Flow Measurement
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Helix flowmeter
What is Helix flowmeter? The helix flowmeter is a positive displacement device that uses two radially inclined helical gears to…
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Construction of Electromagnetic flowmeter
Working principle of electromagnetic flowmeter: In the electromagnetic meter, the constant magnetic field is generated around the pipe by the…
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Rotameter – Characteristics, Components, advantages and disadvantages
In the Rotameter, a weighted float or a plumb bob contained in a vertical conical tube is raised to the…
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Advantages and Disadvantages of Flowmeters,
Electromagnetic flowmeters Advantages: Unobstructed flow passage without projecting parts No moving parts No additional pressure drop Essentially flow profile insensitive,…
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Doppler Flowmeter, principle, construction and advantages
Doppler flow meters are based on the Doppler principle. The transmitter of a Doppler flow meter projects an ultrasonic beam…
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Advantages and Disadvantages of Orifice and Venturi meter
Orifice and venturi meter: Orifice and venturi meter works under the same principle, both meters creates a restriction in the…
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Annubar flowmeter operation
Annubars are sometimes called average pilots and contain multiple pressure taps to “average” the flow; this is to try to…
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Overview of flow measurement.
Introduction The ability to measure flow rate is another important process measurement. There are four different classes of flow measurement…
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What is Laser Doppler anemometer
Introduction The Doppler effect is a method to measure linear velocity. When a narrow laser beam (or radio beam or…
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What is Cavitation and Flashing?
Cavitation and flashing are two main kinds of noise in flowmeters and in control valves. Cavitation: When the decreased…
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