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Everything You Should Know about Water Flow Meters A flow meter refers to a device that is employed to measure the flow rate or quantity of a gas or liquid moving through a pipe. There are so many flow measurement applications each one has its own limitations and engineering demands. Flow meters are known by numerous names, such as flow gauge, flow indicator, liquid meter, and others, depending on the distinct industry. Nevertheless, the purpose, which is to measure flow, remains the same. Here are some of the most crucial things that you must know about a water flow meter. Functions 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 specific application determines the form and capacity of the flow meter. Fluids, gases and liquids, are measured relative to volumetric flow rate and mass flow rate. Each type of flowmeter has its own specific applications and installation requirements. The most important thing to keep in mind when choosing the right flowmeter is to use the application as your model, and not the technology. A significant number of these technologies all work perfectly well on varying applications. If you pick based on the application, you can pick the technology you wish to use depending on precision, cost, durability and reliability, instead of trying to force the technology you want fit the application you actually have.
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Types of Metering Devices
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Electromagnetic flow meters perceive flow with the use of Faraday’s Law of induction. Within an electromagnetic flow meter, there is an electromagnetic coil that generates 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. Due to the fact that electromagnetic flow meters depend on the laws of electromagnetic induction, conductive liquids are the only liquids for which flow can be detected. Vortex flow meters utilize a bluff body, or shedder bar to hamper flow. As the fluid moves the body, vortices, or swirls are generated downstream in an alternating pattern a lot like 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 that utilize vortex flow meters are water, wastewater, steam, pulp and paper, chemicals, and petrochemicals. A variable area meter refers to a meter that calculates fluid flow by letting the cross sectional area of the device vary as a response to the flow, bringing about some measurable effect that establishes the rate.