A three-dimensional electrical impedance imaging system and imaging method of respiratory process based on pxi bus
A technology of impedance imaging and three-dimensional electricity, which is applied in the medical field, can solve problems such as poor system stability and inaccurate data demodulation results, and achieve the effects of small system errors, maximized software resources, and fast transmission speed
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[0039]The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.
[0040] A three-dimensional electrical impedance imaging system for breathing process based on PXI bus, its structure diagram is as follows figure 1 shown. The system includes an excitation source module, an acquisition card module, and a controller module. The three modules are connected through the PXI bus. The excitation source module is connected to the human chest cavity through the sensor electrodes. The acquisition card module includes a signal conditioning circuit, an acquisition card, and a digital IO board. The controller module is connected with the human-computer interaction module.
[0041] The excitation source module includes the excitation source, the excitation source conditioning circuit and the...
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