Industrial Automation Magazine India

Coriolis flow measurement: Simultaneous measurement of mass flow, density, temperature and viscosi

Published on : Tuesday 30-11--0001

Coriolis flow measuring principle

 

Each Coriolis flowmeter has one or more measuring tubes which an exciter causes to oscillate artificially. As soon as the fluid starts to flow in the measuring tube, additional twisting is imposed on this oscillation due to the fluid‘s inertia. Two sensors detect this change of the tube oscillation in time and space as the “phase difference.” This difference is a direct measure of the mass flow.

 

In addition, the fluid density can also be determined from the oscillation frequency of the measuring tubes. The temperature of the measuring tube is also registered to compensate thermal influences. The process temperature derived from this is available as an additional output signal.

Benefits

 

    Universal measuring principle for liquids and gases

 

    Multivariable measurement – simultaneous measuring of mass flow, density, temperature and viscosity

 

    High measuring accuracy: typically ±0.1% o.r., optionally: ±0.05% o.r. (PremiumCal)

 

    Measuring principle independent of the physical fluid properties and the flow profile

 

    No inlet/outlet runs necessary

It is basically used for liquids and gas.

Endress+Hauser (India) Pvt. Ltd.
Mumbai , India
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