The structure of the electromagnetic flow meter scale1

Abstract: the structure of the electromagnetic flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The structure of the electromagnetic flowmeter is mainly composed of magnetic circuit system, measure the catheter, electrode, shell, lining and converter and other parts. Magnetic circuit system, its function is to produce uniform dc or ac magnetic field. Dc magnetic circuit with * magnets, its advantage is structure. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the structure of the electromagnetic flowmeter scale article details. The structure of the electromagnetic flowmeter is mainly composed of magnetic circuit system, measure the catheter, electrode, shell, lining and converter and other parts. Magnetic circuit system, its function is to produce uniform dc or ac magnetic field. Dc magnetic circuit with * magnets, its advantage is simple structure, small influence of the ac magnetic field, but it is easy to make by measuring the electrolyte liquid polarization in the ducts, the positive electrode is surrounded by negative ion, negative electrode is surrounded by positive ions, the electrode polarization, and lead to increased internal resistance between two electrodes, thus seriously affect the normal work of the instrument. When the pipe diameter is bigger, * magnets corresponding is big, bulky and not the economy, so the electromagnetic flowmeter generally adopts the alternating magnetic field, and is 50 hz power excitation power frequency. Measured conductivity measurement catheter: its role is to make the liquid through. In order to keep the lines of magnetic force by measuring the catheter flux was shunt or short circuit, measuring tube must be used no permeability, low electrical conductivity, low thermal conductivity, and has certain mechanical strength of materials, can choose not magnetic stainless steel, glass steel, high strength plastic, aluminum, etc. Electrodes, its effect is measured and derivation is proportional to the induction electric potential signal. General use of magnetic stainless steel electrode, and are required to flush with the lining, so that the fluid through an unimpeded. Its vertical direction of the installation position should be in the pipeline, in order to prevent the sediment accumulation and influence on which the accuracy of measurement. Shell: application of ferromagnetic materials, is the housing distribution system of excitation coil, and isolate the interference of external magnetic field. The inside lining: in the measuring tube and flange sealing surface, a layer of complete electrical insulating lining. Direct contact with the liquid to be tested, and its role is to increase the measuring pipe corrosion resistance, prevent induction electric potential by metal pipe wall short-circuit measurement. Lining material for corrosion resistance, high temperature resistance, wear resistance of ptfe plastic, ceramic, etc. Converter: the induction electric potential signal generated by the liquid flow is very weak, much affected by various interference factors, the role of the converter is the induction electric potential signal amplification translates into a unified standard signal and suppress the main disturbance signal. Its task is to put the electrodes to detect the induction electric potential signal Ex dc signal amplifying into a unified standards. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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