Measurement difficulties：The user has previously selected the imported impeller flowmeter, and the accuracy of the water meter selected for general mechanical transmission output is low, with an error of about 2%. This kind of flowmeter can not maintain the calibration characteristics for a long time, and has a great impact on the flow characteristics of the physical properties of the fluid.

Solution：The measuring principle of the target flowmeter is the force on the target plate, which is transmitted by the target rod to make the elastomer of the sensor change slightly. After the circuit conversion, the corresponding electrical signal is output to measure the non-conductive medium and industrial waste water, which are not affected by the medium characteristics.