Magnetic circuit systems: Mainly used to generate DC and AC magnetic fields. Electrodes: Electrode are used primarily to measure the flow signal generated by the flow of a conductive liquid. In fact, most of the electromagnetic flowmeters made in China are two measuring electrodes.

Electromagnetic flow meter are a specific system comprised by transmitter and converter, cable length, insulation issue, number of shielding layers, distributed capacitance and conductor cross-sectional area all affect the measurement result.