Flow: Coriolis Flow Meter

How do I measure flow? > Flow: Coriolis Flow Meter

Coriolis meters measure the mass flowrate of a stream by making use of the Coriolis effect.

How it Works

Fluid flows through a tube which is forced to vibrate in a harmonic oscillation by an external driver.  The tube can be straight or ‘U’ shaped.

The momentum of the fluid causes the already-oscillating tube to vibrate in a slightly different way.  This change in the mode of vibration is proportional to the mass flow rate of the fluid flowing through the tube and can be measured with external sensors.  The mass flow rate of the fluid can then be determined.




  • Good accuracy and repeatability

  • It does not require strength pipe length upstream / downstream the device location

  • Direct measure of mass flow and density with a single device


  • High pressure drop at high flow rates

  • High CAPEX versus other technologies

  • Size limitation (16” / 400mm largest diameter currently offered)

  • Can have difficulty measuring the flow rate of low pressure gas

  • It can be subject to issues with piping stress and vibration

  • Due to these limitations, it has limited applicability on main flare headers

Case study

No case study available at this time.

Coriolis Meters

Coriolis (Mass) flow meters introduce an acceleration into a flowing stream and measure mass flow by detecting the resulting change in angular momentum, this is known as a Coriolis effect.

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