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electromagnetic flow meter principle

Date：2024-05-14 source：Shanghai JSN Micro Flow Meter CO.,LTD

Email:sales01@cxflowmeter.com

Whatsapp:008618049841995

magnetic flow meter principle

The working principle of electromagnetic flow meter is based on Faraday's law of electromagnetic induction. Specifically, when the

conductive liquid flows in the magnetic field and cuts the magnetic field lines, an induced electromotive force E perpendicular to the

direction of movement and the direction of the magnetic field will be generated at both ends of the conductor. This induced electromotive

force E is proportional to the flow rate V of the conductive liquid, and its mathematical relationship can be expressed as E = BLV, where B is

the magnetic induction intensity, L is the length of the conductor, and V is the speed of cutting the magnetic lines of force.

In the electromagnetic flowmeter, the conductive medium in the measuring tube is equivalent to the conductive metal rod in the Faraday test,

and the two electromagnetic coils at the upper and lower ends generate a constant magnetic field. When a conductive medium flows through

it, an induced voltage is generated. Two electrodes inside the pipe will measure the induced voltage generated. This voltage value is a direct

reflection of the flow rate of the conductive liquid.

The overall structure of the electromagnetic flowmeter is simple and reliable, with no moving parts, long service life, no intercepting and

blocking parts, no pressure loss and fluid blockage. Therefore, it can be used in automatic detection, adjustment and program control systems,

without mechanical inertia, fast response and good stability. In addition, the measurement accuracy of electromagnetic flowmeters is not

affected by physical parameters, such as temperature, viscosity, density, etc., so it is widely used in various industrial fluid measurement fields,

especially sewage treatment.

If you want to know more about the parameters and quotations of electromagnetic flowmeter,

Welcome to consult CIXIFM winny:

Email:sales01@cxflowmeter.com

Whatsapp:008618049841995

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