Coriolis effect mass flow rate meter instrumentation for measuring the quantity of mass that has transferred over a period of time.
Coriolis mass flow meters use changes in rotational inertia to measure the mass flow rate.
The direction of flow is changed by incorporating bends within the device to redirect the flow away, and then back to the original direction of flow. The flow is split along two identical bent tubes, which are both vibrated at the same frequency.
The induced oscillation of the tubes will add rotational inertia to the inward and outward flows, which results in a slight opposing force being applied to the arms of the tube.
This opposing force between the inward and outward flow arms of the tube causes a phase shift in oscillation. By using a formula specific to particular type of coriolis flow meter, the flow rate can be calculated from the phase shift.
A mass flow meter is an instrument which can measure either directly or indirectly the mass of a substance which is passing through a specific location in a set period of time.
Mass flow meters can provide an instantaneous analogue, digital or pulse output of the mass flow rate.
A mass flow meter may also include additional electronics such as a digital indicator for displaying the total mass measured to date.