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Unlimited introduction to the development of integrated orifice flowmeter

Although the integrated orifice flowmeter appeared only in the 1970s, it can be made into a non-contact type, and can be used to measure the opening flow in conjunction with the integrated orifice water level gauge without disturbing or resisting the fluid. Very popular, it is a promising flow meter.
The integrated orifice flowmeter has a high cost and the signal is susceptible to external magnetic field interference, which affects the wide application in industrial tube flow measurement. To this end, the product is constantly improving and updating, and it is developing into a computer. The integrated orifice flowmeter is based on the geometrical principle that the velocity of the integrated orifice plate in the flowing medium is equal to the average flow velocity of the measured medium and the velocity of the acoustic wave itself. It is also measured by the flow rate to reflect the flow rate. The integrated orifice flowmeter is made by applying the electric conductor to generate an induced electromotive force in a magnetic field, and the induced electromotive force is proportional to the flow rate, and the principle of measuring the electromotive force to reflect the flow of the pipeline is made. Its measurement accuracy and sensitivity are high. The industry is often used to measure the flow of water, pulp and other media. The maximum diameter can be measured up to 2m, and the pressure loss is extremely small. However, media with low conductivity, such as gas and steam, cannot be used.
The height at which the float is stationary can be used as a measure of the flow rate. Since the flow cross-sectional area of the flow meter varies with the height of the float, and the pressure difference between the upper and lower parts is equal when the float is stationary, the flow meter is called a variable area flow meter or an equal pressure drop type flow meter. A typical instrument for this type of flow meter is a rotameter. A flowmeter type flowmeter that uses the momentum of a measuring fluid to reflect the flow rate. Since the momentum P of the flowing fluid is proportional to the density of the fluid and the square of the flow velocity v, ie pv2, when the flow cross section is determined, v is proportional to the volumetric flow rate Q, so p Q2. If the proportional coefficient is A, then Q=A. Therefore, P is measured to reflect the flow rate Q. In this type of flowmeter, most of the flowmeters are used to convert momentum into pressure, displacement or force, and then the flow rate is measured. Typical meters for such flow meters are target and rotary wing flow meters.
The flowmeter weighing impulse flowmeter that measures the flow using the impulse theorem is used to measure the flow rate of the granular solid medium, and is also used to measure the flow rate of the mud, the crystalline liquid, and the abrasive. Flow measurement ranges from a few kilograms per hour to nearly 10,000 tons. The typical instrument is a horizontal component force impulse flowmeter. The measurement principle is that when the measured medium falls freely from a certain height h to a detection plate with a tilt angle, an impulse is generated, and the horizontal force component of the impulse is proportional to the mass flow rate. Measuring this horizontal component can reflect the mass flow.

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