64-Channel electrical impedance imaging information acquisition system and information acquisition method thereof

Abstract

The invention discloses a 64-channel electrical impedance imaging information acquisition system and an information acquisition method thereof. The number of electrodes currently used in an electricalimpedance imaging system is mostly 16 or 32 and the size of the system is too large and inconvenient to carry. The 64-channel electrical impedance imaging information acquisition system includes a signal source module, a current input switch module, a current output switch module, a signal receiving switch module, an amplification module group, a filter module, an AD conversion module, a data receiving terminal, a first power module, a second power module, a lithium battery, a display screen and 64 electrodes. The amplification module group is composed of 64 amplification modules. The 64-channel electrical impedance imaging information acquisition system has 64 electrodes, can obtain more information, and increases the acquisition precision and the resolution of the system. The 64-channelelectrical impedance imaging information acquisition system adopts a multi-way switch to control the channels, thereby reducing the cost and the operation complexity, and facilitating the control ofthe system.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to a 64-channel electrical impedance imaging information collection system and an information collection method thereof. Background technique [0002] Electrical Impedance Tomography (EIT) is a new direction of imaging technology. Its basic principle is to paste several electrodes on the surface of the human body or object, apply a weak current to some of them, measure the voltage value on other electrodes, and reconstruct the The electrical impedance value or the change value of electrical impedance inside the human body or object. Since the electrical impedance imaging technology does not use nuclides or rays, it is harmless to the human body, so it can be measured multiple times, reused, easy to operate, and fast in imaging speed. Coupled with its low cost and no special working environment, it has become a monitoring device that can be used for long-term monitori...

AI Technical Summary

Problems solved by technology

[0003] At present, the number of channels used in international electrical impedance imaging systems is mostly 16 or 32, and the system size is large, which

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