In ECT system

it is requested that the output signal of the phase shifter must have the same frequency and phase with the detect signals to ensure the accuracy of the phase-sensitive demodulator’s output.But in the detection system there are a large number of stray capacitance

which makes phase shift of the detect signals.To improve the accuracy of the detection

the research of 12-electrode oil-water two-phase flows electrical capacitance tomography system was carried out.Based on the analysis of the ECT sy...