ESMEMF Split-type electromagnetic flowmeter for liquid

When a conductive liquid flows at a velocity u in a magnetic field, the conductive fluid cuts through the magnetic lines of force, generating an induced electromotive force e between electrodes installed at the ends of the diameter of the pipe section perpendicular to the magnetic field. The magnitude of e is proportional to the magnetic flux density B, the pipe diameter D, and the average fluid velocity u, that is, e = BDu. From this, the volumetric flow rate of the pipe can be obtained: qv = πDu = πDe / 4B, meaning that the volumetric flow rate qv has a linear relationship with the induced electromotive force e and the pipe diameter D, is inversely proportional to the magnetic flux density B, and is independent of other physical parameters.

1.The measurement can not be influenced by the change of fluid density,viscosity,temperature,pressure and conductivity;

2.No mechanical inertia,totally deal with digital quantity, quick response and high anti-interference,reliable measurement, high precision.

3.With the function of measuring two way flow, can show the positive and reverse flow, also have two way current and rate output, which is convenient for the record and store different flow signal;

4.Employ Teflon or rubber liner and different combination of electrode material.

5.Power supply AC220V, DC24V, 3.6V lithium battery.