What is the difference between a Coriolis mass flowmeter and a Coriolis force flowmeter?

A Coriolis mass flowmeter (also known as a Coriolis force flowmeter) measures flow by generating a Coriolis force proportional to the mass flow rate when a fluid flows through a vibrating tube. Because it provides truly high-precision direct flow measurement, is wear-resistant and corrosion-resistant, and can measure a variety of media and parameters, it is now widely used in petrochemical, pharmaceutical, food, and other industrial processes. They are essentially the same type of flowmeter.

A Coriolis flowmeter is a device that uses the Coriolis force principle to measure flow rate, also known as a Coriolis force flow meter.

A Coriolis mass flowmeter measures flow by passing a fluid through a specially shaped vibrating tube and then measuring the Coriolis force generated by the vibrating tube. As the fluid passes through the vibrating tube, the Coriolis force causes the tube to bend. The sensor measures this bending and converts it into a flow rate value.

When fluid passes through a vibrating pipe, the inertia of the vibrating pipe and the mass of the fluid generate Coriolis forces in the pipe. Coriolis forces are inertial forces caused by rotational effects and are perpendicular to the direction of fluid flow and the plane of vibration of the pipe.

Bending deformation: Due to the Coriolis force, the vibrating pipe undergoes slight bending deformation. This deformation can be detected and measured by sensors such as optical gratings, piezoelectric sensors, or vibration sensors.

Phase difference measurement: The sensor in a Coriolis flowmeter measures the phase difference between curved pipes. This phase difference is proportional to the mass flow rate of the fluid passing through it. By measuring the change in phase difference, the fluid flow rate can be calculated.

Flow calculation: The measured phase difference is compared and processed with a pre-calibrated standard curve or algorithm to determine the mass flow rate or volume flow rate of the fluid.

Thus, Coriolis flowmeters and Coriolis flowmeters are the same flow measurement devices, differing only in their names. For example, the American VTON brand uses the Coriolis force principle to measure fluid flow. They are suitable for measuring various liquids and gases with high accuracy and stability.