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A flow meter refers to an implement that is utilized to measure the flow rate or quantity of a gas or liquid moving through a pipe. There are a lot of flow measurement applications and each one has its own restrictions and engineering requirements. Flow meters are known by numerous names, such as flow gauge, flow indicator, liquid meter, and others, depending on the distinct industry. However, the function, which is to measure flow, stays the same. Here are some of the most crucial things that you must know about a water flow meter.
Uses of a Flow Meter
A flow meter is used in various types of applications to measure the volumetric flow rate or mass flow rate. The particular application determines the type and capacity of the flow meter. Fluids, gases and liquids, are measured relative to volumetric flow rate and mass flow rate. Every kind of flowmeter has its own specific applications and installation demands. The most critical thing to remember when selecting the right flowmeter is to use the application as your marker, and not the technology. A significant number of these technologies all work perfectly well on varying applications. If you choose based on the application, you can choose the technology you wish to use relying on accuracy, cost, durability and reliability, instead of trying to make the technology you want suit the application you actually have.
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Kinds to Flow Meters
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Electromagnetic flow meters discern flow by means of Faraday’s Law of induction. Within an electromagnetic flow meter, an electromagnetic coil is present that produces a magnetic field, and electrodes that capture electromotive force (voltage). Because of this, even though it may appear like there is nothing inside the flow pipe of an electromagnetic flow meter, flow can be calculated. Owing to fact that electromagnetic flow meters are dependent on the laws of electromagnetic induction, conductive liquids are the only liquids for which flow can be measured.
Vortex flow meters employ a bluff body, or shedder bar to break up flow. As the fluid moves the body, vortices, or swirls are created downstream in an alternating pattern comparable to the way a flag flaps in the wind. A transducer (piezoelectric crystal, pressure sensor, ultrasonic sensor) is employed to identify the vortices, and the frequency of those vortices corresponds to the velocity of flow. Some examples of applications for which vortex flow meters are used are water, wastewater, steam, pulp and paper, chemicals, and petrochemicals.
A variable area meter is a meter that quantifies fluid flow by permitting the cross sectional area of the device to differ as a response to the flow, leading to some measurable effect that ascertains the rate.