Non-contact electrical resistance tomography data acquisition device and method
An electrical resistance tomography, non-contact technology, applied in the detection field, can solve problems affecting measurement flexibility and applicability, and achieve the effects of simple implementation, convenient installation, and expanded application range
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[0029] like figure 1 , 2As shown, the non-contact electrical resistance tomography data acquisition device is composed of a sensor, a data acquisition module 5 and an image reconstruction computer 6, the sensor is connected to the data acquisition module 5, and the data acquisition module 5 is connected to the image reconstruction computer 6; the sensor includes an insulating pipeline 1. A plurality of rectangular metal electrodes 2, a plurality of phase-sensitive demodulation modules 3 and a direct digital frequency synthesizer module 4, a plurality of rectangular metal electrodes 2 are installed at equal intervals around the insulation pipe 1, and a plurality of rectangular metal electrodes 2 It is connected to the input port of the corresponding phase-sensitive demodulation module in the plurality of phase-sensitive demodulation modules 3, and the plurality of phase-sensitive demodulation modules 3 are connected to the direct digital frequency synthesizer module 4 after bei...
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