What is a flow meter and what does it do Flow meters are devices that can be used to measure the amount of liquid, or gas which passes through it. It is an instrument which is used to conduct the flow measurement….

Turbine flowmeter is a common type of flow meter. It is one of the most precise and reproducible flow meters accessible for transfer of custody. The meter includes a body, a bearing-supported rotor, an inlet nose cone, and an electronic or mechanical…

In an industrial plant, one of the most significant measurements is flow. How much of a fluid do you need to perform a specified job? Or how much petrol do you need to sell at the gas pump? Whether you do the…

Mass flowmeters are devices that measure the amount fluid passed to a process. Mass flowmeters are used where the composition of materials used are important, which ensures the quality of the product. These are the different types of mass flowmeters: 1. Coriolis…

Impeller-Turbine Mass Flow Meters: The impeller, turbine type mass flow meter uses two rotating elements in the fluid stream, an impeller and a turbine. Both elements contain channels through which the fluid flows. The impeller is driven at a constant speed by…

Working principle of electromagnetic flowmeter: In the electromagnetic meter, the constant magnetic field is generated around the pipe by the magnet and the flowing liquid acts as a conductor. The fluid that flows can be considered as a continuous series of disks…

In the Rotameter, a weighted float or a plumb bob contained in a vertical conical tube is raised to the equilibrium position between the downward force of the plumb bob and the upward force of the fluid in addition to the floating…

Electromagnetic flowmeters Advantages: Unobstructed flow passage without projecting parts No moving parts No additional pressure drop Essentially flow profile insensitive, only short inlet and outlet sections required Unaffected by changes in temperature, density, viscosity, concentration and electrical conductivity Favorable choice of materials…

Doppler flow meters are based on the Doppler principle. The transmitter of a Doppler flow meter projects an ultrasonic beam at a frequency of about 0.5 MHz into the flowing current and diverts the reflected frequency. Principle of operation: An ultrasonic wave…

Orifice and venturi meter: Orifice and venturi meter works under the same principle, both meters creates a restriction in the flow channel and the pressure difference across the restriction is measured, which is proportional to the rate of discharge of flowing fluid…