivity changes hidden in a medium such as a pipeline, human body parts, or chemical process.
The EIT system operates using low-power signal injection and measurements to reconstruct the estimated cross-section image. Developed to overcome some of the disadvantages of existing imaging techniques, it provides flexibility, radiation-free operation, and noninvasive imaging ability and is relatively inexpensive. Electrical impedance tomography (EIT) is a relatively new imaging technique.
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