Electromagnetic flow meter scale causes of flow noise

Abstract: the electromagnetic flow meter scale causes of flow noise information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The study of the electromagnetic flowmeter flow noise, and discusses the reasons, find out the method of reducing the noise of a fluid, the sensor's signal to noise ratio (especially for the weak excitation current Electromagnetic water meter, two wire system of electromagnetic flow meter) The development and low flow velocity ( 0. Below 1 m/s) 。 More flow meter manufacturers choose model price quote you are welcome to inquire, below is the electromagnetic flow meter scale causes of flow noise article details. The study of the electromagnetic flowmeter flow noise, and discusses the reasons, find out the method of reducing the noise of a fluid, the sensor's signal to noise ratio (especially for the weak excitation current Electromagnetic water meter, two wire system of electromagnetic flow meter) The development and low flow velocity ( 0. Below 1 m/s) And the high velocity ( More than 15 m/s) The expansion of the flow measurement is of great significance. Causes of flow noise has the following several ways: 1, the fluid friction lining and electrode and fluid in positive and negative ions from the electrolyte fluid. The lining and the electrode surface is rough, the higher free ion concentration. The electrode signal of the electric field effect, part of the ions will move to the electrode, form the noise voltage, this is called the flow noise. Flow noise when low conductivity measurements appear more prominent. Flow noise is related to the intensity of the electric field, the high velocity when the induction signal, the greater the noise amplitude is, the greater the output will be very unstable. 2, fluid conductivity, and a sharp change of pH will form the flow noise, upstream dosing performance measurement meter instability is a typical example. Reason is the different medium without mixing, fluid, easy to separate the positive and negative ions in the electrode signal of the electric field effect, part of the ions will move to the electrode, formed the flow noise voltage, output instability. 3, due to the high velocity flow fluid laminar boundary layer thickness near the lining and electrode parts become thin, lining and electrode roughness height broke through the thickness of the laminar boundary layer flow velocity, and fluid hit this part of the roughness height, velocity divergence and mutation. Some of the same as the measuring tube center axis ( Or the opposite) Velocity component, the signal of the weighting function, the electrode signal has a great influence, formed a large positive error, this is the high velocity of flow noise. The fluid flow in the noise and the noise and high-end flow measurement pipe lining and electrode surface roughness directly related, and the slurry noise produced by polarization voltage electrode surface roughness has a lot to do. Electromagnetic flowmeter, the domestic high-end brand flow meter, in order to meet the needs of customers first, quality oriented, let customers use the rest assured. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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