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Description of the characteristics and measurement principle of electromagnetic flowmeter

The 220V power supply electromagnetic flowmeter is currently used in a wide range. In the industrial sites we can see, there will be 220V power supply. As long as the flowmeter is installed according to the requirements, it can be operated by powering on. The 220V power supply electromagnetic flowmeter can be made into one type and one body type. The 24V power supply electromagnetic flowmeter is mainly used in industrial sites and does not allow the use of AC power or a place where low voltage DC power is used for safety considerations, or is it equipped with a flow totalizer to supply electromagnetic flowmeters by an integrated calculator. Only 24V power supply can be selected. At present, the application is not too much is a battery-powered electromagnetic flowmeter. Generally, in this case, it is used without any power supply in the field. At the same time, its price is necessarily much higher than the same product. 2, electromagnetic flowmeter measurement principle: by the law of electromagnetic induction. When the conductor moves in the magnetic field and cuts the magnetic lines of force. Inductive potential is generated in the conductor. The same reason. A conductive liquid that cuts magnetic lines of force in a magnetic field. An induced potential is also generated. When certain conditions are met, the induced potential is proportional to the average flow velocity of the conductive liquid in the pipe. When the pipe diameter and the magnetic induction strength are constant, there is a linear relationship between the induced potential and the volume flow or average flow velocity of the liquid to be measured. If you insert an electrode on each side of the liquid pipe. It can lead to the induced potential. By measuring the magnitude of this induced potential, the flow rate can be determined.

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