Anti-interference problem of electromagnetic flowmeter (1)

Electromagnetic interference refers to various electromagnetic effects that cause the control system equipment, transmission channels or system functions to decline.

The whole process of disturbing is that the disturbing signal sent by the disturbing source reaches the disturbed device through the coupling channel. The three links of the disturbance are called the three elements of the disturbance system, namely the disturbance source, the disturbance transmission channel and the disturbed equipment.

1 Classification of electromagnetic interference

In the industrial measurement and control system, electromagnetic disturbance is an important problem that affects normal operations. Its occurrence may exist within the system, that is, it may be affected by its own disturbance, or it may come from outside the system, that is, it may be affected by external disturbance. When analyzing electromagnetic interference, the system refers to the electrical equipment or electronic equipment that people plan, manage, and control.