A newly proven technique is non-invasive bio-impedance, and also known as Electrical Impedance Tomography (EIT), which is used for medical or non-medical applications. EIT images are based on the internal distributions of the conductivity or resistivity from the boundary data, which depend on the voltage measurement of the stomach attached electrodes of the human body. An experimental study of the EIT system presented here has been used 8/16 surface electrodes configurations for the human body’s stomach. Then, according to the data acquisition methods of the EIT, the surface potentials of the stomach through the current injection were measured. For current pulses, a voltage-controlled current source has been created, and the created current source is a combination of voltage to current converter and current signal generator. Current positions and measuring voltages have been calculated using the designed control unit. However, the imaging algorithm requires sufficient data through the experimental work, which defines the cross-sectional image of resistivity. The cross-sectional image has been based on the Finite Element Method (FEM). It produces 2D/3D images, impedance distribution graphs and Mesh models. The proposed EIT system has been used for non-medical and industrial applications, which have non-invasive, inexpensive, radiation-free and a high potential for imaging modality.

中文翻译：

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电阻抗断层扫描对人体胃部的实验测量和控制

一项新近得到验证的技术是非侵入性生物阻抗，也称为电阻抗断层扫描 (EIT)，用于医疗或非医疗应用。EIT 图像基于来自边界数据的电导率或电阻率的内部分布，这取决于人体胃连接电极的电压测量值。此处介绍的 EIT 系统的实验研究已将 8/16 表面电极配置用于人体胃部。然后，根据EIT的数据采集方法，通过电流注射测量胃的表面电位。对于电流脉冲，创建了压控电流源，创建的电流源是电压电流转换器和电流信号发生器的组合。当前位置和测量电压已使用设计的控制单元进行计算。然而，成像算法需要通过实验工作获得足够的数据，从而定义了电阻率的横截面图像。横截面图像基于有限元法 (FEM)。它可以生成 2D/3D 图像、阻抗分布图和网格模型。所提出的 EIT 系统已用于非医疗和工业应用，具有非侵入性、廉价、无辐射和高成像模式的潜力。它可以生成 2D/3D 图像、阻抗分布图和网格模型。所提出的 EIT 系统已用于非医疗和工业应用，具有非侵入性、廉价、无辐射和高成像模式的潜力。它可以生成 2D/3D 图像、阻抗分布图和网格模型。所提出的 EIT 系统已用于非医疗和工业应用，具有非侵入性、廉价、无辐射和高成像模式的潜力。