Electromagnetic flow meter scale pulsating flow measurement

Abstract: the electromagnetic flow meter scale pulsating flow measurement information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Pulsating flow in industrial pipe flow, it may be by rotating or reciprocating engine, compressor, blower, pump, winged rotating machinery also to leaf through small pulsation frequency. Some volumetric flowmeter can also produce pulsation. Caused by vibration. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale for measuring pulse electromagnetic flowmeter flow method the article details. Pulsating flow in industrial pipe flow, it may be by rotating or reciprocating engine, compressor, blower, pump, winged rotating machinery also to leaf through small pulsation frequency. Some volumetric flowmeter can also produce pulsation. Vibration caused by the resonance, the pipeline operation and control system of the oscillation, 'hunting vibration valve, pipe fittings, valves and flow separation caused by rotating machinery, is the source of the flow pulsation may be. There are three kinds of pulsating flow measurement methods: one is the fast response of the flowmeter; The second is to use the appropriate method to ripple attenuation amplitude is small enough, then using ordinary flow meter to measure; Three is the measured flow under pulsating flow state values for error correction. In some systems, the latter two methods should be combined to achieve measurement, this is because the big pulstion amplitude, beyond the scope of estimate formula, if only with damping method, attenuation after not to reach the steady flow pulsation amplitude and scope. When the electromagnetic flowmeter to choose higher excitation frequency, can make a quick response to the pulsating flow, hence the pulsating flow measurement, commonly used to measure the reciprocating pump, diaphragm pump export flow, etc. Used for pulsating flow measurement of electromagnetic flowmeter, usually in the following three aspects must be special design, and makes appropriate debugging when put into operation. One, the excitation frequency can be adjusted in order to get adapted to pulse frequency of excitation frequency. Is too high and too low will be unfavourable. Second, the analog signal processing part of the electromagnetic flowmeter should prevent pulse peak arrival into saturated state. Pulsating flow sometimes extraordinarily high pulse peak, if the peak occurs, the flow of electromagnetic flowmeter signal input channel into the saturation state, as the peak is eliminated, will cause the meter says the value is low. Third, in order to read the average, the display part should be smooth processing. Due to the measurement part of the electromagnetic flowmeter can quickly response to the change of the pulsating flow, reflect the real flow, real but display part if also faithfully actual flow value, certainly will cause the display value fluctuation significantly to beat, readings, so average display should be take a period of time. Its implementation method is usually a string into a inertia link, select appropriate time constant, can stable display instrument. But if time constant chosen too large, the average flow rate changes, shows part of the response is slow, bring illusion to the observer. Above is about electromagnetic flowmeter measurement of pulsating flow method is introduced, if you want to learn more about the knowledge of the flow meter, procurement or flowmeter, selection of demand can flow meter manufacturer, we will serve you wholeheartedly. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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