What Is Stainless Steel Electromagnetic Flowmeter
The principle of stainless steel electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. The measuring tube of the flow meter is a non-magnetic alloy short tube lined with insulating material. The two electrodes are fixed to the measuring tube through the tube wall in the diameter direction. The electrode tip is substantially flush with the inner surface of the liner. When the exciting coil is excited by the two-wave pulse, an operating magnetic field having a magnetic flux density B is generated in a direction perpendicular to the axis of the measuring tube. At this time, if a fluid having a certain conductivity flows through the measuring tube. The cutting magnetic field lines induce the electromotive force E. The electromotive force E is proportional to the magnetic flux density B, and the product of the inner diameter d of the measuring tube and the average flow velocity v. The electromotive force E (flow signal) is detected by the electrode and sent to the converter via a cable. After the converter amplifies the flow signal, it can display the fluid flow, and can output signals such as pulses and currents for flow control and regulation.
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