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Simple electrical impedance tomography experimental system

 
Overview

Electrical Impedance Tomography (EIT) technology is a functional imaging technology. Its principle is to place electrodes on the surface of an object, apply a weak current to the electrodes, and measure the voltage values ​​on other electrodes. According to the voltage The relationship with the current reconstructs an image that reflects the electrical impedance value or the change in electrical impedance inside the object.

The front-end measurement device of the system consists of five modules: electrode, multiplexer, voltage signal acquisition, excitation current injection, and control processing.

 

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