There are two types of electrodes generally used:

Signal electrode and ground electrode

Signal electrode: The signal electrode is thoroughly electrostatically shielded to ensure that the small signal will not be disturbed by the coil and ensure the measurement accuracy of low flow rate.

Ground electrode: The ground electrode structure is used to form a balanced electrode plane, which ensures that the entire process of measuring the average speed is limited to the balanced electrode plane, which can well eliminate electrical noise interference and provide accurate measurement results.